Merge branch 'master' into design-touchup

.circleci/config.yml

@@ -14,6 +14,8 @@ jobs:
     working_directory: ~/app
 
     steps:
+      - run: sudo apt-get update; sudo apt-get -y install autoconf build-essential libgmp3-dev libtool
+
       - checkout
 
       - run: mix local.hex --force
@@ -70,6 +72,11 @@ jobs:
 
       - run: mix compile
 
+      # Ensure NIF is compiled for libsecp256k1
+      - run:
+          command: make
+          working_directory: "deps/libsecp256k1"
+
       # `deps` needs to be cached with `_build` because `_build` will symlink into `deps`
 
       - save_cache:

apps/block_scout_web/assets/__tests__/pages/address.js

@@ -1,300 +1,327 @@
 import { reducer, initialState } from '../../js/pages/address'
 
-describe('PAGE_LOAD', () => {
-  test('page 1 without filter', () => {
-    const state = initialState
+describe('RECEIVED_NEW_BLOCK', () => {
+  test('with new block', () => {
+    const state = Object.assign({}, initialState, {
+      validationCount: 30,
+      validatedBlocks: [{ blockNumber: 1, blockHtml: 'test 1' }]
+    })
     const action = {
-      type: 'PAGE_LOAD',
-      addressHash: '1234',
-      beyondPageOne: false,
-      pendingTransactionHashes: ['1']
+      type: 'RECEIVED_NEW_BLOCK',
+      msg: { blockNumber: 2, blockHtml: 'test 2' }
     }
     const output = reducer(state, action)
 
-    expect(output.addressHash).toBe('1234')
-    expect(output.beyondPageOne).toBe(false)
-    expect(output.filter).toBe(undefined)
-    expect(output.pendingTransactionHashes).toEqual(['1'])
+    expect(output.validationCount).toEqual(31)
+    expect(output.validatedBlocks).toEqual([
+      { blockNumber: 2, blockHtml: 'test 2' },
+      { blockNumber: 1, blockHtml: 'test 1' }
+    ])
   })
-  test('page 2 without filter', () => {
-    const state = initialState
+  test('when channel has been disconnected', () => {
+    const state = Object.assign({}, initialState, {
+      channelDisconnected: true,
+      validationCount: 30,
+      validatedBlocks: [{ blockNumber: 1, blockHtml: 'test 1' }]
+    })
     const action = {
-      type: 'PAGE_LOAD',
-      addressHash: '1234',
-      beyondPageOne: true,
-      pendingTransactionHashes: ['1']
+      type: 'RECEIVED_NEW_BLOCK',
+      msg: { blockNumber: 2, blockHtml: 'test 2' }
     }
     const output = reducer(state, action)
 
-    expect(output.addressHash).toBe('1234')
-    expect(output.beyondPageOne).toBe(true)
-    expect(output.filter).toBe(undefined)
-    expect(output.pendingTransactionHashes).toEqual(['1'])
+    expect(output.validationCount).toEqual(30)
+    expect(output.validatedBlocks).toEqual([
+      { blockNumber: 1, blockHtml: 'test 1' }
+    ])
   })
-  test('page 1 with "to" filter', () => {
-    const state = initialState
+  test('beyond page one', () => {
+    const state = Object.assign({}, initialState, {
+      beyondPageOne: true,
+      validationCount: 30,
+      validatedBlocks: [{ blockNumber: 1, blockHtml: 'test 1' }]
+    })
     const action = {
-      type: 'PAGE_LOAD',
-      addressHash: '1234',
-      beyondPageOne: false,
-      filter: 'to'
+      type: 'RECEIVED_NEW_BLOCK',
+      msg: { blockNumber: 2, blockHtml: 'test 2' }
     }
     const output = reducer(state, action)
 
-    expect(output.addressHash).toBe('1234')
-    expect(output.beyondPageOne).toBe(false)
-    expect(output.filter).toBe('to')
+    expect(output.validationCount).toEqual(31)
+    expect(output.validatedBlocks).toEqual([
+      { blockNumber: 1, blockHtml: 'test 1' }
+    ])
   })
-  test('page 2 with "to" filter', () => {
-    const state = initialState
+})
+
+describe('RECEIVED_NEW_INTERNAL_TRANSACTION_BATCH', () => {
+  test('with new internal transaction', () => {
+    const state = Object.assign({}, initialState, {
+      internalTransactions: [{ internalTransactionHtml: 'test 1' }]
+    })
     const action = {
-      type: 'PAGE_LOAD',
-      addressHash: '1234',
-      beyondPageOne: true,
-      filter: 'to'
+      type: 'RECEIVED_NEW_INTERNAL_TRANSACTION_BATCH',
+      msgs: [{ internalTransactionHtml: 'test 2' }]
     }
     const output = reducer(state, action)
 
-    expect(output.addressHash).toBe('1234')
-    expect(output.beyondPageOne).toBe(true)
-    expect(output.filter).toBe('to')
+    expect(output.internalTransactions).toEqual([
+      { internalTransactionHtml: 'test 2' },
+      { internalTransactionHtml: 'test 1' }
+    ])
   })
-})
-
-test('CHANNEL_DISCONNECTED', () => {
-  const state = initialState
-  const action = {
-    type: 'CHANNEL_DISCONNECTED'
-  }
-  const output = reducer(state, action)
-
-  expect(output.channelDisconnected).toBe(true)
-})
-
-test('RECEIVED_UPDATED_BALANCE', () => {
-  const state = initialState
-  const action = {
-    type: 'RECEIVED_UPDATED_BALANCE',
-    msg: {
-      balance: 'hello world'
+  test('with batch of new internal transactions', () => {
+    const state = Object.assign({}, initialState, {
+      internalTransactions: [{ internalTransactionHtml: 'test 1' }]
+    })
+    const action = {
+      type: 'RECEIVED_NEW_INTERNAL_TRANSACTION_BATCH',
+      msgs: [
+        { internalTransactionHtml: 'test 2' },
+        { internalTransactionHtml: 'test 3' },
+        { internalTransactionHtml: 'test 4' },
+        { internalTransactionHtml: 'test 5' },
+        { internalTransactionHtml: 'test 6' },
+        { internalTransactionHtml: 'test 7' },
+        { internalTransactionHtml: 'test 8' },
+        { internalTransactionHtml: 'test 9' },
+        { internalTransactionHtml: 'test 10' },
+        { internalTransactionHtml: 'test 11' },
+        { internalTransactionHtml: 'test 12' },
+        { internalTransactionHtml: 'test 13' }
+      ]
     }
-  }
-  const output = reducer(state, action)
-
-  expect(output.balance).toBe('hello world')
-})
+    const output = reducer(state, action)
 
-describe('RECEIVED_NEW_PENDING_TRANSACTION', () => {
-  test('single transaction', () => {
-    const state = initialState
+    expect(output.internalTransactions).toEqual([
+      { internalTransactionHtml: 'test 1' }
+    ])
+    expect(output.internalTransactionsBatch).toEqual([
+      { internalTransactionHtml: 'test 13' },
+      { internalTransactionHtml: 'test 12' },
+      { internalTransactionHtml: 'test 11' },
+      { internalTransactionHtml: 'test 10' },
+      { internalTransactionHtml: 'test 9' },
+      { internalTransactionHtml: 'test 8' },
+      { internalTransactionHtml: 'test 7' },
+      { internalTransactionHtml: 'test 6' },
+      { internalTransactionHtml: 'test 5' },
+      { internalTransactionHtml: 'test 4' },
+      { internalTransactionHtml: 'test 3' },
+      { internalTransactionHtml: 'test 2' },
+    ])
+  })
+  test('after batch of new internal transactions', () => {
+    const state = Object.assign({}, initialState, {
+      internalTransactionsBatch: [{ internalTransactionHtml: 'test 1' }]
+    })
     const action = {
-      type: 'RECEIVED_NEW_PENDING_TRANSACTION',
-      msg: {
-        transactionHash: '0x00',
-        transactionHtml: 'test'
-      }
+      type: 'RECEIVED_NEW_INTERNAL_TRANSACTION_BATCH',
+      msgs: [
+        { internalTransactionHtml: 'test 2' }
+      ]
     }
     const output = reducer(state, action)
 
-    expect(output.newPendingTransactions).toEqual(['test'])
-    expect(output.transactionCount).toEqual(null)
+    expect(output.internalTransactionsBatch).toEqual([
+      { internalTransactionHtml: 'test 2' },
+      { internalTransactionHtml: 'test 1' }
+    ])
   })
-  test('single transaction after single transaction', () => {
+  test('when channel has been disconnected', () => {
     const state = Object.assign({}, initialState, {
-      newPendingTransactions: ['test 1']
+      channelDisconnected: true,
+      internalTransactions: [{ internalTransactionHtml: 'test 1' }]
     })
     const action = {
-      type: 'RECEIVED_NEW_PENDING_TRANSACTION',
-      msg: {
-        transactionHash: '0x02',
-        transactionHtml: 'test 2'
-      }
+      type: 'RECEIVED_NEW_INTERNAL_TRANSACTION_BATCH',
+      msgs: [{ internalTransactionHtml: 'test 2' }]
     }
     const output = reducer(state, action)
 
-    expect(output.newPendingTransactions).toEqual(['test 1', 'test 2'])
-    expect(output.pendingTransactionHashes.length).toEqual(1)
+    expect(output.internalTransactions).toEqual([
+      { internalTransactionHtml: 'test 1' }
+    ])
   })
-  test('after disconnection', () => {
+  test('beyond page one', () => {
     const state = Object.assign({}, initialState, {
-      channelDisconnected: true
+      beyondPageOne: true,
+      internalTransactions: [{ internalTransactionHtml: 'test 1' }]
     })
     const action = {
-      type: 'RECEIVED_NEW_PENDING_TRANSACTION',
-      msg: {
-        transactionHash: '0x00',
-        transactionHtml: 'test'
-      }
+      type: 'RECEIVED_NEW_INTERNAL_TRANSACTION_BATCH',
+      msgs: [{ internalTransactionHtml: 'test 2' }]
     }
     const output = reducer(state, action)
 
-    expect(output.newPendingTransactions).toEqual([])
-    expect(output.pendingTransactionHashes).toEqual([])
+    expect(output.internalTransactions).toEqual([
+      { internalTransactionHtml: 'test 1' }
+    ])
   })
-  test('on page 2', () => {
+  test('with filtered out internal transaction', () => {
     const state = Object.assign({}, initialState, {
-      beyondPageOne: true
+      filter: 'to'
     })
     const action = {
-      type: 'RECEIVED_NEW_PENDING_TRANSACTION',
-      msg: {
-        transactionHash: '0x00',
-        transactionHtml: 'test'
-      }
+      type: 'RECEIVED_NEW_INTERNAL_TRANSACTION_BATCH',
+      msgs: [{ internalTransactionHtml: 'test 2' }]
     }
     const output = reducer(state, action)
 
-    expect(output.newPendingTransactions).toEqual([])
-    expect(output.pendingTransactionHashes).toEqual([])
+    expect(output.internalTransactions).toEqual([])
   })
 })
 
-describe('RECEIVED_NEW_TRANSACTION', () => {
-  test('single transaction', () => {
+describe('RECEIVED_NEW_PENDING_TRANSACTION', () => {
+  test('with new pending transaction', () => {
     const state = Object.assign({}, initialState, {
-      addressHash: '0x111'
+      pendingTransactions: [{ transactionHash: 1, transactionHtml: 'test 1' }]
     })
     const action = {
-      type: 'RECEIVED_NEW_TRANSACTION',
-      msg: {
-        transactionHtml: 'test'
-      }
+      type: 'RECEIVED_NEW_PENDING_TRANSACTION',
+      msg: { transactionHash: 2, transactionHtml: 'test 2' }
     }
     const output = reducer(state, action)
 
-    expect(output.newTransactions).toEqual([{ transactionHtml: 'test' }])
-    expect(output.transactionCount).toEqual(null)
+    expect(output.pendingTransactions).toEqual([
+      { transactionHash: 2, transactionHtml: 'test 2' },
+      { transactionHash: 1, transactionHtml: 'test 1' }
+    ])
   })
-  test('single transaction after single transaction', () => {
+  test('when channel has been disconnected', () => {
     const state = Object.assign({}, initialState, {
-      newTransactions: [{ transactionHtml: 'test 1' }]
+      channelDisconnected: true,
+      pendingTransactions: [{ transactionHash: 1, transactionHtml: 'test 1' }]
     })
     const action = {
-      type: 'RECEIVED_NEW_TRANSACTION',
-      msg: {
-        transactionHtml: 'test 2'
-      }
+      type: 'RECEIVED_NEW_PENDING_TRANSACTION',
+      msg: { transactionHash: 2, transactionHtml: 'test 2' }
     }
     const output = reducer(state, action)
 
-    expect(output.newTransactions).toEqual([
-      { transactionHtml: 'test 1' },
-      { transactionHtml: 'test 2' }
+    expect(output.pendingTransactions).toEqual([
+      { transactionHash: 1, transactionHtml: 'test 1' }
     ])
   })
-  test('after disconnection', () => {
+  test('beyond page one', () => {
     const state = Object.assign({}, initialState, {
-      channelDisconnected: true
+      beyondPageOne: true,
+      pendingTransactions: [{ transactionHash: 1, transactionHtml: 'test 1' }]
     })
     const action = {
-      type: 'RECEIVED_NEW_TRANSACTION',
-      msg: {
-        transactionHtml: 'test'
-      }
+      type: 'RECEIVED_NEW_PENDING_TRANSACTION',
+      msg: { transactionHash: 2, transactionHtml: 'test 2' }
     }
     const output = reducer(state, action)
 
-    expect(output.newTransactions).toEqual([])
+    expect(output.pendingTransactions).toEqual([
+      { transactionHash: 1, transactionHtml: 'test 1' }
+    ])
   })
-  test('on page 2', () => {
+  test('with filtered out pending transaction', () => {
     const state = Object.assign({}, initialState, {
-      beyondPageOne: true,
-      transactionCount: 1,
-      addressHash: '0x111'
+      filter: 'to'
     })
     const action = {
-      type: 'RECEIVED_NEW_TRANSACTION',
-      msg: {
-        transactionHtml: 'test'
-      }
+      type: 'RECEIVED_NEW_PENDING_TRANSACTION',
+      msg: { transactionHash: 2, transactionHtml: 'test 2' }
     }
     const output = reducer(state, action)
 
-    expect(output.newTransactions).toEqual([])
-    expect(output.transactionCount).toEqual(1)
+    expect(output.pendingTransactions).toEqual([])
   })
-  test('transaction from current address with "from" filter', () => {
+})
+
+describe('RECEIVED_NEW_TRANSACTION', () => {
+  test('with new transaction', () => {
     const state = Object.assign({}, initialState, {
-      addressHash: '1234',
-      filter: 'from'
+      pendingTransactions: [{ transactionHash: 2, transactionHtml: 'test' }],
+      transactions: [{ transactionHash: 1, transactionHtml: 'test 1' }]
     })
     const action = {
       type: 'RECEIVED_NEW_TRANSACTION',
-      msg: {
-        fromAddressHash: '1234',
-        transactionHtml: 'test'
-      }
+      msg: { transactionHash: 2, transactionHtml: 'test 2' }
     }
     const output = reducer(state, action)
 
-    expect(output.newTransactions).toEqual([
-      { fromAddressHash: '1234', transactionHtml: 'test' }
+    expect(output.pendingTransactions).toEqual([
+      { transactionHash: 2, transactionHtml: 'test 2', validated: true }
+    ])
+    expect(output.transactions).toEqual([
+      { transactionHash: 2, transactionHtml: 'test 2' },
+      { transactionHash: 1, transactionHtml: 'test 1' }
     ])
   })
-  test('transaction from current address with "to" filter', () => {
+  test('when channel has been disconnected', () => {
     const state = Object.assign({}, initialState, {
-      addressHash: '1234',
-      filter: 'to'
+      channelDisconnected: true,
+      pendingTransactions: [{ transactionHash: 2, transactionHtml: 'test' }],
+      transactions: [{ transactionHash: 1, transactionHtml: 'test 1' }]
     })
     const action = {
       type: 'RECEIVED_NEW_TRANSACTION',
-      msg: {
-        fromAddressHash: '1234',
-        transactionHtml: 'test'
-      }
+      msg: { transactionHash: 2, transactionHtml: 'test 2' }
     }
     const output = reducer(state, action)
 
-    expect(output.newTransactions).toEqual([])
+    expect(output.pendingTransactions).toEqual([
+      { transactionHash: 2, transactionHtml: 'test' }
+    ])
+    expect(output.transactions).toEqual([
+      { transactionHash: 1, transactionHtml: 'test 1' }
+    ])
   })
-  test('transaction to current address with "to" filter', () => {
+  test('beyond page one', () => {
     const state = Object.assign({}, initialState, {
-      addressHash: '1234',
-      filter: 'to'
+      beyondPageOne: true,
+      transactions: [{ transactionHash: 1, transactionHtml: 'test 1' }]
     })
     const action = {
       type: 'RECEIVED_NEW_TRANSACTION',
-      msg: {
-        toAddressHash: '1234',
-        transactionHtml: 'test'
-      }
+      msg: { transactionHash: 2, transactionHtml: 'test 2' }
     }
     const output = reducer(state, action)
 
-    expect(output.newTransactions).toEqual([
-      { toAddressHash: '1234', transactionHtml: 'test' }
+    expect(output.pendingTransactions).toEqual([])
+    expect(output.transactions).toEqual([
+      { transactionHash: 1, transactionHtml: 'test 1' }
     ])
   })
-  test('transaction to current address with "from" filter', () => {
+  test('with filtered out transaction', () => {
     const state = Object.assign({}, initialState, {
-      addressHash: '1234',
-      filter: 'from'
+      filter: 'to'
     })
     const action = {
       type: 'RECEIVED_NEW_TRANSACTION',
-      msg: {
-        toAddressHash: '1234',
-        transactionHtml: 'test'
-      }
+      msg: { transactionHash: 2, transactionHtml: 'test 2' }
     }
     const output = reducer(state, action)
 
-    expect(output.newTransactions).toEqual([])
+    expect(output.transactions).toEqual([])
   })
-  test('single transaction collated from pending', () => {
-    const state = initialState
+})
+
+describe('RECEIVED_NEXT_TRANSACTIONS_PAGE', () => {
+  test('with new transaction page', () => {
+    const state = Object.assign({}, initialState, {
+      loadingNextPage: true,
+      nextPageUrl: '1',
+      transactions: [{ transactionHash: 1, transactionHtml: 'test 1' }]
+    })
     const action = {
-      type: 'RECEIVED_NEW_TRANSACTION',
+      type: 'RECEIVED_NEXT_TRANSACTIONS_PAGE',
       msg: {
-        transactionHash: '0x00',
-        transactionHtml: 'test'
+        nextPageUrl: '2',
+        transactions: [{ transactionHash: 2, transactionHtml: 'test 2' }]
       }
     }
     const output = reducer(state, action)
 
-    expect(output.newTransactions).toEqual([
-      { transactionHash: '0x00', transactionHtml: 'test' }
+    expect(output.loadingNextPage).toEqual(false)
+    expect(output.nextPageUrl).toEqual('2')
+    expect(output.transactions).toEqual([
+      { transactionHash: 1, transactionHtml: 'test 1' },
+      { transactionHash: 2, transactionHtml: 'test 2' }
     ])
-    expect(output.transactionCount).toEqual(null)
   })
 })

apps/block_scout_web/assets/__tests__/pages/blocks.js

@@ -1,4 +1,4 @@
-import { reducer, initialState } from '../../js/pages/block'
+import { reducer, initialState } from '../../js/pages/blocks'
 
 test('CHANNEL_DISCONNECTED', () => {
   const state = initialState

apps/block_scout_web/assets/__tests__/pages/pending_transactions.js

@@ -0,0 +1,232 @@
+import { reducer, initialState } from '../../js/pages/pending_transactions'
+
+test('CHANNEL_DISCONNECTED', () => {
+  const state = initialState
+  const action = {
+    type: 'CHANNEL_DISCONNECTED'
+  }
+  const output = reducer(state, action)
+
+  expect(output.channelDisconnected).toBe(true)
+})
+
+describe('RECEIVED_NEW_PENDING_TRANSACTION_BATCH', () => {
+  test('single transaction', () => {
+    const state = initialState
+    const action = {
+      type: 'RECEIVED_NEW_PENDING_TRANSACTION_BATCH',
+      msgs: [{
+        transactionHash: '0x00',
+        transactionHtml: 'test'
+      }]
+    }
+    const output = reducer(state, action)
+
+    expect(output.newPendingTransactions).toEqual(['test'])
+    expect(output.newPendingTransactionHashesBatch.length).toEqual(0)
+    expect(output.pendingTransactionCount).toEqual(1)
+  })
+  test('large batch of transactions', () => {
+    const state = initialState
+    const action = {
+      type: 'RECEIVED_NEW_PENDING_TRANSACTION_BATCH',
+      msgs: [{
+        transactionHash: '0x01',
+        transactionHtml: 'test 1'
+      },{
+        transactionHash: '0x02',
+        transactionHtml: 'test 2'
+      },{
+        transactionHash: '0x03',
+        transactionHtml: 'test 3'
+      },{
+        transactionHash: '0x04',
+        transactionHtml: 'test 4'
+      },{
+        transactionHash: '0x05',
+        transactionHtml: 'test 5'
+      },{
+        transactionHash: '0x06',
+        transactionHtml: 'test 6'
+      },{
+        transactionHash: '0x07',
+        transactionHtml: 'test 7'
+      },{
+        transactionHash: '0x08',
+        transactionHtml: 'test 8'
+      },{
+        transactionHash: '0x09',
+        transactionHtml: 'test 9'
+      },{
+        transactionHash: '0x10',
+        transactionHtml: 'test 10'
+      },{
+        transactionHash: '0x11',
+        transactionHtml: 'test 11'
+      }]
+    }
+    const output = reducer(state, action)
+
+    expect(output.newPendingTransactions).toEqual([])
+    expect(output.newPendingTransactionHashesBatch.length).toEqual(11)
+    expect(output.pendingTransactionCount).toEqual(11)
+  })
+  test('single transaction after single transaction', () => {
+    const state = Object.assign({}, initialState, {
+      newPendingTransactions: ['test 1'],
+      pendingTransactionCount: 1
+    })
+    const action = {
+      type: 'RECEIVED_NEW_PENDING_TRANSACTION_BATCH',
+      msgs: [{
+        transactionHash: '0x02',
+        transactionHtml: 'test 2'
+      }]
+    }
+    const output = reducer(state, action)
+
+    expect(output.newPendingTransactions).toEqual(['test 1', 'test 2'])
+    expect(output.newPendingTransactionHashesBatch.length).toEqual(0)
+    expect(output.pendingTransactionCount).toEqual(2)
+  })
+  test('single transaction after large batch of transactions', () => {
+    const state = Object.assign({}, initialState, {
+      newPendingTransactionHashesBatch: ['1', '2', '3', '4', '5', '6', '7', '8', '9', '10', '11']
+    })
+    const action = {
+      type: 'RECEIVED_NEW_PENDING_TRANSACTION_BATCH',
+      msgs: [{
+        transactionHash: '0x12',
+        transactionHtml: 'test 12'
+      }]
+    }
+    const output = reducer(state, action)
+
+    expect(output.newPendingTransactions).toEqual([])
+    expect(output.newPendingTransactionHashesBatch.length).toEqual(12)
+  })
+  test('large batch of transactions after large batch of transactions', () => {
+    const state = Object.assign({}, initialState, {
+      newPendingTransactionHashesBatch: ['1', '2', '3', '4', '5', '6', '7', '8', '9', '10', '11']
+    })
+    const action = {
+      type: 'RECEIVED_NEW_PENDING_TRANSACTION_BATCH',
+      msgs: [{
+        transactionHash: '0x12',
+        transactionHtml: 'test 12'
+      },{
+        transactionHash: '0x13',
+        transactionHtml: 'test 13'
+      },{
+        transactionHash: '0x14',
+        transactionHtml: 'test 14'
+      },{
+        transactionHash: '0x15',
+        transactionHtml: 'test 15'
+      },{
+        transactionHash: '0x16',
+        transactionHtml: 'test 16'
+      },{
+        transactionHash: '0x17',
+        transactionHtml: 'test 17'
+      },{
+        transactionHash: '0x18',
+        transactionHtml: 'test 18'
+      },{
+        transactionHash: '0x19',
+        transactionHtml: 'test 19'
+      },{
+        transactionHash: '0x20',
+        transactionHtml: 'test 20'
+      },{
+        transactionHash: '0x21',
+        transactionHtml: 'test 21'
+      },{
+        transactionHash: '0x22',
+        transactionHtml: 'test 22'
+      }]
+    }
+    const output = reducer(state, action)
+
+    expect(output.newPendingTransactions).toEqual([])
+    expect(output.newPendingTransactionHashesBatch.length).toEqual(22)
+  })
+  test('after disconnection', () => {
+    const state = Object.assign({}, initialState, {
+      channelDisconnected: true
+    })
+    const action = {
+      type: 'RECEIVED_NEW_PENDING_TRANSACTION_BATCH',
+      msgs: [{
+        transactionHash: '0x00',
+        transactionHtml: 'test'
+      }]
+    }
+    const output = reducer(state, action)
+
+    expect(output.newPendingTransactions).toEqual([])
+  })
+  test('on page 2+', () => {
+    const state = Object.assign({}, initialState, {
+      beyondPageOne: true,
+      pendingTransactionCount: 1
+    })
+    const action = {
+      type: 'RECEIVED_NEW_PENDING_TRANSACTION_BATCH',
+      msgs: [{
+        transactionHash: '0x00',
+        transactionHtml: 'test'
+      }]
+    }
+    const output = reducer(state, action)
+
+    expect(output.newPendingTransactions).toEqual([])
+    expect(output.pendingTransactionCount).toEqual(2)
+  })
+})
+
+describe('RECEIVED_NEW_TRANSACTION', () => {
+  test('single transaction collated', () => {
+    const state = { ...initialState, pendingTransactionCount: 2 }
+    const action = {
+      type: 'RECEIVED_NEW_TRANSACTION',
+      msg: {
+        transactionHash: '0x00'
+      }
+    }
+    const output = reducer(state, action)
+
+    expect(output.pendingTransactionCount).toBe(1)
+    expect(output.newTransactionHashes).toEqual(['0x00'])
+  })
+  test('single transaction collated after batch', () => {
+    const state = Object.assign({}, initialState, {
+      newPendingTransactionHashesBatch: ['0x01', '2', '3', '4', '5', '6', '7', '8', '9', '10', '11']
+    })
+    const action = {
+      type: 'RECEIVED_NEW_TRANSACTION',
+      msg: {
+        transactionHash: '0x01'
+      }
+    }
+    const output = reducer(state, action)
+
+    expect(output.newPendingTransactionHashesBatch.length).toEqual(10)
+    expect(output.newPendingTransactionHashesBatch).not.toContain('0x01')
+  })
+  test('on page 2+', () => {
+    const state = Object.assign({}, initialState, {
+      beyondPageOne: true,
+      pendingTransactionCount: 2
+    })
+    const action = {
+      type: 'RECEIVED_NEW_TRANSACTION',
+      msg: {
+        transactionHash: '0x01'
+      }
+    }
+    const output = reducer(state, action)
+
+    expect(output.pendingTransactionCount).toEqual(1)
+  })
+})

apps/block_scout_web/assets/__tests__/pages/transaction.js

@@ -1,16 +1,5 @@
 import { reducer, initialState } from '../../js/pages/transaction'
 
-test('CHANNEL_DISCONNECTED', () => {
-  const state = initialState
-  const action = {
-    type: 'CHANNEL_DISCONNECTED'
-  }
-  const output = reducer(state, action)
-
-  expect(output.channelDisconnected).toBe(true)
-  expect(output.batchCountAccumulator).toBe(0)
-})
-
 test('RECEIVED_NEW_BLOCK', () => {
   const state = { ...initialState, blockNumber: 1 }
   const action = {
@@ -23,374 +12,3 @@ test('RECEIVED_NEW_BLOCK', () => {
 
   expect(output.confirmations).toBe(4)
 })
-
-describe('RECEIVED_NEW_PENDING_TRANSACTION_BATCH', () => {
-  test('single transaction', () => {
-    const state = initialState
-    const action = {
-      type: 'RECEIVED_NEW_PENDING_TRANSACTION_BATCH',
-      msgs: [{
-        transactionHash: '0x00',
-        transactionHtml: 'test'
-      }]
-    }
-    const output = reducer(state, action)
-
-    expect(output.newPendingTransactions).toEqual(['test'])
-    expect(output.newPendingTransactionHashesBatch.length).toEqual(0)
-    expect(output.pendingTransactionCount).toEqual(1)
-  })
-  test('large batch of transactions', () => {
-    const state = initialState
-    const action = {
-      type: 'RECEIVED_NEW_PENDING_TRANSACTION_BATCH',
-      msgs: [{
-        transactionHash: '0x01',
-        transactionHtml: 'test 1'
-      },{
-        transactionHash: '0x02',
-        transactionHtml: 'test 2'
-      },{
-        transactionHash: '0x03',
-        transactionHtml: 'test 3'
-      },{
-        transactionHash: '0x04',
-        transactionHtml: 'test 4'
-      },{
-        transactionHash: '0x05',
-        transactionHtml: 'test 5'
-      },{
-        transactionHash: '0x06',
-        transactionHtml: 'test 6'
-      },{
-        transactionHash: '0x07',
-        transactionHtml: 'test 7'
-      },{
-        transactionHash: '0x08',
-        transactionHtml: 'test 8'
-      },{
-        transactionHash: '0x09',
-        transactionHtml: 'test 9'
-      },{
-        transactionHash: '0x10',
-        transactionHtml: 'test 10'
-      },{
-        transactionHash: '0x11',
-        transactionHtml: 'test 11'
-      }]
-    }
-    const output = reducer(state, action)
-
-    expect(output.newPendingTransactions).toEqual([])
-    expect(output.newPendingTransactionHashesBatch.length).toEqual(11)
-    expect(output.pendingTransactionCount).toEqual(11)
-  })
-  test('single transaction after single transaction', () => {
-    const state = Object.assign({}, initialState, {
-      newPendingTransactions: ['test 1'],
-      pendingTransactionCount: 1
-    })
-    const action = {
-      type: 'RECEIVED_NEW_PENDING_TRANSACTION_BATCH',
-      msgs: [{
-        transactionHash: '0x02',
-        transactionHtml: 'test 2'
-      }]
-    }
-    const output = reducer(state, action)
-
-    expect(output.newPendingTransactions).toEqual(['test 1', 'test 2'])
-    expect(output.newPendingTransactionHashesBatch.length).toEqual(0)
-    expect(output.pendingTransactionCount).toEqual(2)
-  })
-  test('single transaction after large batch of transactions', () => {
-    const state = Object.assign({}, initialState, {
-      newPendingTransactionHashesBatch: ['1', '2', '3', '4', '5', '6', '7', '8', '9', '10', '11']
-    })
-    const action = {
-      type: 'RECEIVED_NEW_PENDING_TRANSACTION_BATCH',
-      msgs: [{
-        transactionHash: '0x12',
-        transactionHtml: 'test 12'
-      }]
-    }
-    const output = reducer(state, action)
-
-    expect(output.newPendingTransactions).toEqual([])
-    expect(output.newPendingTransactionHashesBatch.length).toEqual(12)
-  })
-  test('large batch of transactions after large batch of transactions', () => {
-    const state = Object.assign({}, initialState, {
-      newPendingTransactionHashesBatch: ['1', '2', '3', '4', '5', '6', '7', '8', '9', '10', '11']
-    })
-    const action = {
-      type: 'RECEIVED_NEW_PENDING_TRANSACTION_BATCH',
-      msgs: [{
-        transactionHash: '0x12',
-        transactionHtml: 'test 12'
-      },{
-        transactionHash: '0x13',
-        transactionHtml: 'test 13'
-      },{
-        transactionHash: '0x14',
-        transactionHtml: 'test 14'
-      },{
-        transactionHash: '0x15',
-        transactionHtml: 'test 15'
-      },{
-        transactionHash: '0x16',
-        transactionHtml: 'test 16'
-      },{
-        transactionHash: '0x17',
-        transactionHtml: 'test 17'
-      },{
-        transactionHash: '0x18',
-        transactionHtml: 'test 18'
-      },{
-        transactionHash: '0x19',
-        transactionHtml: 'test 19'
-      },{
-        transactionHash: '0x20',
-        transactionHtml: 'test 20'
-      },{
-        transactionHash: '0x21',
-        transactionHtml: 'test 21'
-      },{
-        transactionHash: '0x22',
-        transactionHtml: 'test 22'
-      }]
-    }
-    const output = reducer(state, action)
-
-    expect(output.newPendingTransactions).toEqual([])
-    expect(output.newPendingTransactionHashesBatch.length).toEqual(22)
-  })
-  test('after disconnection', () => {
-    const state = Object.assign({}, initialState, {
-      channelDisconnected: true
-    })
-    const action = {
-      type: 'RECEIVED_NEW_PENDING_TRANSACTION_BATCH',
-      msgs: [{
-        transactionHash: '0x00',
-        transactionHtml: 'test'
-      }]
-    }
-    const output = reducer(state, action)
-
-    expect(output.newPendingTransactions).toEqual([])
-    expect(output.batchCountAccumulator).toEqual(0)
-  })
-  test('on page 2+', () => {
-    const state = Object.assign({}, initialState, {
-      beyondPageOne: true,
-      pendingTransactionCount: 1
-    })
-    const action = {
-      type: 'RECEIVED_NEW_PENDING_TRANSACTION_BATCH',
-      msgs: [{
-        transactionHash: '0x00',
-        transactionHtml: 'test'
-      }]
-    }
-    const output = reducer(state, action)
-
-    expect(output.newPendingTransactions).toEqual([])
-    expect(output.batchCountAccumulator).toEqual(0)
-    expect(output.pendingTransactionCount).toEqual(2)
-  })
-})
-
-describe('RECEIVED_NEW_TRANSACTION', () => {
-  test('single transaction collated', () => {
-    const state = { ...initialState, pendingTransactionCount: 2 }
-    const action = {
-      type: 'RECEIVED_NEW_TRANSACTION',
-      msg: {
-        transactionHash: '0x00'
-      }
-    }
-    const output = reducer(state, action)
-
-    expect(output.pendingTransactionCount).toBe(1)
-    expect(output.newTransactionHashes).toEqual(['0x00'])
-  })
-  test('single transaction collated after batch', () => {
-    const state = Object.assign({}, initialState, {
-      newPendingTransactionHashesBatch: ['0x01', '2', '3', '4', '5', '6', '7', '8', '9', '10', '11']
-    })
-    const action = {
-      type: 'RECEIVED_NEW_TRANSACTION',
-      msg: {
-        transactionHash: '0x01'
-      }
-    }
-    const output = reducer(state, action)
-
-    expect(output.newPendingTransactionHashesBatch.length).toEqual(10)
-    expect(output.newPendingTransactionHashesBatch).not.toContain('0x01')
-  })
-  test('on page 2+', () => {
-    const state = Object.assign({}, initialState, {
-      beyondPageOne: true,
-      pendingTransactionCount: 2
-    })
-    const action = {
-      type: 'RECEIVED_NEW_TRANSACTION',
-      msg: {
-        transactionHash: '0x01'
-      }
-    }
-    const output = reducer(state, action)
-
-    expect(output.pendingTransactionCount).toEqual(1)
-  })
-})
-
-describe('RECEIVED_NEW_TRANSACTION_BATCH', () => {
-  test('single transaction', () => {
-    const state = initialState
-    const action = {
-      type: 'RECEIVED_NEW_TRANSACTION_BATCH',
-      msgs: [{
-        transactionHtml: 'test'
-      }]
-    }
-    const output = reducer(state, action)
-
-    expect(output.newTransactions).toEqual(['test'])
-    expect(output.batchCountAccumulator).toEqual(0)
-    expect(output.transactionCount).toEqual(1)
-  })
-  test('large batch of transactions', () => {
-    const state = initialState
-    const action = {
-      type: 'RECEIVED_NEW_TRANSACTION_BATCH',
-      msgs: [{
-        transactionHtml: 'test 1'
-      },{
-        transactionHtml: 'test 2'
-      },{
-        transactionHtml: 'test 3'
-      },{
-        transactionHtml: 'test 4'
-      },{
-        transactionHtml: 'test 5'
-      },{
-        transactionHtml: 'test 6'
-      },{
-        transactionHtml: 'test 7'
-      },{
-        transactionHtml: 'test 8'
-      },{
-        transactionHtml: 'test 9'
-      },{
-        transactionHtml: 'test 10'
-      },{
-        transactionHtml: 'test 11'
-      }]
-    }
-    const output = reducer(state, action)
-
-    expect(output.newTransactions).toEqual([])
-    expect(output.batchCountAccumulator).toEqual(11)
-    expect(output.transactionCount).toEqual(11)
-  })
-  test('single transaction after single transaction', () => {
-    const state = Object.assign({}, initialState, {
-      newTransactions: ['test 1']
-    })
-    const action = {
-      type: 'RECEIVED_NEW_TRANSACTION_BATCH',
-      msgs: [{
-        transactionHtml: 'test 2'
-      }]
-    }
-    const output = reducer(state, action)
-
-    expect(output.newTransactions).toEqual(['test 1', 'test 2'])
-    expect(output.batchCountAccumulator).toEqual(0)
-  })
-  test('single transaction after large batch of transactions', () => {
-    const state = Object.assign({}, initialState, {
-      batchCountAccumulator: 11
-    })
-    const action = {
-      type: 'RECEIVED_NEW_TRANSACTION_BATCH',
-      msgs: [{
-        transactionHtml: 'test 12'
-      }]
-    }
-    const output = reducer(state, action)
-
-    expect(output.newTransactions).toEqual([])
-    expect(output.batchCountAccumulator).toEqual(12)
-  })
-  test('large batch of transactions after large batch of transactions', () => {
-    const state = Object.assign({}, initialState, {
-      batchCountAccumulator: 11
-    })
-    const action = {
-      type: 'RECEIVED_NEW_TRANSACTION_BATCH',
-      msgs: [{
-        transactionHtml: 'test 12'
-      },{
-        transactionHtml: 'test 13'
-      },{
-        transactionHtml: 'test 14'
-      },{
-        transactionHtml: 'test 15'
-      },{
-        transactionHtml: 'test 16'
-      },{
-        transactionHtml: 'test 17'
-      },{
-        transactionHtml: 'test 18'
-      },{
-        transactionHtml: 'test 19'
-      },{
-        transactionHtml: 'test 20'
-      },{
-        transactionHtml: 'test 21'
-      },{
-        transactionHtml: 'test 22'
-      }]
-    }
-    const output = reducer(state, action)
-
-    expect(output.newTransactions).toEqual([])
-    expect(output.batchCountAccumulator).toEqual(22)
-  })
-  test('after disconnection', () => {
-    const state = Object.assign({}, initialState, {
-      channelDisconnected: true
-    })
-    const action = {
-      type: 'RECEIVED_NEW_TRANSACTION_BATCH',
-      msgs: [{
-        transactionHtml: 'test'
-      }]
-    }
-    const output = reducer(state, action)
-
-    expect(output.newTransactions).toEqual([])
-    expect(output.batchCountAccumulator).toEqual(0)
-  })
-  test('on page 2+', () => {
-    const state = Object.assign({}, initialState, {
-      beyondPageOne: true,
-      transactionCount: 1
-    })
-    const action = {
-      type: 'RECEIVED_NEW_TRANSACTION_BATCH',
-      msgs: [{
-        transactionHtml: 'test'
-      }]
-    }
-    const output = reducer(state, action)
-
-    expect(output.newTransactions).toEqual([])
-    expect(output.batchCountAccumulator).toEqual(0)
-    expect(output.transactionCount).toEqual(2)
-  })
-})

apps/block_scout_web/assets/__tests__/pages/transactions.js

@@ -0,0 +1,160 @@
+import { reducer, initialState } from '../../js/pages/transactions'
+
+test('CHANNEL_DISCONNECTED', () => {
+  const state = initialState
+  const action = {
+    type: 'CHANNEL_DISCONNECTED'
+  }
+  const output = reducer(state, action)
+
+  expect(output.channelDisconnected).toBe(true)
+  expect(output.batchCountAccumulator).toBe(0)
+})
+
+describe('RECEIVED_NEW_TRANSACTION_BATCH', () => {
+  test('single transaction', () => {
+    const state = initialState
+    const action = {
+      type: 'RECEIVED_NEW_TRANSACTION_BATCH',
+      msgs: [{
+        transactionHtml: 'test'
+      }]
+    }
+    const output = reducer(state, action)
+
+    expect(output.newTransactions).toEqual(['test'])
+    expect(output.batchCountAccumulator).toEqual(0)
+    expect(output.transactionCount).toEqual(1)
+  })
+  test('large batch of transactions', () => {
+    const state = initialState
+    const action = {
+      type: 'RECEIVED_NEW_TRANSACTION_BATCH',
+      msgs: [{
+        transactionHtml: 'test 1'
+      },{
+        transactionHtml: 'test 2'
+      },{
+        transactionHtml: 'test 3'
+      },{
+        transactionHtml: 'test 4'
+      },{
+        transactionHtml: 'test 5'
+      },{
+        transactionHtml: 'test 6'
+      },{
+        transactionHtml: 'test 7'
+      },{
+        transactionHtml: 'test 8'
+      },{
+        transactionHtml: 'test 9'
+      },{
+        transactionHtml: 'test 10'
+      },{
+        transactionHtml: 'test 11'
+      }]
+    }
+    const output = reducer(state, action)
+
+    expect(output.newTransactions).toEqual([])
+    expect(output.batchCountAccumulator).toEqual(11)
+    expect(output.transactionCount).toEqual(11)
+  })
+  test('single transaction after single transaction', () => {
+    const state = Object.assign({}, initialState, {
+      newTransactions: ['test 1']
+    })
+    const action = {
+      type: 'RECEIVED_NEW_TRANSACTION_BATCH',
+      msgs: [{
+        transactionHtml: 'test 2'
+      }]
+    }
+    const output = reducer(state, action)
+
+    expect(output.newTransactions).toEqual(['test 1', 'test 2'])
+    expect(output.batchCountAccumulator).toEqual(0)
+  })
+  test('single transaction after large batch of transactions', () => {
+    const state = Object.assign({}, initialState, {
+      batchCountAccumulator: 11
+    })
+    const action = {
+      type: 'RECEIVED_NEW_TRANSACTION_BATCH',
+      msgs: [{
+        transactionHtml: 'test 12'
+      }]
+    }
+    const output = reducer(state, action)
+
+    expect(output.newTransactions).toEqual([])
+    expect(output.batchCountAccumulator).toEqual(12)
+  })
+  test('large batch of transactions after large batch of transactions', () => {
+    const state = Object.assign({}, initialState, {
+      batchCountAccumulator: 11
+    })
+    const action = {
+      type: 'RECEIVED_NEW_TRANSACTION_BATCH',
+      msgs: [{
+        transactionHtml: 'test 12'
+      },{
+        transactionHtml: 'test 13'
+      },{
+        transactionHtml: 'test 14'
+      },{
+        transactionHtml: 'test 15'
+      },{
+        transactionHtml: 'test 16'
+      },{
+        transactionHtml: 'test 17'
+      },{
+        transactionHtml: 'test 18'
+      },{
+        transactionHtml: 'test 19'
+      },{
+        transactionHtml: 'test 20'
+      },{
+        transactionHtml: 'test 21'
+      },{
+        transactionHtml: 'test 22'
+      }]
+    }
+    const output = reducer(state, action)
+
+    expect(output.newTransactions).toEqual([])
+    expect(output.batchCountAccumulator).toEqual(22)
+  })
+  test('after disconnection', () => {
+    const state = Object.assign({}, initialState, {
+      channelDisconnected: true
+    })
+    const action = {
+      type: 'RECEIVED_NEW_TRANSACTION_BATCH',
+      msgs: [{
+        transactionHtml: 'test'
+      }]
+    }
+    const output = reducer(state, action)
+
+    expect(output.newTransactions).toEqual([])
+    expect(output.batchCountAccumulator).toEqual(0)
+  })
+  test('on page 2+', () => {
+    const state = Object.assign({}, initialState, {
+      beyondPageOne: true,
+      transactionCount: 1
+    })
+    const action = {
+      type: 'RECEIVED_NEW_TRANSACTION_BATCH',
+      msgs: [{
+        transactionHtml: 'test'
+      }]
+    }
+    const output = reducer(state, action)
+
+    expect(output.newTransactions).toEqual([])
+    expect(output.batchCountAccumulator).toEqual(0)
+    expect(output.transactionCount).toEqual(2)
+  })
+})

apps/block_scout_web/assets/js/app.js

@@ -20,6 +20,13 @@ import 'bootstrap'
 
 import './locale'
 
+import './pages/address'
+import './pages/blocks'
+import './pages/chain'
+import './pages/pending_transactions'
+import './pages/transaction'
+import './pages/transactions'
+
 import './lib/clipboard_buttons'
 import './lib/currency'
 import './lib/from_now'
@@ -37,8 +44,3 @@ import './lib/token_balance_dropdown_search'
 import './lib/token_transfers_toggle'
 import './lib/tooltip'
 import './lib/try_api'
-
-import './pages/address'
-import './pages/block'
-import './pages/chain'
-import './pages/transaction'

apps/block_scout_web/assets/js/lib/from_now.js

@@ -8,8 +8,9 @@ moment.relativeTimeThreshold('m', 60)
 moment.relativeTimeThreshold('s', 60)
 moment.relativeTimeThreshold('ss', 1)
 
-export function updateAllAges () {
-  $('[data-from-now]').each((i, el) => tryUpdateAge(el))
+export function updateAllAges ($container = $(document)) {
+  $container.find('[data-from-now]').each((i, el) => tryUpdateAge(el))
+  return $container
 }
 function tryUpdateAge (el) {
   if (!el.dataset.fromNow) return

apps/block_scout_web/assets/js/pages/address.js

@@ -4,47 +4,48 @@ import URI from 'urijs'
 import humps from 'humps'
 import numeral from 'numeral'
 import socket from '../socket'
-import { batchChannel, initRedux, slideDownPrepend, slideUpRemove } from '../utils'
-import { updateAllAges } from '../lib/from_now'
+import { createStore, connectElements, batchChannel, listMorph, onScrollBottom } from '../utils'
 import { updateAllCalculatedUsdValues } from '../lib/currency.js'
 import { loadTokenBalanceDropdown } from '../lib/token_balance_dropdown'
 
 const BATCH_THRESHOLD = 10
+const TRANSACTION_VALIDATED_MOVE_DELAY = 1000
 
 export const initialState = {
-  addressHash: null,
-  balance: null,
-  batchCountAccumulator: 0,
-  beyondPageOne: null,
   channelDisconnected: false,
+
+  addressHash: null,
   filter: null,
-  newBlock: null,
-  newInternalTransactions: [],
-  newPendingTransactions: [],
-  newTransactions: [],
-  pendingTransactionHashes: [],
+
+  balance: null,
   transactionCount: null,
-  validationCount: null
+  validationCount: null,
+
+  pendingTransactions: [],
+  transactions: [],
+  internalTransactions: [],
+  internalTransactionsBatch: [],
+  validatedBlocks: [],
+
+  loadingNextPage: false,
+  pagingError: false,
+  nextPageUrl: null,
+
+  beyondPageOne: null
 }
 
 export function reducer (state = initialState, action) {
   switch (action.type) {
-    case 'PAGE_LOAD': {
-      return Object.assign({}, state, {
-        addressHash: action.addressHash,
-        beyondPageOne: action.beyondPageOne,
-        filter: action.filter,
-        pendingTransactionHashes: action.pendingTransactionHashes,
-        transactionCount: numeral(action.transactionCount).value(),
-        validationCount: action.validationCount ? numeral(action.validationCount).value() : null
-      })
+    case 'PAGE_LOAD':
+    case 'ELEMENTS_LOAD': {
+      return Object.assign({}, state, _.omit(action, 'type'))
     }
     case 'CHANNEL_DISCONNECTED': {
       if (state.beyondPageOne) return state
 
       return Object.assign({}, state, {
         channelDisconnected: true,
-        batchCountAccumulator: 0
+        internalTransactionsBatch: []
       })
     }
     case 'RECEIVED_NEW_BLOCK': {
@@ -54,7 +55,10 @@ export function reducer (state = initialState, action) {
 
       if (state.beyondPageOne) return Object.assign({}, state, { validationCount })
       return Object.assign({}, state, {
-        newBlock: action.msg.blockHtml,
+        validatedBlocks: [
+          action.msg,
+          ...state.validatedBlocks
+        ],
         validationCount
       })
     }
@@ -68,16 +72,19 @@ export function reducer (state = initialState, action) {
           (state.filter === 'from' && fromAddressHash === state.addressHash)
         ))
 
-      if (!state.batchCountAccumulator && incomingInternalTransactions.length < BATCH_THRESHOLD) {
+      if (!state.internalTransactionsBatch.length && incomingInternalTransactions.length < BATCH_THRESHOLD) {
         return Object.assign({}, state, {
-          newInternalTransactions: [
-            ...state.newInternalTransactions,
-            ..._.map(incomingInternalTransactions, 'internalTransactionHtml')
+          internalTransactions: [
+            ...incomingInternalTransactions.reverse(),
+            ...state.internalTransactions
           ]
         })
       } else {
         return Object.assign({}, state, {
-          batchCountAccumulator: state.batchCountAccumulator + incomingInternalTransactions.length
+          internalTransactionsBatch: [
+            ...incomingInternalTransactions.reverse(),
+            ...state.internalTransactionsBatch
+          ]
         })
       }
     }
@@ -90,16 +97,17 @@ export function reducer (state = initialState, action) {
       }
 
       return Object.assign({}, state, {
-        newPendingTransactions: [
-          ...state.newPendingTransactions,
-          action.msg.transactionHtml
-        ],
-        pendingTransactionHashes: [
-          ...state.pendingTransactionHashes,
-          action.msg.transactionHash
+        pendingTransactions: [
+          action.msg,
+          ...state.pendingTransactions
         ]
       })
     }
+    case 'REMOVE_PENDING_TRANSACTION': {
+      return Object.assign({}, state, {
+        pendingTransactions: state.pendingTransactions.filter((transaction) => action.msg.transactionHash !== transaction.transactionHash)
+      })
+    }
     case 'RECEIVED_NEW_TRANSACTION': {
       if (state.channelDisconnected) return state
 
@@ -111,15 +119,12 @@ export function reducer (state = initialState, action) {
         return Object.assign({}, state, { transactionCount })
       }
 
-      const updatedPendingTransactionHashes =
-        _.without(state.pendingTransactionHashes, action.msg.transactionHash)
-
       return Object.assign({}, state, {
-        newTransactions: [
-          ...state.newTransactions,
-          action.msg
+        pendingTransactions: state.pendingTransactions.map((transaction) => action.msg.transactionHash === transaction.transactionHash ? Object.assign({}, action.msg, { validated: true }) : transaction),
+        transactions: [
+          action.msg,
+          ...state.transactions
         ],
-        pendingTransactionHashes: updatedPendingTransactionHashes,
         transactionCount: transactionCount
       })
     }
@@ -128,109 +133,245 @@ export function reducer (state = initialState, action) {
         balance: action.msg.balance
       })
     }
+    case 'LOADING_NEXT_PAGE': {
+      return Object.assign({}, state, {
+        loadingNextPage: true
+      })
+    }
+    case 'PAGING_ERROR': {
+      return Object.assign({}, state, {
+        loadingNextPage: false,
+        pagingError: true
+      })
+    }
+    case 'RECEIVED_NEXT_TRANSACTIONS_PAGE': {
+      return Object.assign({}, state, {
+        loadingNextPage: false,
+        nextPageUrl: action.msg.nextPageUrl,
+        transactions: [
+          ...state.transactions,
+          ...action.msg.transactions
+        ]
+      })
+    }
     default:
       return state
   }
 }
 
-const $addressDetailsPage = $('[data-page="address-details"]')
-if ($addressDetailsPage.length) {
-  initRedux(reducer, {
-    main (store) {
-      const addressHash = $addressDetailsPage[0].dataset.pageAddressHash
-      const addressChannel = socket.channel(`addresses:${addressHash}`, {})
-      const { filter, blockNumber } = humps.camelizeKeys(URI(window.location).query(true))
-      store.dispatch({
-        type: 'PAGE_LOAD',
-        addressHash,
-        beyondPageOne: !!blockNumber,
-        filter,
-        pendingTransactionHashes: $('[data-selector="pending-transactions-list"]').children()
-          .map((index, el) => el.dataset.transactionHash).toArray(),
-        transactionCount: $('[data-selector="transaction-count"]').text(),
-        validationCount: $('[data-selector="validation-count"]') ? $('[data-selector="validation-count"]').text() : null
-      })
-      addressChannel.join()
-      addressChannel.onError(() => store.dispatch({ type: 'CHANNEL_DISCONNECTED' }))
-      addressChannel.on('balance', (msg) => {
-        store.dispatch({ type: 'RECEIVED_UPDATED_BALANCE', msg: humps.camelizeKeys(msg) })
-      })
-      addressChannel.on('internal_transaction', batchChannel((msgs) =>
-        store.dispatch({ type: 'RECEIVED_NEW_INTERNAL_TRANSACTION_BATCH', msgs: humps.camelizeKeys(msgs) })
-      ))
-      addressChannel.on('pending_transaction', (msg) => store.dispatch({ type: 'RECEIVED_NEW_PENDING_TRANSACTION', msg: humps.camelizeKeys(msg) }))
-      addressChannel.on('transaction', (msg) => store.dispatch({ type: 'RECEIVED_NEW_TRANSACTION', msg: humps.camelizeKeys(msg) }))
-      const blocksChannel = socket.channel(`blocks:${addressHash}`, {})
-      blocksChannel.join()
-      blocksChannel.onError(() => store.dispatch({ type: 'CHANNEL_DISCONNECTED' }))
-      blocksChannel.on('new_block', (msg) => store.dispatch({ type: 'RECEIVED_NEW_BLOCK', msg: humps.camelizeKeys(msg) }))
+const elements = {
+  '[data-selector="channel-disconnected-message"]': {
+    render ($el, state) {
+      if (state.channelDisconnected) $el.show()
+    }
+  },
+  '[data-selector="balance-card"]': {
+    load ($el) {
+      return { balance: $el.html() }
     },
-    render (state, oldState) {
-      const $balance = $('[data-selector="balance-card"]')
-      const $channelBatching = $('[data-selector="channel-batching-message"]')
-      const $channelBatchingCount = $('[data-selector="channel-batching-count"]')
-      const $channelDisconnected = $('[data-selector="channel-disconnected-message"]')
-      const $emptyInternalTransactionsList = $('[data-selector="empty-internal-transactions-list"]')
-      const $emptyTransactionsList = $('[data-selector="empty-transactions-list"]')
-      const $internalTransactionsList = $('[data-selector="internal-transactions-list"]')
-      const $pendingTransactionsCount = $('[data-selector="pending-transactions-count"]')
-      const $pendingTransactionsList = $('[data-selector="pending-transactions-list"]')
-      const $transactionCount = $('[data-selector="transaction-count"]')
-      const $transactionsList = $('[data-selector="transactions-list"]')
-      const $validationCount = $('[data-selector="validation-count"]')
-      const $validationsList = $('[data-selector="validations-list"]')
-
-      if ($emptyInternalTransactionsList.length && state.newInternalTransactions.length) window.location.reload()
-      if ($emptyTransactionsList.length && state.newTransactions.length) window.location.reload()
-      if (state.channelDisconnected) $channelDisconnected.show()
-      if (oldState.balance !== state.balance) {
-        $balance.empty().append(state.balance)
-        loadTokenBalanceDropdown()
-        updateAllCalculatedUsdValues()
-      }
-      if (oldState.transactionCount !== state.transactionCount) $transactionCount.empty().append(numeral(state.transactionCount).format())
-      if (oldState.validationCount !== state.validationCount) $validationCount.empty().append(numeral(state.validationCount).format())
-      if (state.batchCountAccumulator) {
-        $channelBatching.show()
-        $channelBatchingCount[0].innerHTML = numeral(state.batchCountAccumulator).format()
+    render ($el, state, oldState) {
+      if (oldState.balance === state.balance) return
+      $el.empty().append(state.balance)
+      loadTokenBalanceDropdown()
+      updateAllCalculatedUsdValues()
+    }
+  },
+  '[data-selector="transaction-count"]': {
+    load ($el) {
+      return { transactionCount: numeral($el.text()).value() }
+    },
+    render ($el, state, oldState) {
+      if (oldState.transactionCount === state.transactionCount) return
+      $el.empty().append(numeral(state.transactionCount).format())
+    }
+  },
+  '[data-selector="validation-count"]': {
+    load ($el) {
+      return { validationCount: numeral($el.text()).value }
+    },
+    render ($el, state, oldState) {
+      if (oldState.validationCount === state.validationCount) return
+      $el.empty().append(numeral(state.validationCount).format())
+    }
+  },
+  '[data-selector="loading-next-page"]': {
+    render ($el, state) {
+      if (state.loadingNextPage) {
+        $el.show()
       } else {
-        $channelBatching.hide()
+        $el.hide()
       }
-      if (oldState.newInternalTransactions !== state.newInternalTransactions && $internalTransactionsList.length) {
-        slideDownPrepend($internalTransactionsList, state.newInternalTransactions.slice(oldState.newInternalTransactions.length).reverse().join(''))
-        updateAllAges()
+    }
+  },
+  '[data-selector="paging-error-message"]': {
+    render ($el, state) {
+      if (state.pagingError) {
+        $el.show()
       }
-      if (oldState.pendingTransactionHashes.length !== state.pendingTransactionHashes.length && $pendingTransactionsCount.length) {
-        $pendingTransactionsCount[0].innerHTML = numeral(state.pendingTransactionHashes.length).format()
+    }
+  },
+  '[data-selector="pending-transactions-list"]': {
+    load ($el) {
+      return {
+        pendingTransactions: $el.children().map((index, el) => ({
+          transactionHash: el.dataset.transactionHash,
+          transactionHtml: el.outerHTML
+        })).toArray()
       }
-      if (oldState.newPendingTransactions !== state.newPendingTransactions && $pendingTransactionsList.length) {
-        slideDownPrepend($pendingTransactionsList, state.newPendingTransactions.slice(oldState.newPendingTransactions.length).reverse().join(''))
-        updateAllAges()
+    },
+    render ($el, state, oldState) {
+      if (oldState.pendingTransactions === state.pendingTransactions) return
+      const container = $el[0]
+      const newElements = _.map(state.pendingTransactions, ({ transactionHtml }) => $(transactionHtml)[0])
+      listMorph(container, newElements, { key: 'dataset.transactionHash' })
+    }
+  },
+  '[data-selector="pending-transactions-count"]': {
+    render ($el, state, oldState) {
+      if (oldState.pendingTransactions === state.pendingTransactions) return
+      $el[0].innerHTML = numeral(state.pendingTransactions.filter(({ validated }) => !validated).length).format()
+    }
+  },
+  '[data-selector="transactions-list"]': {
+    load ($el, store) {
+      return {
+        transactions: $el.children().map((index, el) => ({
+          transactionHash: el.dataset.transactionHash,
+          transactionHtml: el.outerHTML
+        })).toArray()
       }
-      if (oldState.newTransactions !== state.newTransactions && $transactionsList.length) {
-        const newlyValidatedTransactions = state.newTransactions.slice(oldState.newTransactions.length).reverse()
-        newlyValidatedTransactions.forEach(({ transactionHash, transactionHtml }) => {
-          let $transaction = $(`[data-selector="pending-transactions-list"] [data-transaction-hash="${transactionHash}"]`)
-          $transaction.html($(transactionHtml).html())
-          if ($transaction.is(':visible')) {
-            setTimeout(() => {
-              $transaction.addClass('shrink-out')
-              setTimeout(() => {
-                slideUpRemove($transaction)
-                slideDownPrepend($transactionsList, transactionHtml)
-              }, 400)
-            }, 1000)
-          } else {
-            $transaction.remove()
-            slideDownPrepend($transactionsList, transactionHtml)
-          }
-        })
-        updateAllAges()
+    },
+    render ($el, state, oldState) {
+      if (oldState.transactions === state.transactions) return
+      function updateTransactions () {
+        const container = $el[0]
+        const newElements = _.map(state.transactions, ({ transactionHtml }) => $(transactionHtml)[0])
+        listMorph(container, newElements, { key: 'dataset.transactionHash' })
+      }
+      if ($('[data-selector="pending-transactions-list"]').is(':visible')) {
+        setTimeout(updateTransactions, TRANSACTION_VALIDATED_MOVE_DELAY + 400)
+      } else {
+        updateTransactions()
+      }
+    }
+  },
+  '[data-selector="internal-transactions-list"]': {
+    load ($el) {
+      return {
+        internalTransactions: $el.children().map((index, el) => ({
+          internalTransactionHtml: el.outerHTML
+        })).toArray()
       }
-      if (oldState.newBlock !== state.newBlock) {
-        slideDownPrepend($validationsList, state.newBlock)
-        updateAllAges()
+    },
+    render ($el, state, oldState) {
+      if (oldState.internalTransactions === state.internalTransactions) return
+      const container = $el[0]
+      const newElements = _.map(state.internalTransactions, ({ internalTransactionHtml }) => $(internalTransactionHtml)[0])
+      listMorph(container, newElements, { key: 'dataset.key' })
+    }
+  },
+  '[data-selector="channel-batching-count"]': {
+    render ($el, state, oldState) {
+      const $channelBatching = $('[data-selector="channel-batching-message"]')
+      if (!state.internalTransactionsBatch.length) return $channelBatching.hide()
+      $channelBatching.show()
+      $el[0].innerHTML = numeral(state.internalTransactionsBatch.length).format()
+    }
+  },
+  '[data-selector="validations-list"]': {
+    load ($el) {
+      return {
+        validatedBlocks: $el.children().map((index, el) => ({
+          blockNumber: parseInt(el.dataset.blockNumber),
+          blockHtml: el.outerHTML
+        })).toArray()
       }
+    },
+    render ($el, state, oldState) {
+      if (oldState.validatedBlocks === state.validatedBlocks) return
+      const container = $el[0]
+      const newElements = _.map(state.validatedBlocks, ({ blockHtml }) => $(blockHtml)[0])
+      listMorph(container, newElements, { key: 'dataset.blockNumber' })
+    }
+  },
+  '[data-selector="next-page-button"]': {
+    load ($el) {
+      return {
+        nextPageUrl: `${$el.hide().attr('href')}&type=JSON`
+      }
+    }
+  }
+}
+
+const $addressDetailsPage = $('[data-page="address-details"]')
+if ($addressDetailsPage.length) {
+  const store = createStore(reducer)
+  const addressHash = $addressDetailsPage[0].dataset.pageAddressHash
+  const { filter, blockNumber } = humps.camelizeKeys(URI(window.location).query(true))
+  store.dispatch({
+    type: 'PAGE_LOAD',
+    addressHash,
+    filter,
+    beyondPageOne: !!blockNumber
+  })
+  connectElements({ store, elements })
+
+  const addressChannel = socket.channel(`addresses:${addressHash}`, {})
+  addressChannel.join()
+  addressChannel.onError(() => store.dispatch({
+    type: 'CHANNEL_DISCONNECTED'
+  }))
+  addressChannel.on('balance', (msg) => store.dispatch({
+    type: 'RECEIVED_UPDATED_BALANCE',
+    msg: humps.camelizeKeys(msg)
+  }))
+  addressChannel.on('internal_transaction', batchChannel((msgs) => store.dispatch({
+    type: 'RECEIVED_NEW_INTERNAL_TRANSACTION_BATCH',
+    msgs: humps.camelizeKeys(msgs)
+  })))
+  addressChannel.on('pending_transaction', (msg) => store.dispatch({
+    type: 'RECEIVED_NEW_PENDING_TRANSACTION',
+    msg: humps.camelizeKeys(msg)
+  }))
+  addressChannel.on('transaction', (msg) => {
+    store.dispatch({
+      type: 'RECEIVED_NEW_TRANSACTION',
+      msg: humps.camelizeKeys(msg)
+    })
+    setTimeout(() => store.dispatch({
+      type: 'REMOVE_PENDING_TRANSACTION',
+      msg: humps.camelizeKeys(msg)
+    }), TRANSACTION_VALIDATED_MOVE_DELAY)
+  })
+
+  const blocksChannel = socket.channel(`blocks:${addressHash}`, {})
+  blocksChannel.join()
+  blocksChannel.onError(() => store.dispatch({
+    type: 'CHANNEL_DISCONNECTED'
+  }))
+  blocksChannel.on('new_block', (msg) => store.dispatch({
+    type: 'RECEIVED_NEW_BLOCK',
+    msg: humps.camelizeKeys(msg)
+  }))
+
+  $('[data-selector="transactions-list"]').length && onScrollBottom(function loadMoreTransactions () {
+    const { loadingNextPage, nextPageUrl, pagingError } = store.getState()
+    if (!loadingNextPage && nextPageUrl && !pagingError) {
+      store.dispatch({
+        type: 'LOADING_NEXT_PAGE'
+      })
+      $.get(nextPageUrl)
+        .done(msg => {
+          store.dispatch({
+            type: 'RECEIVED_NEXT_TRANSACTIONS_PAGE',
+            msg: humps.camelizeKeys(msg)
+          })
+        })
+        .fail(() => {
+          store.dispatch({
+            type: 'PAGING_ERROR'
+          })
+        })
     }
   })
 }

apps/block_scout_web/assets/js/pages/pending_transactions.js

@@ -0,0 +1,131 @@
+import $ from 'jquery'
+import _ from 'lodash'
+import URI from 'urijs'
+import humps from 'humps'
+import numeral from 'numeral'
+import socket from '../socket'
+import { updateAllAges } from '../lib/from_now'
+import { batchChannel, initRedux, slideDownPrepend, slideUpRemove } from '../utils'
+
+const BATCH_THRESHOLD = 10
+
+export const initialState = {
+  newPendingTransactionHashesBatch: [],
+  beyondPageOne: null,
+  channelDisconnected: false,
+  newPendingTransactions: [],
+  newTransactionHashes: [],
+  pendingTransactionCount: null
+}
+
+export function reducer (state = initialState, action) {
+  switch (action.type) {
+    case 'PAGE_LOAD': {
+      return Object.assign({}, state, {
+        beyondPageOne: action.beyondPageOne,
+        pendingTransactionCount: numeral(action.pendingTransactionCount).value()
+      })
+    }
+    case 'CHANNEL_DISCONNECTED': {
+      return Object.assign({}, state, {
+        channelDisconnected: true
+      })
+    }
+    case 'RECEIVED_NEW_TRANSACTION': {
+      if (state.channelDisconnected) return state
+
+      return Object.assign({}, state, {
+        newPendingTransactionHashesBatch: _.without(state.newPendingTransactionHashesBatch, action.msg.transactionHash),
+        pendingTransactionCount: state.pendingTransactionCount - 1,
+        newTransactionHashes: [action.msg.transactionHash]
+      })
+    }
+    case 'RECEIVED_NEW_PENDING_TRANSACTION_BATCH': {
+      if (state.channelDisconnected) return state
+
+      const pendingTransactionCount = state.pendingTransactionCount + action.msgs.length
+
+      if (state.beyondPageOne) return Object.assign({}, state, { pendingTransactionCount })
+
+      if (!state.newPendingTransactionHashesBatch.length && action.msgs.length < BATCH_THRESHOLD) {
+        return Object.assign({}, state, {
+          newPendingTransactions: [
+            ...state.newPendingTransactions,
+            ..._.map(action.msgs, 'transactionHtml')
+          ],
+          pendingTransactionCount
+        })
+      } else {
+        return Object.assign({}, state, {
+          newPendingTransactionHashesBatch: [
+            ...state.newPendingTransactionHashesBatch,
+            ..._.map(action.msgs, 'transactionHash')
+          ],
+          pendingTransactionCount
+        })
+      }
+    }
+    default:
+      return state
+  }
+}
+
+const $transactionPendingListPage = $('[data-page="transaction-pending-list"]')
+if ($transactionPendingListPage.length) {
+  initRedux(reducer, {
+    main (store) {
+      store.dispatch({
+        type: 'PAGE_LOAD',
+        pendingTransactionCount: $('[data-selector="transaction-pending-count"]').text(),
+        beyondPageOne: !!humps.camelizeKeys(URI(window.location).query(true)).insertedAt
+      })
+      const transactionsChannel = socket.channel(`transactions:new_transaction`)
+      transactionsChannel.join()
+      transactionsChannel.onError(() => store.dispatch({ type: 'CHANNEL_DISCONNECTED' }))
+      transactionsChannel.on('transaction', (msg) =>
+        store.dispatch({ type: 'RECEIVED_NEW_TRANSACTION', msg: humps.camelizeKeys(msg) })
+      )
+      const pendingTransactionsChannel = socket.channel(`transactions:new_pending_transaction`)
+      pendingTransactionsChannel.join()
+      pendingTransactionsChannel.onError(() => store.dispatch({ type: 'CHANNEL_DISCONNECTED' }))
+      pendingTransactionsChannel.on('pending_transaction', batchChannel((msgs) =>
+        store.dispatch({ type: 'RECEIVED_NEW_PENDING_TRANSACTION_BATCH', msgs: humps.camelizeKeys(msgs) }))
+      )
+    },
+    render (state, oldState) {
+      const $channelBatching = $('[data-selector="channel-batching-message"]')
+      const $channelBatchingCount = $('[data-selector="channel-batching-count"]')
+      const $channelDisconnected = $('[data-selector="channel-disconnected-message"]')
+      const $pendingTransactionsList = $('[data-selector="transactions-pending-list"]')
+      const $pendingTransactionsCount = $('[data-selector="transaction-pending-count"]')
+
+      if (state.channelDisconnected) $channelDisconnected.show()
+      if (oldState.pendingTransactionCount !== state.pendingTransactionCount) {
+        $pendingTransactionsCount.empty().append(numeral(state.pendingTransactionCount).format())
+      }
+      if (oldState.newTransactionHashes !== state.newTransactionHashes && state.newTransactionHashes.length > 0) {
+        const $transaction = $(`[data-transaction-hash="${state.newTransactionHashes[0]}"]`)
+        $transaction.addClass('shrink-out')
+        setTimeout(() => {
+          if ($transaction.length === 1 && $transaction.siblings().length === 0 && state.pendingTransactionCount > 0) {
+            window.location.href = URI(window.location).removeQuery('inserted_at').removeQuery('hash').toString()
+          } else {
+            slideUpRemove($transaction)
+          }
+        }, 400)
+      }
+      if (state.newPendingTransactionHashesBatch.length) {
+        $channelBatching.show()
+        $channelBatchingCount[0].innerHTML = numeral(state.newPendingTransactionHashesBatch.length).format()
+      } else {
+        $channelBatching.hide()
+      }
+      if (oldState.newPendingTransactions !== state.newPendingTransactions) {
+        const newTransactionsToInsert = state.newPendingTransactions.slice(oldState.newPendingTransactions.length)
+        slideDownPrepend($pendingTransactionsList, newTransactionsToInsert.reverse().join(''))
+
+        updateAllAges()
+      }
+    }
+  })
+}

apps/block_scout_web/assets/js/pages/transaction.js

@@ -1,42 +1,19 @@
 import $ from 'jquery'
-import _ from 'lodash'
-import URI from 'urijs'
 import humps from 'humps'
 import numeral from 'numeral'
 import socket from '../socket'
-import { updateAllAges } from '../lib/from_now'
-import { batchChannel, initRedux, slideDownPrepend, slideUpRemove } from '../utils'
-
-const BATCH_THRESHOLD = 10
+import { initRedux } from '../utils'
 
 export const initialState = {
-  batchCountAccumulator: 0,
-  newPendingTransactionHashesBatch: [],
-  beyondPageOne: null,
   blockNumber: null,
-  channelDisconnected: false,
-  confirmations: null,
-  newPendingTransactions: [],
-  newTransactions: [],
-  newTransactionHashes: [],
-  transactionCount: null,
-  pendingTransactionCount: null
+  confirmations: null
 }
 
 export function reducer (state = initialState, action) {
   switch (action.type) {
     case 'PAGE_LOAD': {
       return Object.assign({}, state, {
-        beyondPageOne: action.beyondPageOne,
-        blockNumber: parseInt(action.blockNumber, 10),
-        transactionCount: numeral(action.transactionCount).value(),
-        pendingTransactionCount: numeral(action.pendingTransactionCount).value()
-      })
-    }
-    case 'CHANNEL_DISCONNECTED': {
-      return Object.assign({}, state, {
-        channelDisconnected: true,
-        batchCountAccumulator: 0
+        blockNumber: parseInt(action.blockNumber, 10)
       })
     }
     case 'RECEIVED_NEW_BLOCK': {
@@ -46,62 +23,6 @@ export function reducer (state = initialState, action) {
         })
       } else return state
     }
-    case 'RECEIVED_NEW_TRANSACTION': {
-      if (state.channelDisconnected) return state
-
-      return Object.assign({}, state, {
-        newPendingTransactionHashesBatch: _.without(state.newPendingTransactionHashesBatch, action.msg.transactionHash),
-        pendingTransactionCount: state.pendingTransactionCount - 1,
-        newTransactionHashes: [action.msg.transactionHash]
-      })
-    }
-    case 'RECEIVED_NEW_PENDING_TRANSACTION_BATCH': {
-      if (state.channelDisconnected) return state
-
-      const pendingTransactionCount = state.pendingTransactionCount + action.msgs.length
-
-      if (state.beyondPageOne) return Object.assign({}, state, { pendingTransactionCount })
-
-      if (!state.newPendingTransactionHashesBatch.length && action.msgs.length < BATCH_THRESHOLD) {
-        return Object.assign({}, state, {
-          newPendingTransactions: [
-            ...state.newPendingTransactions,
-            ..._.map(action.msgs, 'transactionHtml')
-          ],
-          pendingTransactionCount
-        })
-      } else {
-        return Object.assign({}, state, {
-          newPendingTransactionHashesBatch: [
-            ...state.newPendingTransactionHashesBatch,
-            ..._.map(action.msgs, 'transactionHash')
-          ],
-          pendingTransactionCount
-        })
-      }
-    }
-    case 'RECEIVED_NEW_TRANSACTION_BATCH': {
-      if (state.channelDisconnected) return state
-
-      const transactionCount = state.transactionCount + action.msgs.length
-
-      if (state.beyondPageOne) return Object.assign({}, state, { transactionCount })
-
-      if (!state.batchCountAccumulator && action.msgs.length < BATCH_THRESHOLD) {
-        return Object.assign({}, state, {
-          newTransactions: [
-            ...state.newTransactions,
-            ..._.map(action.msgs, 'transactionHtml')
-          ],
-          transactionCount
-        })
-      } else {
-        return Object.assign({}, state, {
-          batchCountAccumulator: state.batchCountAccumulator + action.msgs.length,
-          transactionCount
-        })
-      }
-    }
     default:
       return state
   }
@@ -134,104 +55,3 @@ if ($transactionDetailsPage.length) {
     }
   })
 }
-
-const $transactionPendingListPage = $('[data-page="transaction-pending-list"]')
-if ($transactionPendingListPage.length) {
-  initRedux(reducer, {
-    main (store) {
-      store.dispatch({
-        type: 'PAGE_LOAD',
-        pendingTransactionCount: $('[data-selector="transaction-pending-count"]').text(),
-        beyondPageOne: !!humps.camelizeKeys(URI(window.location).query(true)).insertedAt
-      })
-      const transactionsChannel = socket.channel(`transactions:new_transaction`)
-      transactionsChannel.join()
-      transactionsChannel.onError(() => store.dispatch({ type: 'CHANNEL_DISCONNECTED' }))
-      transactionsChannel.on('transaction', (msg) =>
-        store.dispatch({ type: 'RECEIVED_NEW_TRANSACTION', msg: humps.camelizeKeys(msg) })
-      )
-      const pendingTransactionsChannel = socket.channel(`transactions:new_pending_transaction`)
-      pendingTransactionsChannel.join()
-      pendingTransactionsChannel.onError(() => store.dispatch({ type: 'CHANNEL_DISCONNECTED' }))
-      pendingTransactionsChannel.on('pending_transaction', batchChannel((msgs) =>
-        store.dispatch({ type: 'RECEIVED_NEW_PENDING_TRANSACTION_BATCH', msgs: humps.camelizeKeys(msgs) }))
-      )
-    },
-    render (state, oldState) {
-      const $channelBatching = $('[data-selector="channel-batching-message"]')
-      const $channelBatchingCount = $('[data-selector="channel-batching-count"]')
-      const $channelDisconnected = $('[data-selector="channel-disconnected-message"]')
-      const $pendingTransactionsList = $('[data-selector="transactions-pending-list"]')
-      const $pendingTransactionsCount = $('[data-selector="transaction-pending-count"]')
-
-      if (state.channelDisconnected) $channelDisconnected.show()
-      if (oldState.pendingTransactionCount !== state.pendingTransactionCount) {
-        $pendingTransactionsCount.empty().append(numeral(state.pendingTransactionCount).format())
-      }
-      if (oldState.newTransactionHashes !== state.newTransactionHashes && state.newTransactionHashes.length > 0) {
-        const $transaction = $(`[data-transaction-hash="${state.newTransactionHashes[0]}"]`)
-        $transaction.addClass('shrink-out')
-        setTimeout(() => {
-          if ($transaction.length === 1 && $transaction.siblings().length === 0 && state.pendingTransactionCount > 0) {
-            window.location.href = URI(window.location).removeQuery('inserted_at').removeQuery('hash').toString()
-          } else {
-            slideUpRemove($transaction)
-          }
-        }, 400)
-      }
-      if (state.newPendingTransactionHashesBatch.length) {
-        $channelBatching.show()
-        $channelBatchingCount[0].innerHTML = numeral(state.newPendingTransactionHashesBatch.length).format()
-      } else {
-        $channelBatching.hide()
-      }
-      if (oldState.newPendingTransactions !== state.newPendingTransactions) {
-        const newTransactionsToInsert = state.newPendingTransactions.slice(oldState.newPendingTransactions.length)
-        slideDownPrepend($pendingTransactionsList, newTransactionsToInsert.reverse().join(''))
-
-        updateAllAges()
-      }
-    }
-  })
-}
-
-const $transactionListPage = $('[data-page="transaction-list"]')
-if ($transactionListPage.length) {
-  initRedux(reducer, {
-    main (store) {
-      store.dispatch({
-        type: 'PAGE_LOAD',
-        transactionCount: $('[data-selector="transaction-count"]').text(),
-        beyondPageOne: !!humps.camelizeKeys(URI(window.location).query(true)).index
-      })
-      const transactionsChannel = socket.channel(`transactions:new_transaction`)
-      transactionsChannel.join()
-      transactionsChannel.onError(() => store.dispatch({ type: 'CHANNEL_DISCONNECTED' }))
-      transactionsChannel.on('transaction', batchChannel((msgs) =>
-        store.dispatch({ type: 'RECEIVED_NEW_TRANSACTION_BATCH', msgs: humps.camelizeKeys(msgs) }))
-      )
-    },
-    render (state, oldState) {
-      const $channelBatching = $('[data-selector="channel-batching-message"]')
-      const $channelBatchingCount = $('[data-selector="channel-batching-count"]')
-      const $channelDisconnected = $('[data-selector="channel-disconnected-message"]')
-      const $transactionsList = $('[data-selector="transactions-list"]')
-      const $transactionCount = $('[data-selector="transaction-count"]')
-
-      if (state.channelDisconnected) $channelDisconnected.show()
-      if (oldState.transactionCount !== state.transactionCount) $transactionCount.empty().append(numeral(state.transactionCount).format())
-      if (state.batchCountAccumulator) {
-        $channelBatching.show()
-        $channelBatchingCount[0].innerHTML = numeral(state.batchCountAccumulator).format()
-      } else {
-        $channelBatching.hide()
-      }
-      if (oldState.newTransactions !== state.newTransactions) {
-        const newTransactionsToInsert = state.newTransactions.slice(oldState.newTransactions.length)
-        slideDownPrepend($transactionsList, newTransactionsToInsert.reverse().join(''))
-
-        updateAllAges()
-      }
-    }
-  })
-}

apps/block_scout_web/assets/js/pages/transactions.js

@@ -0,0 +1,100 @@
+import $ from 'jquery'
+import _ from 'lodash'
+import URI from 'urijs'
+import humps from 'humps'
+import numeral from 'numeral'
+import socket from '../socket'
+import { updateAllAges } from '../lib/from_now'
+import { batchChannel, initRedux, slideDownPrepend } from '../utils'
+
+const BATCH_THRESHOLD = 10
+
+export const initialState = {
+  batchCountAccumulator: 0,
+  beyondPageOne: null,
+  channelDisconnected: false,
+  newTransactions: [],
+  transactionCount: null
+}
+
+export function reducer (state = initialState, action) {
+  switch (action.type) {
+    case 'PAGE_LOAD': {
+      return Object.assign({}, state, {
+        beyondPageOne: action.beyondPageOne,
+        transactionCount: numeral(action.transactionCount).value()
+      })
+    }
+    case 'CHANNEL_DISCONNECTED': {
+      return Object.assign({}, state, {
+        channelDisconnected: true,
+        batchCountAccumulator: 0
+      })
+    }
+    case 'RECEIVED_NEW_TRANSACTION_BATCH': {
+      if (state.channelDisconnected) return state
+
+      const transactionCount = state.transactionCount + action.msgs.length
+
+      if (state.beyondPageOne) return Object.assign({}, state, { transactionCount })
+
+      if (!state.batchCountAccumulator && action.msgs.length < BATCH_THRESHOLD) {
+        return Object.assign({}, state, {
+          newTransactions: [
+            ...state.newTransactions,
+            ..._.map(action.msgs, 'transactionHtml')
+          ],
+          transactionCount
+        })
+      } else {
+        return Object.assign({}, state, {
+          batchCountAccumulator: state.batchCountAccumulator + action.msgs.length,
+          transactionCount
+        })
+      }
+    }
+    default:
+      return state
+  }
+}
+
+const $transactionListPage = $('[data-page="transaction-list"]')
+if ($transactionListPage.length) {
+  initRedux(reducer, {
+    main (store) {
+      store.dispatch({
+        type: 'PAGE_LOAD',
+        transactionCount: $('[data-selector="transaction-count"]').text(),
+        beyondPageOne: !!humps.camelizeKeys(URI(window.location).query(true)).index
+      })
+      const transactionsChannel = socket.channel(`transactions:new_transaction`)
+      transactionsChannel.join()
+      transactionsChannel.onError(() => store.dispatch({ type: 'CHANNEL_DISCONNECTED' }))
+      transactionsChannel.on('transaction', batchChannel((msgs) =>
+        store.dispatch({ type: 'RECEIVED_NEW_TRANSACTION_BATCH', msgs: humps.camelizeKeys(msgs) }))
+      )
+    },
+    render (state, oldState) {
+      const $channelBatching = $('[data-selector="channel-batching-message"]')
+      const $channelBatchingCount = $('[data-selector="channel-batching-count"]')
+      const $channelDisconnected = $('[data-selector="channel-disconnected-message"]')
+      const $transactionsList = $('[data-selector="transactions-list"]')
+      const $transactionCount = $('[data-selector="transaction-count"]')
+
+      if (state.channelDisconnected) $channelDisconnected.show()
+      if (oldState.transactionCount !== state.transactionCount) $transactionCount.empty().append(numeral(state.transactionCount).format())
+      if (state.batchCountAccumulator) {
+        $channelBatching.show()
+        $channelBatchingCount[0].innerHTML = numeral(state.batchCountAccumulator).format()
+      } else {
+        $channelBatching.hide()
+      }
+      if (oldState.newTransactions !== state.newTransactions) {
+        const newTransactionsToInsert = state.newTransactions.slice(oldState.newTransactions.length)
+        slideDownPrepend($transactionsList, newTransactionsToInsert.reverse().join(''))
+
+        updateAllAges()
+      }
+    }
+  })
+}

apps/block_scout_web/assets/js/utils.js

@@ -1,6 +1,8 @@
 import $ from 'jquery'
 import _ from 'lodash'
-import { createStore } from 'redux'
+import { createStore as reduxCreateStore } from 'redux'
+import morph from 'nanomorph'
+import { updateAllAges } from './lib/from_now'
 
 export function batchChannel (func) {
   let msgs = []
@@ -40,6 +42,37 @@ export function initRedux (reducer, { main, render, debug } = {}) {
   if (main) main(store)
 }
 
+export function createStore (reducer) {
+  return reduxCreateStore(reducer, window.__REDUX_DEVTOOLS_EXTENSION__ && window.__REDUX_DEVTOOLS_EXTENSION__())
+}
+
+export function connectElements ({ elements, store }) {
+  function loadElements () {
+    return _.reduce(elements, (pageLoadParams, { load }, selector) => {
+      if (!load) return pageLoadParams
+      const $el = $(selector)
+      if (!$el.length) return pageLoadParams
+      const morePageLoadParams = load($el, store)
+      return _.isObject(morePageLoadParams) ? Object.assign(pageLoadParams, morePageLoadParams) : pageLoadParams
+    }, {})
+  }
+  function renderElements (state, oldState) {
+    _.forIn(elements, ({ render }, selector) => {
+      if (!render) return
+      const $el = $(selector)
+      if (!$el.length) return
+      render($el, state, oldState)
+    })
+  }
+  store.dispatch(Object.assign(loadElements(), { type: 'ELEMENTS_LOAD' }))
+  let oldState = store.getState()
+  store.subscribe(() => {
+    const state = store.getState()
+    renderElements(state, oldState)
+    oldState = state
+  })
+}
+
 export function skippedBlockListBuilder (skippedBlockNumbers, newestBlock, oldestBlock) {
   for (let i = newestBlock - 1; i > oldestBlock; i--) skippedBlockNumbers.push(i)
   return skippedBlockNumbers
@@ -52,6 +85,13 @@ export function slideDownPrepend ($container, content) {
     }
   })
 }
+export function slideDownAppend ($container, content) {
+  smarterSlideDown($(content), {
+    insert ($el) {
+      $container.append($el)
+    }
+  })
+}
 export function slideDownBefore ($container, content) {
   smarterSlideDown($(content), {
     insert ($el) {
@@ -105,3 +145,71 @@ function smarterSlideUp ($el, { complete = _.noop } = {}) {
     $el.slideUp({ complete, easing: 'linear' })
   }
 }
+
+// The goal of this function is to DOM diff lists, so upon completion `container.innerHTML` should be
+// equivalent to `newElements.join('')`.
+//
+// We could simply do `container.innerHTML = newElements.join('')` but that would not be efficient and
+// it not animate appropriately. We could also simply use `morph` (or a similar library) on the entire
+// list, however that doesn't give us the proper amount of control for animations.
+//
+// This function will walk though, remove items currently in `container` which are not in the new list.
+// Then it will swap the contents of the items that are in both lists in case the items were updated or
+// the order changed. Finally, it will add elements to `container` which are in the new list and didn't
+// already exist in the DOM.
+//
+// Params:
+// container:    the DOM element which contents need replaced
+// newElements:  a list of elements that need to be put into the container
+// options:
+//   key:        the path to the unique identifier of each element
+//   horizontal: our horizontal animations are handled in CSS, so passing in `true` will not play JS
+//               animations
+export function listMorph (container, newElements, { key, horizontal } = {}) {
+  if (!container) return
+  const oldElements = $(container).children().get()
+  let currentList = _.map(oldElements, (el) => ({ id: _.get(el, key), el }))
+  const newList = _.map(newElements, (el) => ({ id: _.get(el, key), el }))
+  const overlap = _.intersectionBy(newList, currentList, 'id').map(({ id, el }) => ({ id, el: updateAllAges($(el))[0] }))
+
+  // remove old items
+  const removals = _.differenceBy(currentList, newList, 'id')
+  let canAnimate = !horizontal && removals.length <= 1
+  removals.forEach(({ el }) => {
+    if (!canAnimate) return el.remove()
+    const $el = $(el)
+    $el.addClass('shrink-out')
+    setTimeout(() => { slideUpRemove($el) }, 400)
+  })
+  currentList = _.differenceBy(currentList, removals, 'id')
+
+  // update kept items
+  currentList = currentList.map(({ el }, i) => ({
+    id: overlap[i].id,
+    el: el.outerHTML === overlap[i].el.outerHTML ? el : morph(el, overlap[i].el)
+  }))
+
+  // add new items
+  const finalList = newList.map(({ id, el }) => _.get(_.find(currentList, { id }), 'el', el)).reverse()
+  canAnimate = !horizontal
+  finalList.forEach((el, i) => {
+    if (el.parentElement) return
+    if (!canAnimate) return container.insertBefore(el, _.get(finalList, `[${i - 1}]`))
+    canAnimate = false
+    if (!_.get(finalList, `[${i - 1}]`)) return slideDownAppend($(container), el)
+    slideDownBefore($(_.get(finalList, `[${i - 1}]`)), el)
+  })
+}
+
+export function onScrollBottom (callback) {
+  const $window = $(window)
+  function infiniteScrollChecker () {
+    const scrollHeight = $(document).height()
+    const scrollPosition = $window.height() + $window.scrollTop()
+    if ((scrollHeight - scrollPosition) / scrollHeight === 0) {
+      callback()
+    }
+  }
+  infiniteScrollChecker()
+  $window.on('scroll', infiniteScrollChecker)
+}

apps/block_scout_web/assets/package-lock.json

@@ -3789,8 +3789,7 @@
           "version": "2.1.1",
           "resolved": false,
           "integrity": "sha1-w7M6te42DYbg5ijwRorn7yfWVN8=",
-          "dev": true,
-          "optional": true
+          "dev": true
         },
         "aproba": {
           "version": "1.2.0",
@@ -3814,15 +3813,13 @@
           "version": "1.0.0",
           "resolved": false,
           "integrity": "sha1-ibTRmasr7kneFk6gK4nORi1xt2c=",
-          "dev": true,
-          "optional": true
+          "dev": true
         },
         "brace-expansion": {
           "version": "1.1.11",
           "resolved": false,
           "integrity": "sha512-iCuPHDFgrHX7H2vEI/5xpz07zSHB00TpugqhmYtVmMO6518mCuRMoOYFldEBl0g187ufozdaHgWKcYFb61qGiA==",
           "dev": true,
-          "optional": true,
           "requires": {
             "balanced-match": "^1.0.0",
             "concat-map": "0.0.1"
@@ -3839,22 +3836,19 @@
           "version": "1.1.0",
           "resolved": false,
           "integrity": "sha1-DQcLTQQ6W+ozovGkDi7bPZpMz3c=",
-          "dev": true,
-          "optional": true
+          "dev": true
         },
         "concat-map": {
           "version": "0.0.1",
           "resolved": false,
           "integrity": "sha1-2Klr13/Wjfd5OnMDajug1UBdR3s=",
-          "dev": true,
-          "optional": true
+          "dev": true
         },
         "console-control-strings": {
           "version": "1.1.0",
           "resolved": false,
           "integrity": "sha1-PXz0Rk22RG6mRL9LOVB/mFEAjo4=",
-          "dev": true,
-          "optional": true
+          "dev": true
         },
         "core-util-is": {
           "version": "1.0.2",
@@ -3985,8 +3979,7 @@
           "version": "2.0.3",
           "resolved": false,
           "integrity": "sha1-Yzwsg+PaQqUC9SRmAiSA9CCCYd4=",
-          "dev": true,
-          "optional": true
+          "dev": true
         },
         "ini": {
           "version": "1.3.5",
@@ -4000,7 +3993,6 @@
           "resolved": false,
           "integrity": "sha1-754xOG8DGn8NZDr4L95QxFfvAMs=",
           "dev": true,
-          "optional": true,
           "requires": {
             "number-is-nan": "^1.0.0"
           }
@@ -4017,7 +4009,6 @@
           "resolved": false,
           "integrity": "sha512-yJHVQEhyqPLUTgt9B83PXu6W3rx4MvvHvSUvToogpwoGDOUQ+yDrR0HRot+yOCdCO7u4hX3pWft6kWBBcqh0UA==",
           "dev": true,
-          "optional": true,
           "requires": {
             "brace-expansion": "^1.1.7"
           }
@@ -4026,15 +4017,13 @@
           "version": "0.0.8",
           "resolved": false,
           "integrity": "sha1-hX/Kv8M5fSYluCKCYuhqp6ARsF0=",
-          "dev": true,
-          "optional": true
+          "dev": true
         },
         "minipass": {
           "version": "2.2.4",
           "resolved": false,
           "integrity": "sha512-hzXIWWet/BzWhYs2b+u7dRHlruXhwdgvlTMDKC6Cb1U7ps6Ac6yQlR39xsbjWJE377YTCtKwIXIpJ5oP+j5y8g==",
           "dev": true,
-          "optional": true,
           "requires": {
             "safe-buffer": "^5.1.1",
             "yallist": "^3.0.0"
@@ -4055,7 +4044,6 @@
           "resolved": false,
           "integrity": "sha1-MAV0OOrGz3+MR2fzhkjWaX11yQM=",
           "dev": true,
-          "optional": true,
           "requires": {
             "minimist": "0.0.8"
           }
@@ -4144,8 +4132,7 @@
           "version": "1.0.1",
           "resolved": false,
           "integrity": "sha1-CXtgK1NCKlIsGvuHkDGDNpQaAR0=",
-          "dev": true,
-          "optional": true
+          "dev": true
         },
         "object-assign": {
           "version": "4.1.1",
@@ -4159,7 +4146,6 @@
           "resolved": false,
           "integrity": "sha1-WDsap3WWHUsROsF9nFC6753Xa9E=",
           "dev": true,
-          "optional": true,
           "requires": {
             "wrappy": "1"
           }
@@ -4255,8 +4241,7 @@
           "version": "5.1.1",
           "resolved": false,
           "integrity": "sha512-kKvNJn6Mm93gAczWVJg7wH+wGYWNrDHdWvpUmHyEsgCtIwwo3bqPtV4tR5tuPaUhTOo/kvhVwd8XwwOllGYkbg==",
-          "dev": true,
-          "optional": true
+          "dev": true
         },
         "safer-buffer": {
           "version": "2.1.2",
@@ -4298,7 +4283,6 @@
           "resolved": false,
           "integrity": "sha1-EYvfW4zcUaKn5w0hHgfisLmxB9M=",
           "dev": true,
-          "optional": true,
           "requires": {
             "code-point-at": "^1.0.0",
             "is-fullwidth-code-point": "^1.0.0",
@@ -4320,7 +4304,6 @@
           "resolved": false,
           "integrity": "sha1-ajhfuIU9lS1f8F0Oiq+UJ43GPc8=",
           "dev": true,
-          "optional": true,
           "requires": {
             "ansi-regex": "^2.0.0"
           }
@@ -4369,15 +4352,13 @@
           "version": "1.0.2",
           "resolved": false,
           "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8=",
-          "dev": true,
-          "optional": true
+          "dev": true
         },
         "yallist": {
           "version": "3.0.2",
           "resolved": false,
           "integrity": "sha1-hFK0u36Dx8GI2AQcGoN8dz1ti7k=",
-          "dev": true,
-          "optional": true
+          "dev": true
         }
       }
     },
@@ -6428,6 +6409,11 @@
       "integrity": "sha512-bAdJv7fBLhWC+/Bls0Oza+mvTaNQtP+1RyhhhvD95pgUJz6XM5IzgmxOkItJ9tkoCiplvAnXI1tNmmUD/eScyA==",
       "dev": true
     },
+    "nanoassert": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/nanoassert/-/nanoassert-1.1.0.tgz",
+      "integrity": "sha1-TzFS4JVA/eKMdvRLGbvNHVpCR40="
+    },
     "nanomatch": {
       "version": "1.2.13",
       "resolved": "https://registry.npmjs.org/nanomatch/-/nanomatch-1.2.13.tgz",
@@ -6455,6 +6441,14 @@
         }
       }
     },
+    "nanomorph": {
+      "version": "5.1.3",
+      "resolved": "https://registry.npmjs.org/nanomorph/-/nanomorph-5.1.3.tgz",
+      "integrity": "sha512-VydkKjFWU/DAO0R10awFASRNXQKHrZUMdMIiNcdmWm+IhuifuPOw/dDtpiQ1cNROF8f3ATPrcKRVarEayQJOqA==",
+      "requires": {
+        "nanoassert": "^1.1.0"
+      }
+    },
     "natural-compare": {
       "version": "1.4.0",
       "resolved": "https://registry.npmjs.org/natural-compare/-/natural-compare-1.4.0.tgz",

apps/block_scout_web/assets/package.json

@@ -28,6 +28,7 @@
     "jquery": "^3.3.1",
     "lodash": "^4.17.10",
     "moment": "^2.22.1",
+    "nanomorph": "^5.1.3",
     "numeral": "^2.0.6",
     "path-parser": "^4.1.1",
     "phoenix": "file:../../../deps/phoenix",

apps/block_scout_web/lib/block_scout_web/chain.ex

@@ -16,7 +16,7 @@ defmodule BlockScoutWeb.Chain do
 
   alias Explorer.Chain.{
     Address,
-    Address.TokenBalance,
+    Address.CurrentTokenBalance,
     Block,
     InternalTransaction,
     Log,
@@ -198,7 +198,7 @@ defmodule BlockScoutWeb.Chain do
     %{"token_name" => name, "token_type" => type, "token_inserted_at" => inserted_at_datetime}
   end
 
-  defp paging_params(%TokenBalance{address_hash: address_hash, value: value}) do
+  defp paging_params(%CurrentTokenBalance{address_hash: address_hash, value: value}) do
     %{"address_hash" => to_string(address_hash), "value" => Decimal.to_integer(value)}
   end
 

apps/block_scout_web/lib/block_scout_web/controllers/address_controller.ex

@@ -7,9 +7,10 @@ defmodule BlockScoutWeb.AddressController do
 
   def index(conn, _params) do
     render(conn, "index.html",
-      addresses: Chain.list_top_addresses(),
+      address_tx_count_pairs: Chain.list_top_addresses(),
       address_estimated_count: Chain.address_estimated_count(),
-      exchange_rate: Market.get_exchange_rate(Explorer.coin()) || Token.null()
+      exchange_rate: Market.get_exchange_rate(Explorer.coin()) || Token.null(),
+      total_supply: Chain.total_supply()
     )
   end
 

apps/block_scout_web/lib/block_scout_web/controllers/address_transaction_controller.ex

@@ -8,34 +8,87 @@ defmodule BlockScoutWeb.AddressTransactionController do
   import BlockScoutWeb.AddressController, only: [transaction_count: 1, validation_count: 1]
   import BlockScoutWeb.Chain, only: [current_filter: 1, paging_options: 1, next_page_params: 3, split_list_by_page: 1]
 
+  alias BlockScoutWeb.TransactionView
   alias Explorer.{Chain, Market}
+  alias Explorer.Chain.Hash
   alias Explorer.ExchangeRates.Token
+  alias Phoenix.View
+
+  @transaction_necessity_by_association [
+    necessity_by_association: %{
+      [created_contract_address: :names] => :optional,
+      [from_address: :names] => :optional,
+      [to_address: :names] => :optional,
+      :token_transfers => :optional
+    }
+  ]
+
+  def index(conn, %{"address_id" => address_hash_string, "type" => "JSON"} = params) do
+    with {:ok, address_hash} <- Chain.string_to_address_hash(address_hash_string),
+         {:ok, address} <- Chain.hash_to_address(address_hash) do
+      options =
+        @transaction_necessity_by_association
+        |> put_in([:necessity_by_association, :block], :required)
+        |> Keyword.merge(paging_options(params))
+        |> Keyword.merge(current_filter(params))
+
+      {transactions, next_page} = get_transactions_and_next_page(address, options)
+
+      next_page_url =
+        case next_page_params(next_page, transactions, params) do
+          nil ->
+            nil
+
+          next_page_params ->
+            address_transaction_path(
+              conn,
+              :index,
+              address,
+              next_page_params
+            )
+        end
+
+      json(
+        conn,
+        %{
+          transactions:
+            Enum.map(transactions, fn transaction ->
+              %{
+                transaction_hash: Hash.to_string(transaction.hash),
+                transaction_html:
+                  View.render_to_string(
+                    TransactionView,
+                    "_tile.html",
+                    current_address: address,
+                    transaction: transaction
+                  )
+              }
+            end),
+          next_page_url: next_page_url
+        }
+      )
+    else
+      :error ->
+        unprocessable_entity(conn)
+
+      {:error, :not_found} ->
+        not_found(conn)
+    end
+  end
 
   def index(conn, %{"address_id" => address_hash_string} = params) do
     with {:ok, address_hash} <- Chain.string_to_address_hash(address_hash_string),
          {:ok, address} <- Chain.hash_to_address(address_hash) do
       pending_options =
-        [
-          necessity_by_association: %{
-            [created_contract_address: :names] => :optional,
-            [from_address: :names] => :optional,
-            [to_address: :names] => :optional,
-            :token_transfers => :optional
-          }
-        ]
-        |> Keyword.merge(paging_options(params))
+        @transaction_necessity_by_association
+        |> Keyword.merge(paging_options(%{}))
         |> Keyword.merge(current_filter(params))
 
       full_options = put_in(pending_options, [:necessity_by_association, :block], :required)
 
-      transactions_plus_one = Chain.address_to_transactions(address, full_options)
-      {transactions, next_page} = split_list_by_page(transactions_plus_one)
+      {transactions, next_page} = get_transactions_and_next_page(address, full_options)
 
-      pending_transactions =
-        case Map.has_key?(params, "block_number") do
-          true -> []
-          false -> Chain.address_to_pending_transactions(address, pending_options)
-        end
+      pending_transactions = Chain.address_to_pending_transactions(address, pending_options)
 
       render(
         conn,
@@ -57,4 +110,9 @@ defmodule BlockScoutWeb.AddressTransactionController do
         not_found(conn)
     end
   end
+
+  defp get_transactions_and_next_page(address, options) do
+    transactions_plus_one = Chain.address_to_transactions(address, options)
+    split_list_by_page(transactions_plus_one)
+  end
 end

apps/block_scout_web/lib/block_scout_web/controllers/api/rpc/transaction_controller.ex

@@ -3,6 +3,26 @@ defmodule BlockScoutWeb.API.RPC.TransactionController do
 
   alias Explorer.Chain
 
+  def gettxinfo(conn, params) do
+    with {:txhash_param, {:ok, txhash_param}} <- fetch_txhash(params),
+         {:format, {:ok, transaction_hash}} <- to_transaction_hash(txhash_param),
+         {:transaction, {:ok, transaction}} <- transaction_from_hash(transaction_hash) do
+      max_block_number = max_block_number()
+
+      logs = Chain.transaction_to_logs(transaction)
+      render(conn, :gettxinfo, %{transaction: transaction, max_block_number: max_block_number, logs: logs})
+    else
+      {:transaction, :error} ->
+        render(conn, :error, error: "Transaction not found")
+
+      {:txhash_param, :error} ->
+        render(conn, :error, error: "Query parameter txhash is required")
+
+      {:format, :error} ->
+        render(conn, :error, error: "Invalid txhash format")
+    end
+  end
+
   def gettxreceiptstatus(conn, params) do
     with {:txhash_param, {:ok, txhash_param}} <- fetch_txhash(params),
          {:format, {:ok, transaction_hash}} <- to_transaction_hash(txhash_param) do
@@ -35,6 +55,13 @@ defmodule BlockScoutWeb.API.RPC.TransactionController do
     {:txhash_param, Map.fetch(params, "txhash")}
   end
 
+  defp transaction_from_hash(transaction_hash) do
+    case Chain.hash_to_transaction(transaction_hash, necessity_by_association: %{block: :required}) do
+      {:error, :not_found} -> {:transaction, :error}
+      {:ok, transaction} -> {:transaction, {:ok, transaction}}
+    end
+  end
+
   defp to_transaction_hash(transaction_hash_string) do
     {:format, Chain.string_to_transaction_hash(transaction_hash_string)}
   end
@@ -54,4 +81,11 @@ defmodule BlockScoutWeb.API.RPC.TransactionController do
       _ -> ""
     end
   end
+
+  defp max_block_number do
+    case Chain.max_block_number() do
+      {:ok, number} -> number
+      {:error, :not_found} -> 0
+    end
+  end
 end

apps/block_scout_web/lib/block_scout_web/etherscan.ex

@@ -321,6 +321,30 @@ defmodule BlockScoutWeb.Etherscan do
     "result" => nil
   }
 
+  @transaction_gettxinfo_example_value %{
+    "status" => "1",
+    "result" => %{
+      "blockNumber" => "3",
+      "confirmations" => "0",
+      "from" => "0x000000000000000000000000000000000000000c",
+      "gasLimit" => "91966",
+      "gasUsed" => "95123",
+      "hash" => "0x0000000000000000000000000000000000000000000000000000000000000004",
+      "input" => "0x04",
+      "logs" => [
+        %{
+          "address" => "0x000000000000000000000000000000000000000e",
+          "data" => "0x00",
+          "topics" => ["First Topic", "Second Topic", "Third Topic", "Fourth Topic"]
+        }
+      ],
+      "success" => true,
+      "timeStamp" => "1541018182",
+      "to" => "0x000000000000000000000000000000000000000d",
+      "value" => "67612"
+    }
+  }
+
   @transaction_gettxreceiptstatus_example_value %{
     "status" => "1",
     "message" => "OK",
@@ -428,6 +452,28 @@ defmodule BlockScoutWeb.Etherscan do
     example: ~s("18")
   }
 
+  @logs_details %{
+    name: "Log Detail",
+    fields: %{
+      address: @address_hash_type,
+      topics: %{
+        type: "topics",
+        definition: "An array including the topics for the log.",
+        example: ~s(["0xf63780e752c6a54a94fc52715dbc5518a3b4c3c2833d301a204226548a2a8545"])
+      },
+      data: %{
+        type: "data",
+        definition: "Non-indexed log parameters.",
+        example: ~s("0x")
+      },
+      blockNumber: %{
+        type: "block number",
+        definition: "A nonnegative number used to identify blocks.",
+        example: ~s("0x5c958")
+      }
+    }
+  }
+
   @address_balance %{
     name: "AddressBalance",
     fields: %{
@@ -735,6 +781,35 @@ defmodule BlockScoutWeb.Etherscan do
     }
   }
 
+  @transaction_info_model %{
+    name: "TransactionInfo",
+    fields: %{
+      hash: @transaction_hash_type,
+      timeStamp: %{
+        type: "timestamp",
+        definition: "The transaction's block-timestamp.",
+        example: ~s("1439232889")
+      },
+      blockNumber: @block_number_type,
+      confirmations: @confirmation_type,
+      success: %{
+        type: "boolean",
+        definition: "Flag for success during tx execution",
+        example: ~s(true)
+      },
+      from: @address_hash_type,
+      to: @address_hash_type,
+      value: @wei_type,
+      input: @input_type,
+      gasLimit: @wei_type,
+      gasUsed: @gas_type,
+      logs: %{
+        type: "array",
+        array_type: @logs_details
+      }
+    }
+  }
+
   @transaction_status_model %{
     name: "TransactionStatus",
     fields: %{
@@ -1569,6 +1644,43 @@ defmodule BlockScoutWeb.Etherscan do
     ]
   }
 
+  @transaction_gettxinfo_action %{
+    name: "gettxinfo",
+    description: "Get transaction info.",
+    required_params: [
+      %{
+        key: "txhash",
+        placeholder: "transactionHash",
+        type: "string",
+        description: "Transaction hash. Hash of contents of the transaction."
+      }
+    ],
+    optional_params: [],
+    responses: [
+      %{
+        code: "200",
+        description: "successful operation",
+        example_value: Jason.encode!(@transaction_gettxinfo_example_value),
+        model: %{
+          name: "Result",
+          fields: %{
+            status: @status_type,
+            message: @message_type,
+            result: %{
+              type: "model",
+              model: @transaction_info_model
+            }
+          }
+        }
+      },
+      %{
+        code: "200",
+        description: "error",
+        example_value: Jason.encode!(@transaction_gettxreceiptstatus_example_value_error)
+      }
+    ]
+  }
+
   @transaction_gettxreceiptstatus_action %{
     name: "gettxreceiptstatus",
     description: "Get transaction receipt status.",
@@ -1692,6 +1804,7 @@ defmodule BlockScoutWeb.Etherscan do
   @transaction_module %{
     name: "transaction",
     actions: [
+      @transaction_gettxinfo_action,
       @transaction_gettxreceiptstatus_action,
       @transaction_getstatus_action
     ]

apps/block_scout_web/lib/block_scout_web/resolvers/address.ex

@@ -0,0 +1,12 @@
+defmodule BlockScoutWeb.Resolvers.Address do
+  @moduledoc false
+
+  alias Explorer.Chain
+
+  def get_by(_, %{hashes: hashes}, _) do
+    case Chain.hashes_to_addresses(hashes) do
+      [] -> {:error, "Addresses not found."}
+      result -> {:ok, result}
+    end
+  end
+end

apps/block_scout_web/lib/block_scout_web/router.ex

@@ -38,12 +38,18 @@ defmodule BlockScoutWeb.Router do
     })
   end
 
-  forward("/graphql", Absinthe.Plug, schema: BlockScoutWeb.Schema)
+  forward("/graphql", Absinthe.Plug,
+    schema: BlockScoutWeb.Schema,
+    analyze_complexity: true,
+    max_complexity: 50
+  )
 
   forward("/graphiql", Absinthe.Plug.GraphiQL,
     schema: BlockScoutWeb.Schema,
     interface: :playground,
-    socket: BlockScoutWeb.UserSocket
+    socket: BlockScoutWeb.UserSocket,
+    analyze_complexity: true,
+    max_complexity: 50
   )
 
   scope "/", BlockScoutWeb do

apps/block_scout_web/lib/block_scout_web/schema.ex

@@ -3,11 +3,18 @@ defmodule BlockScoutWeb.Schema do
 
   use Absinthe.Schema
 
-  alias BlockScoutWeb.Resolvers.{Block, Transaction}
+  alias BlockScoutWeb.Resolvers.{Address, Block, Transaction}
 
   import_types(BlockScoutWeb.Schema.Types)
 
   query do
+    @desc "Gets addresses by address hash."
+    field :addresses, list_of(:address) do
+      arg(:hashes, non_null(list_of(non_null(:address_hash))))
+      resolve(&Address.get_by/3)
+      complexity(fn %{hashes: hashes}, child_complexity -> length(hashes) * child_complexity end)
+    end
+
     @desc "Gets a block by number."
     field :block, :block do
       arg(:number, non_null(:integer))

apps/block_scout_web/lib/block_scout_web/schema/scalars.ex

@@ -3,7 +3,7 @@ defmodule BlockScoutWeb.Schema.Scalars do
 
   use Absinthe.Schema.Notation
 
-  alias Explorer.Chain.{Hash, Wei}
+  alias Explorer.Chain.{Data, Hash, Wei}
   alias Explorer.Chain.Hash.{Address, Full, Nonce}
 
   @desc """
@@ -24,6 +24,23 @@ defmodule BlockScoutWeb.Schema.Scalars do
     serialize(&to_string/1)
   end
 
+  @desc """
+  An unpadded hexadecimal number with 0 or more digits. Each pair of digits
+  maps directly to a byte in the underlying binary representation. When
+  interpreted as a number, it should be treated as big-endian.
+  """
+  scalar :data do
+    parse(fn
+      %Absinthe.Blueprint.Input.String{value: value} ->
+        Data.cast(value)
+
+      _ ->
+        :error
+    end)
+
+    serialize(&to_string/1)
+  end
+
   @desc """
   A 32-byte [KECCAK-256](https://en.wikipedia.org/wiki/SHA-3) hash.
   """

apps/block_scout_web/lib/block_scout_web/schema/types.ex

@@ -6,12 +6,23 @@ defmodule BlockScoutWeb.Schema.Types do
   import_types(Absinthe.Type.Custom)
   import_types(BlockScoutWeb.Schema.Scalars)
 
+  @desc """
+  A stored representation of a Web3 address.
+  """
+  object :address do
+    field(:hash, :address_hash)
+    field(:fetched_coin_balance, :wei)
+    field(:fetched_coin_balance_block_number, :integer)
+    field(:contract_code, :data)
+  end
+
   @desc """
   A package of data that contains zero or more transactions, the hash of the previous block ("parent"), and optionally
   other data. Because each block (except for the initial "genesis block") points to the previous block, the data
   structure that they form is called a "blockchain".
   """
   object :block do
+    field(:hash, :full_hash)
     field(:consensus, :boolean)
     field(:difficulty, :decimal)
     field(:gas_limit, :decimal)

apps/block_scout_web/lib/block_scout_web/templates/address/_tile.html.eex

@@ -15,7 +15,7 @@
           <!-- number of txns for this address -->
           <span class="mr-4">
             <span data-test="transaction_count">
-              <%= transaction_count(@address) %>
+              <%= @tx_count %>
             </span> <%= gettext "Transactions sent" %>
             <% if validator?(@address) do %>
               <span data-test="validation_count">
@@ -36,7 +36,7 @@
               data-usd-exchange-rate="<%= @exchange_rate.usd_value %>">
             </span>
             <!-- percentage of coins from total supply -->
-            <span class="ml-0 ml-md-2">(<%= balance_percentage(@address) %>)</span>
+            <span class="ml-0 ml-md-2">(<%= balance_percentage(@address, @total_supply) %>)</span>
           </div>
         </div>
       </div>

apps/block_scout_web/lib/block_scout_web/templates/address/index.html.eex

@@ -9,9 +9,10 @@
       </p>
 
       <span data-selector="top-addresses-list">
-        <%= for {address, index} <- Enum.with_index(@addresses, 1) do %>
+        <%= for {{address, tx_count}, index} <- Enum.with_index(@address_tx_count_pairs, 1) do %>
           <%= render "_tile.html", 
             address: address, index: index, exchange_rate: @exchange_rate,
+            total_supply: @total_supply, tx_count: tx_count,
             validation_count: validation_count(address) %> 
         <% end %>
       </span>

apps/block_scout_web/lib/block_scout_web/templates/address_internal_transaction/index.html.eex

@@ -8,12 +8,12 @@
       </div>
 
       <div class="card-body">
-        <div data-selector="channel-batching-message" class="d-none">
+        <div data-selector="channel-batching-message" style="display: none;">
           <div data-selector="reload-button" class="alert alert-info">
             <a href="#" class="alert-link"><span data-selector="channel-batching-count"></span> <%= gettext "More internal transactions have come in" %></a>
           </div>
         </div>
-        <div data-selector="channel-disconnected-message" class="d-none">
+        <div data-selector="channel-disconnected-message" style="display: none;">
           <div data-selector="reload-button" class="alert alert-danger">
             <a href="#" class="alert-link"><%= gettext "Connection Lost, click to load newer internal transactions" %></a>
           </div>

apps/block_scout_web/lib/block_scout_web/templates/address_transaction/index.html.eex

@@ -9,7 +9,7 @@
       </div>
 
       <div class="card-body">
-        <div data-selector="channel-disconnected-message" class="d-none">
+        <div data-selector="channel-disconnected-message" style="display: none;">
           <div data-selector="reload-button" class="alert alert-danger">
             <a href="#" class="alert-link"><%= gettext "Connection Lost, click to load newer transactions" %></a>
           </div>
@@ -52,17 +52,19 @@
         </div>
         <h2 class="card-title"><%= gettext "Transactions" %></h2>
         <div data-selector="pending-transactions-toggle">
-          <%= link to: "#pending-transactions", class: "d-inline-block mb-3", "data-toggle": "collapse" do %>
+          <%= link to: "#pending-transactions-container", class: "d-inline-block mb-3", "data-toggle": "collapse" do %>
             <span data-selector="pending-transactions-open">
             <%= gettext("Show") %></span>
             <span data-selector="pending-transactions-close" class="d-none"><%= gettext("Hide") %></span>
             <span data-selector="pending-transactions-count"><%= length(@pending_transactions) %></span>
             <%= gettext("Pending Transactions") %>
           <% end %>
-          <div class="mb-3 collapse" id="pending-transactions" data-selector="pending-transactions-list">
-            <%= for pending_transaction <- @pending_transactions do %>
-              <%= render(BlockScoutWeb.TransactionView, "_tile.html", current_address: @address, transaction: pending_transaction) %>
-            <% end %>
+          <div class="mb-3 collapse" id="pending-transactions-container">
+            <div data-selector="pending-transactions-list">
+              <%= for pending_transaction <- @pending_transactions do %>
+                <%= render(BlockScoutWeb.TransactionView, "_tile.html", current_address: @address, transaction: pending_transaction) %>
+              <% end %>
+            </div>
             <hr />
           </div>
         </div>
@@ -72,6 +74,17 @@
               <%= render(BlockScoutWeb.TransactionView, "_tile.html", current_address: @address, transaction: transaction) %>
             <% end %>
           </span>
+          <div data-selector="loading-next-page" class="tile tile-muted text-center mt-3" style="display: none;">
+            <span class="loading-spinner-small mr-2">
+              <span class="loading-spinner-block-1"></span>
+              <span class="loading-spinner-block-2"></span>
+            </span>
+            <%= gettext("Loading") %>...
+          </div>
+          <div data-selector="paging-error-message" class="alert alert-danger text-center mt-3" style="display: none;">
+            <%= gettext("Error trying to fetch next page.") %>
+          </div>
+
         <% else %>
           <div class="tile tile-muted text-center">
             <span data-selector="empty-transactions-list"><%= gettext "There are no transactions for this address." %></span>
@@ -82,6 +95,7 @@
           <%= link(
             gettext("Older"),
             class: "button button-secondary button-sm float-right mt-3",
+            "data-selector": "next-page-button",
             to: address_transaction_path(
               @conn,
               :index,

apps/block_scout_web/lib/block_scout_web/templates/address_validation/index.html.eex

@@ -99,7 +99,7 @@
       </div>
 
       <div class="card-body">
-        <div data-selector="channel-disconnected-message" class="d-none">
+        <div data-selector="channel-disconnected-message" style="display: none;">
           <div data-selector="reload-button" class="alert alert-danger">
             <a href="#" class="alert-link"><%= gettext "Connection Lost, click to load newer validations" %></a>
           </div>

apps/block_scout_web/lib/block_scout_web/templates/api_docs/index.html.eex

@@ -4,7 +4,7 @@
 
       <h1 class="card-title mb-0">API Documentation</h2>
       <small class="text-monospace text-primary" data-endpoint-url="<%= BlockScoutWeb.Endpoint.url() %>/api">[ <%= gettext "Base URL:" %> <%= @conn.host %>/api ]</small>
-      <p class="mt-4"><%= gettext "This API is provided for developers transitioning their applications from Etherscan to Explorer. It supports GET and POST requests." %></p>
+      <p class="mt-4"><%= gettext "This API is provided for developers transitioning their applications from Etherscan to BlockScout. It supports GET and POST requests." %></p>
 
     </div>
   </div>

apps/block_scout_web/lib/block_scout_web/templates/internal_transaction/_tile.html.eex

@@ -1,4 +1,4 @@
-<div class="tile tile-type-internal-transaction fade-in" data-test="internal_transaction" data-internal-transaction-transaction-hash="<%= @internal_transaction.transaction_hash %>" data-internal-transaction-index="<%= @internal_transaction.index %>">
+<div class="tile tile-type-internal-transaction fade-in" data-test="internal_transaction" data-key="<%= @internal_transaction.transaction_hash %>_<%= @internal_transaction.index %>" data-internal-transaction-transaction-hash="<%= @internal_transaction.transaction_hash %>" data-internal-transaction-index="<%= @internal_transaction.index %>">
   <div class="row">
     <div class="col-md-2 d-flex flex-row flex-md-column align-items-left justify-content-start justify-content-lg-center mb-1 mb-md-0 pl-md-4">
       <%= gettext("Internal Transaction") %>

apps/block_scout_web/lib/block_scout_web/templates/layout/_topnav.html.eex

@@ -56,13 +56,25 @@
             <%= gettext("Accounts") %>
           <% end %>
         </li>
-        <li class="nav-item">
-          <%= link to: api_docs_path(@conn, :index), class: "nav-link topnav-nav-link" do %>
+        <li class="nav-item dropdown">
+          <a href="#" role="button" id="navbarAPIsDropdown" class="nav-link topnav-nav-link dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
             <span class="nav-link-icon">
               <%= render BlockScoutWeb.IconsView, "_api_icon.html" %>
             </span>
-            <%= gettext("API") %>
-          <% end %>
+            <%= gettext("APIs") %>
+          </a>
+          <div class="dropdown-menu" aria-labeledby="navbarTransactionsDropdown">
+            <%= link(
+                  gettext("GraphQL"),
+                  class: "dropdown-item",
+                  to: "/graphiql"
+                ) %>
+            <%= link(
+                  gettext("RPC"),
+                  class: "dropdown-item",
+                  to: api_docs_path(@conn, :index)
+                ) %>
+          </div>
         </li>
       </ul>
       <div class="search-form d-lg-flex d-inline-block">

apps/block_scout_web/lib/block_scout_web/templates/smart_contract/_function_response.html.eex

@@ -5,6 +5,6 @@
 [<%= for item <- @outputs do %>
 <span class="function-response-item"><%= if named_argument?(item) do %><%= item["name"] %>
 <% end %>
-<span class="text-muted">(<%= item["type"] %>)</span> : <%= values(item["value"]) %></span><% end %>]
+<span class="text-muted">(<%= item["type"] %>)</span> : <%= values(item["value"], item["type"]) %></span><% end %>]
 </pre>
 </div>

apps/block_scout_web/lib/block_scout_web/templates/smart_contract/_functions.html.eex

@@ -45,13 +45,13 @@
                 <div data-wei-ether-converter>
                   <span data-conversion-unit><%= output["value"] %></span>
                   <span class="py-2 px-2">
-                    <input class="wei-ether" type="checkbox" autocomplete="off"> 
+                    <input class="wei-ether" type="checkbox" autocomplete="off">
                     <span class="d-inline-block" data-conversion-text-wei><%= gettext("WEI")%></span>
                     <span class="d-none" data-conversion-text-eth><%= gettext("ETH")%></span>
                   </span>
                 </div>
               <% else %>
-                <%= output["value"] %>
+                <%= values(output["value"], output["type"]) %>
               <% end %>
           <% end %>
         <% end %>

apps/block_scout_web/lib/block_scout_web/templates/transaction/index.html.eex

@@ -9,17 +9,17 @@
         <%= gettext("Validated Transactions") %>
       </p>
 
-      <div data-selector="channel-batching-message" class="d-none">
+      <div data-selector="channel-batching-message" style="display: none;">
         <div data-selector="reload-button" class="alert alert-info">
           <a href="#" class="alert-link"><span data-selector="channel-batching-count"></span> <%= gettext "More transactions have come in" %></a>
         </div>
       </div>
-      <div data-selector="channel-disconnected-message" class="d-none">
+      <div data-selector="channel-disconnected-message" style="display: none;">
         <div data-selector="reload-button" class="alert alert-danger">
           <a href="#" class="alert-link"><%= gettext "Connection Lost, click to load newer transactions" %></a>
         </div>
       </div>
-      
+
       <span data-selector="transactions-list">
         <%= for transaction <- @transactions do %>
           <%= render BlockScoutWeb.TransactionView, "_tile.html", transaction: transaction %>

apps/block_scout_web/lib/block_scout_web/views/address_view.ex

@@ -1,7 +1,7 @@
 defmodule BlockScoutWeb.AddressView do
   use BlockScoutWeb, :view
 
-  import BlockScoutWeb.AddressController, only: [transaction_count: 1, validation_count: 1]
+  import BlockScoutWeb.AddressController, only: [validation_count: 1]
 
   alias BlockScoutWeb.LayoutView
   alias Explorer.Chain
@@ -94,16 +94,20 @@ defmodule BlockScoutWeb.AddressView do
     format_wei_value(balance, :ether)
   end
 
-  def balance_percentage(%Address{fetched_coin_balance: balance}) do
+  def balance_percentage(%Address{fetched_coin_balance: balance}, total_supply) do
     balance
     |> Wei.to(:ether)
-    |> Decimal.div(Decimal.new(Chain.total_supply()))
+    |> Decimal.div(Decimal.new(total_supply))
     |> Decimal.mult(100)
     |> Decimal.round(4)
     |> Decimal.to_string(:normal)
     |> Kernel.<>("% #{gettext("Market Cap")}")
   end
 
+  def balance_percentage(%Address{fetched_coin_balance: _} = address) do
+    balance_percentage(address, Chain.total_supply())
+  end
+
   def balance_block_number(%Address{fetched_coin_balance_block_number: nil}), do: ""
 
   def balance_block_number(%Address{fetched_coin_balance_block_number: fetched_coin_balance_block_number}) do

apps/block_scout_web/lib/block_scout_web/views/api/rpc/transaction_view.ex

@@ -3,6 +3,11 @@ defmodule BlockScoutWeb.API.RPC.TransactionView do
 
   alias BlockScoutWeb.API.RPC.RPCView
 
+  def render("gettxinfo.json", %{transaction: transaction, max_block_number: max_block_number, logs: logs}) do
+    data = prepare_transaction(transaction, max_block_number, logs)
+    RPCView.render("show.json", data: data)
+  end
+
   def render("gettxreceiptstatus.json", %{status: status}) do
     prepared_status = prepare_tx_receipt_status(status)
     RPCView.render("show.json", data: %{"status" => prepared_status})
@@ -44,4 +49,33 @@ defmodule BlockScoutWeb.API.RPC.TransactionView do
       "errDescription" => error |> Atom.to_string() |> String.replace("_", " ")
     }
   end
+
+  defp prepare_transaction(transaction, max_block_number, logs) do
+    %{
+      "hash" => "#{transaction.hash}",
+      "timeStamp" => "#{DateTime.to_unix(transaction.block.timestamp)}",
+      "blockNumber" => "#{transaction.block_number}",
+      "confirmations" => "#{max_block_number - transaction.block_number}",
+      "success" => if(transaction.status == :ok, do: true, else: false),
+      "from" => "#{transaction.from_address_hash}",
+      "to" => "#{transaction.to_address_hash}",
+      "value" => "#{transaction.value.value}",
+      "input" => "#{transaction.input}",
+      "gasLimit" => "#{transaction.gas}",
+      "gasUsed" => "#{transaction.gas_used}",
+      "logs" => Enum.map(logs, &prepare_log/1)
+    }
+  end
+
+  defp prepare_log(log) do
+    %{
+      "address" => "#{log.address_hash}",
+      "topics" => get_topics(log),
+      "data" => "#{log.data}"
+    }
+  end
+
+  defp get_topics(log) do
+    [log.first_topic, log.second_topic, log.third_topic, log.fourth_topic]
+  end
 end

apps/block_scout_web/lib/block_scout_web/views/smart_contract_view.ex

@@ -3,13 +3,24 @@ defmodule BlockScoutWeb.SmartContractView do
 
   def queryable?(inputs), do: Enum.any?(inputs)
 
-  def address?(type), do: type == "address"
+  def address?(type), do: type in ["address", "address payable"]
 
   def named_argument?(%{"name" => ""}), do: false
   def named_argument?(%{"name" => nil}), do: false
   def named_argument?(%{"name" => _}), do: true
   def named_argument?(_), do: false
 
-  def values(values) when is_list(values), do: Enum.join(values, ",")
-  def values(value), do: value
+  def values(addresses, type) when type == "address[]" do
+    addresses
+    |> Enum.map(&values(&1, "address"))
+    |> Enum.join(", ")
+  end
+
+  def values(value, type) when type in ["address", "address payable"] do
+    {:ok, address} = Explorer.Chain.Hash.Address.cast(value)
+    to_string(address)
+  end
+
+  def values(values, _) when is_list(values), do: Enum.join(values, ",")
+  def values(value, _), do: value
 end

apps/block_scout_web/priv/gettext/default.pot

@@ -83,11 +83,6 @@ msgstr ""
 msgid "A string with the name of the module to be invoked."
 msgstr ""
 
-#, elixir-format
-#: lib/block_scout_web/templates/layout/_topnav.html.eex:64
-msgid "API"
-msgstr ""
-
 #, elixir-format
 #: lib/block_scout_web/templates/api_docs/_metatags.html.eex:4
 msgid "API endpoints for the %{subnetwork}"
@@ -233,7 +228,7 @@ msgstr ""
 #: lib/block_scout_web/templates/address_validation/index.html.eex:90
 #: lib/block_scout_web/templates/api_docs/_action_tile.html.eex:119
 #: lib/block_scout_web/templates/api_docs/_action_tile.html.eex:141
-#: lib/block_scout_web/views/address_view.ex:210
+#: lib/block_scout_web/views/address_view.ex:214
 msgid "Code"
 msgstr ""
 
@@ -514,7 +509,7 @@ msgstr ""
 #: lib/block_scout_web/templates/transaction/_tabs.html.eex:14
 #: lib/block_scout_web/templates/transaction/_tabs.html.eex:43
 #: lib/block_scout_web/templates/transaction_internal_transaction/index.html.eex:10
-#: lib/block_scout_web/views/address_view.ex:209
+#: lib/block_scout_web/views/address_view.ex:213
 #: lib/block_scout_web/views/transaction_view.ex:176
 msgid "Internal Transactions"
 msgstr ""
@@ -639,7 +634,7 @@ msgstr ""
 
 #, elixir-format
 #: lib/block_scout_web/templates/address_internal_transaction/index.html.eex:72
-#: lib/block_scout_web/templates/address_transaction/index.html.eex:83
+#: lib/block_scout_web/templates/address_transaction/index.html.eex:96
 #: lib/block_scout_web/templates/address_validation/index.html.eex:117
 #: lib/block_scout_web/templates/block/index.html.eex:20
 #: lib/block_scout_web/templates/block_transaction/index.html.eex:50
@@ -661,12 +656,12 @@ msgid "Owner Address"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/layout/_topnav.html.eex:95
+#: lib/block_scout_web/templates/layout/_topnav.html.eex:107
 msgid "POA Core"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/layout/_topnav.html.eex:94
+#: lib/block_scout_web/templates/layout/_topnav.html.eex:106
 msgid "POA Sokol"
 msgstr ""
 
@@ -731,7 +726,7 @@ msgstr ""
 #: lib/block_scout_web/templates/address_validation/index.html.eex:53
 #: lib/block_scout_web/templates/tokens/overview/_tabs.html.eex:33
 #: lib/block_scout_web/templates/tokens/overview/_tabs.html.eex:75
-#: lib/block_scout_web/views/address_view.ex:211
+#: lib/block_scout_web/views/address_view.ex:215
 #: lib/block_scout_web/views/tokens/overview_view.ex:37
 msgid "Read Contract"
 msgstr ""
@@ -757,13 +752,13 @@ msgid "Responses"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/layout/_topnav.html.eex:71
-#: lib/block_scout_web/templates/layout/_topnav.html.eex:78
+#: lib/block_scout_web/templates/layout/_topnav.html.eex:83
+#: lib/block_scout_web/templates/layout/_topnav.html.eex:90
 msgid "Search"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/layout/_topnav.html.eex:71
+#: lib/block_scout_web/templates/layout/_topnav.html.eex:83
 msgid "Search by address, transaction hash, or block number"
 msgstr ""
 
@@ -858,7 +853,7 @@ msgid "There are no tokens."
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/address_transaction/index.html.eex:77
+#: lib/block_scout_web/templates/address_transaction/index.html.eex:90
 msgid "There are no transactions for this address."
 msgstr ""
 
@@ -872,11 +867,6 @@ msgstr ""
 msgid "There are no transfers for this Token."
 msgstr ""
 
-#, elixir-format
-#: lib/block_scout_web/templates/api_docs/index.html.eex:7
-msgid "This API is provided for developers transitioning their applications from Etherscan to Explorer. It supports GET and POST requests."
-msgstr ""
-
 #, elixir-format
 #: lib/block_scout_web/templates/transaction/overview.html.eex:23
 msgid "This transaction is pending confirmation."
@@ -940,7 +930,7 @@ msgstr ""
 #: lib/block_scout_web/templates/address_validation/index.html.eex:18
 #: lib/block_scout_web/templates/address_validation/index.html.eex:62
 #: lib/block_scout_web/templates/address_validation/index.html.eex:70
-#: lib/block_scout_web/views/address_view.ex:207
+#: lib/block_scout_web/views/address_view.ex:211
 msgid "Tokens"
 msgstr ""
 
@@ -1001,7 +991,7 @@ msgstr ""
 #: lib/block_scout_web/templates/block_transaction/index.html.eex:35
 #: lib/block_scout_web/templates/chain/show.html.eex:71
 #: lib/block_scout_web/templates/layout/_topnav.html.eex:35
-#: lib/block_scout_web/views/address_view.ex:208
+#: lib/block_scout_web/views/address_view.ex:212
 msgid "Transactions"
 msgstr ""
 

apps/block_scout_web/priv/gettext/en/LC_MESSAGES/default.po

@@ -83,11 +83,6 @@ msgstr ""
 msgid "A string with the name of the module to be invoked."
 msgstr ""
 
-#, elixir-format
-#: lib/block_scout_web/templates/layout/_topnav.html.eex:64
-msgid "API"
-msgstr ""
-
 #, elixir-format
 #: lib/block_scout_web/templates/api_docs/_metatags.html.eex:4
 msgid "API endpoints for the %{subnetwork}"
@@ -233,7 +228,7 @@ msgstr ""
 #: lib/block_scout_web/templates/address_validation/index.html.eex:90
 #: lib/block_scout_web/templates/api_docs/_action_tile.html.eex:119
 #: lib/block_scout_web/templates/api_docs/_action_tile.html.eex:141
-#: lib/block_scout_web/views/address_view.ex:210
+#: lib/block_scout_web/views/address_view.ex:214
 msgid "Code"
 msgstr ""
 
@@ -514,7 +509,7 @@ msgstr ""
 #: lib/block_scout_web/templates/transaction/_tabs.html.eex:14
 #: lib/block_scout_web/templates/transaction/_tabs.html.eex:43
 #: lib/block_scout_web/templates/transaction_internal_transaction/index.html.eex:10
-#: lib/block_scout_web/views/address_view.ex:209
+#: lib/block_scout_web/views/address_view.ex:213
 #: lib/block_scout_web/views/transaction_view.ex:176
 msgid "Internal Transactions"
 msgstr ""
@@ -639,7 +634,7 @@ msgstr ""
 
 #, elixir-format
 #: lib/block_scout_web/templates/address_internal_transaction/index.html.eex:72
-#: lib/block_scout_web/templates/address_transaction/index.html.eex:83
+#: lib/block_scout_web/templates/address_transaction/index.html.eex:96
 #: lib/block_scout_web/templates/address_validation/index.html.eex:117
 #: lib/block_scout_web/templates/block/index.html.eex:20
 #: lib/block_scout_web/templates/block_transaction/index.html.eex:50
@@ -661,12 +656,12 @@ msgid "Owner Address"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/layout/_topnav.html.eex:95
+#: lib/block_scout_web/templates/layout/_topnav.html.eex:107
 msgid "POA Core"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/layout/_topnav.html.eex:94
+#: lib/block_scout_web/templates/layout/_topnav.html.eex:106
 msgid "POA Sokol"
 msgstr ""
 
@@ -731,7 +726,7 @@ msgstr ""
 #: lib/block_scout_web/templates/address_validation/index.html.eex:53
 #: lib/block_scout_web/templates/tokens/overview/_tabs.html.eex:33
 #: lib/block_scout_web/templates/tokens/overview/_tabs.html.eex:75
-#: lib/block_scout_web/views/address_view.ex:211
+#: lib/block_scout_web/views/address_view.ex:215
 #: lib/block_scout_web/views/tokens/overview_view.ex:37
 msgid "Read Contract"
 msgstr ""
@@ -757,13 +752,13 @@ msgid "Responses"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/layout/_topnav.html.eex:71
-#: lib/block_scout_web/templates/layout/_topnav.html.eex:78
+#: lib/block_scout_web/templates/layout/_topnav.html.eex:83
+#: lib/block_scout_web/templates/layout/_topnav.html.eex:90
 msgid "Search"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/layout/_topnav.html.eex:71
+#: lib/block_scout_web/templates/layout/_topnav.html.eex:83
 msgid "Search by address, transaction hash, or block number"
 msgstr ""
 
@@ -858,7 +853,7 @@ msgid "There are no tokens."
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/address_transaction/index.html.eex:77
+#: lib/block_scout_web/templates/address_transaction/index.html.eex:90
 msgid "There are no transactions for this address."
 msgstr ""
 
@@ -872,11 +867,6 @@ msgstr ""
 msgid "There are no transfers for this Token."
 msgstr ""
 
-#, elixir-format
-#: lib/block_scout_web/templates/api_docs/index.html.eex:7
-msgid "This API is provided for developers transitioning their applications from Etherscan to Explorer. It supports GET and POST requests."
-msgstr ""
-
 #, elixir-format
 #: lib/block_scout_web/templates/transaction/overview.html.eex:23
 msgid "This transaction is pending confirmation."
@@ -940,7 +930,7 @@ msgstr ""
 #: lib/block_scout_web/templates/address_validation/index.html.eex:18
 #: lib/block_scout_web/templates/address_validation/index.html.eex:62
 #: lib/block_scout_web/templates/address_validation/index.html.eex:70
-#: lib/block_scout_web/views/address_view.ex:207
+#: lib/block_scout_web/views/address_view.ex:211
 msgid "Tokens"
 msgstr ""
 
@@ -1001,7 +991,7 @@ msgstr ""
 #: lib/block_scout_web/templates/block_transaction/index.html.eex:35
 #: lib/block_scout_web/templates/chain/show.html.eex:71
 #: lib/block_scout_web/templates/layout/_topnav.html.eex:35
-#: lib/block_scout_web/views/address_view.ex:208
+#: lib/block_scout_web/views/address_view.ex:212
 msgid "Transactions"
 msgstr ""
 

apps/block_scout_web/test/block_scout_web/controllers/address_controller_test.exs

@@ -10,7 +10,9 @@ defmodule BlockScoutWeb.AddressControllerTest do
 
       conn = get(conn, address_path(conn, :index))
 
-      assert conn.assigns.addresses |> Enum.map(& &1.hash) == address_hashes
+      assert conn.assigns.address_tx_count_pairs
+             |> Enum.map(fn {address, _transaction_count} -> address end)
+             |> Enum.map(& &1.hash) == address_hashes
     end
   end
 

apps/block_scout_web/test/block_scout_web/controllers/address_transaction_controller_test.exs

@@ -76,7 +76,7 @@ defmodule BlockScoutWeb.AddressTransactionControllerTest do
         50
         |> insert_list(:transaction, from_address: address)
         |> with_block()
-        |> Enum.map(& &1.hash)
+        |> Enum.map(&to_string(&1.hash))
 
       %Transaction{block_number: block_number, index: index} =
         :transaction
@@ -85,47 +85,21 @@ defmodule BlockScoutWeb.AddressTransactionControllerTest do
 
       conn =
         get(conn, address_transaction_path(BlockScoutWeb.Endpoint, :index, address.hash), %{
+          "type" => "JSON",
           "block_number" => Integer.to_string(block_number),
           "index" => Integer.to_string(index)
         })
 
+      {:ok, %{"transactions" => transactions}} = conn.resp_body |> Poison.decode()
+
       actual_hashes =
-        conn.assigns.transactions
-        |> Enum.map(& &1.hash)
+        transactions
+        |> Enum.map(& &1["transaction_hash"])
         |> Enum.reverse()
 
       assert second_page_hashes == actual_hashes
     end
 
-    test "does not return pending transactions if beyond page one", %{conn: conn} do
-      address = insert(:address)
-
-      50
-      |> insert_list(:transaction, from_address: address)
-      |> with_block()
-      |> Enum.map(& &1.hash)
-
-      %Transaction{block_number: block_number, index: index} =
-        :transaction
-        |> insert(from_address: address)
-        |> with_block()
-
-      pending = insert(:transaction, from_address: address, to_address: address)
-
-      conn =
-        get(conn, address_transaction_path(BlockScoutWeb.Endpoint, :index, address.hash), %{
-          "block_number" => Integer.to_string(block_number),
-          "index" => Integer.to_string(index)
-        })
-
-      actual_pending_hashes =
-        conn.assigns.pending_transactions
-        |> Enum.map(& &1.hash)
-        |> Enum.reverse()
-
-      refute Enum.member?(actual_pending_hashes, pending.hash)
-    end
-
     test "next_page_params exist if not on last page", %{conn: conn} do
       address = insert(:address)
       block = %Block{number: number} = insert(:block)

apps/block_scout_web/test/block_scout_web/controllers/api/rpc/transaction_controller_test.exs

@@ -310,4 +310,114 @@ defmodule BlockScoutWeb.API.RPC.TransactionControllerTest do
       assert response["message"] == "OK"
     end
   end
+
+  describe "gettxinfo" do
+    test "with missing txhash", %{conn: conn} do
+      params = %{
+        "module" => "transaction",
+        "action" => "gettxinfo"
+      }
+
+      assert response =
+               conn
+               |> get("/api", params)
+               |> json_response(200)
+
+      assert response["message"] =~ "txhash is required"
+      assert response["status"] == "0"
+      assert Map.has_key?(response, "result")
+      refute response["result"]
+    end
+
+    test "with an invalid txhash", %{conn: conn} do
+      params = %{
+        "module" => "transaction",
+        "action" => "gettxinfo",
+        "txhash" => "badhash"
+      }
+
+      assert response =
+               conn
+               |> get("/api", params)
+               |> json_response(200)
+
+      assert response["message"] =~ "Invalid txhash format"
+      assert response["status"] == "0"
+      assert Map.has_key?(response, "result")
+      refute response["result"]
+    end
+
+    test "with a txhash that doesn't exist", %{conn: conn} do
+      params = %{
+        "module" => "transaction",
+        "action" => "gettxinfo",
+        "txhash" => "0x40eb908387324f2b575b4879cd9d7188f69c8fc9d87c901b9e2daaea4b442170"
+      }
+
+      assert response =
+               conn
+               |> get("/api", params)
+               |> json_response(200)
+
+      assert response["message"] =~ "Transaction not found"
+      assert response["status"] == "0"
+      assert Map.has_key?(response, "result")
+      refute response["result"]
+    end
+
+    test "with a txhash with ok status", %{conn: conn} do
+      block = insert(:block)
+
+      transaction =
+        :transaction
+        |> insert()
+        |> with_block(block, status: :ok)
+
+      address = insert(:address)
+
+      log =
+        insert(:log,
+          address: address,
+          transaction: transaction,
+          first_topic: "first topic",
+          second_topic: "second topic"
+        )
+
+      params = %{
+        "module" => "transaction",
+        "action" => "gettxinfo",
+        "txhash" => "#{transaction.hash}"
+      }
+
+      expected_result = %{
+        "hash" => "#{transaction.hash}",
+        "timeStamp" => "#{DateTime.to_unix(transaction.block.timestamp)}",
+        "blockNumber" => "#{transaction.block_number}",
+        "confirmations" => "0",
+        "success" => true,
+        "from" => "#{transaction.from_address_hash}",
+        "to" => "#{transaction.to_address_hash}",
+        "value" => "#{transaction.value.value}",
+        "input" => "#{transaction.input}",
+        "gasLimit" => "#{transaction.gas}",
+        "gasUsed" => "#{transaction.gas_used}",
+        "logs" => [
+          %{
+            "address" => "#{address}",
+            "data" => "#{log.data}",
+            "topics" => ["first topic", "second topic", nil, nil]
+          }
+        ]
+      }
+
+      assert response =
+               conn
+               |> get("/api", params)
+               |> json_response(200)
+
+      assert response["result"] == expected_result
+      assert response["status"] == "1"
+      assert response["message"] == "OK"
+    end
+  end
 end

apps/block_scout_web/test/block_scout_web/controllers/tokens/holder_controller_test.exs

@@ -22,7 +22,7 @@ defmodule BlockScoutWeb.Tokens.HolderControllerTest do
 
       insert_list(
         2,
-        :token_balance,
+        :address_current_token_balance,
         token_contract_address_hash: token.contract_address_hash
       )
 
@@ -43,7 +43,7 @@ defmodule BlockScoutWeb.Tokens.HolderControllerTest do
         1..50
         |> Enum.map(
           &insert(
-            :token_balance,
+            :address_current_token_balance,
             token_contract_address_hash: token.contract_address_hash,
             value: &1 + 1000
           )
@@ -52,7 +52,7 @@ defmodule BlockScoutWeb.Tokens.HolderControllerTest do
 
       token_balance =
         insert(
-          :token_balance,
+          :address_current_token_balance,
           token_contract_address_hash: token.contract_address_hash,
           value: 50000
         )
@@ -78,7 +78,7 @@ defmodule BlockScoutWeb.Tokens.HolderControllerTest do
       Enum.each(
         1..51,
         &insert(
-          :token_balance,
+          :address_current_token_balance,
           token_contract_address_hash: token.contract_address_hash,
           value: &1 + 1000
         )

apps/block_scout_web/test/block_scout_web/features/viewing_tokens_test.exs

@@ -9,7 +9,7 @@ defmodule BlockScoutWeb.ViewingTokensTest do
 
       insert_list(
         2,
-        :token_balance,
+        :address_current_token_balance,
         token_contract_address_hash: token.contract_address_hash
       )
 

apps/block_scout_web/test/block_scout_web/schema/query/address_test.exs

@@ -0,0 +1,142 @@
+defmodule BlockScoutWeb.Schema.Query.AddressTest do
+  use BlockScoutWeb.ConnCase
+
+  describe "address field" do
+    test "with valid argument 'hashes', returns all expected fields", %{conn: conn} do
+      address = insert(:address, fetched_coin_balance: 100)
+
+      query = """
+      query ($hashes: [AddressHash!]!) {
+        addresses(hashes: $hashes) {
+          hash
+          fetched_coin_balance
+          fetched_coin_balance_block_number
+          contract_code
+        }
+      }
+      """
+
+      variables = %{"hashes" => to_string(address.hash)}
+
+      conn = get(conn, "/graphql", query: query, variables: variables)
+
+      assert json_response(conn, 200) == %{
+               "data" => %{
+                 "addresses" => [
+                   %{
+                     "hash" => to_string(address.hash),
+                     "fetched_coin_balance" => to_string(address.fetched_coin_balance.value),
+                     "fetched_coin_balance_block_number" => address.fetched_coin_balance_block_number,
+                     "contract_code" => nil
+                   }
+                 ]
+               }
+             }
+    end
+
+    test "with contract address, `contract_code` is serialized as expected", %{conn: conn} do
+      address = insert(:contract_address, fetched_coin_balance: 100)
+
+      query = """
+      query ($hashes: [AddressHash!]!) {
+        addresses(hashes: $hashes) {
+          contract_code
+        }
+      }
+      """
+
+      variables = %{"hashes" => to_string(address.hash)}
+
+      conn = get(conn, "/graphql", query: query, variables: variables)
+
+      assert json_response(conn, 200) == %{
+               "data" => %{
+                 "addresses" => [
+                   %{
+                     "contract_code" => to_string(address.contract_code)
+                   }
+                 ]
+               }
+             }
+    end
+
+    test "errors for non-existent address hashes", %{conn: conn} do
+      address = build(:address)
+
+      query = """
+      query ($hashes: [AddressHash!]!) {
+        addresses(hashes: $hashes) {
+          fetched_coin_balance
+        }
+      }
+      """
+
+      variables = %{"hashes" => [to_string(address.hash)]}
+
+      conn = get(conn, "/graphql", query: query, variables: variables)
+
+      assert %{"errors" => [error]} = json_response(conn, 200)
+      assert error["message"] =~ ~s(Addresses not found.)
+    end
+
+    test "errors if argument 'hashes' is missing", %{conn: conn} do
+      query = """
+      query {
+        addresses {
+          fetched_coin_balance
+        }
+      }
+      """
+
+      variables = %{}
+
+      conn = get(conn, "/graphql", query: query, variables: variables)
+
+      assert %{"errors" => [error]} = json_response(conn, 200)
+      assert error["message"] == ~s(In argument "hashes": Expected type "[AddressHash!]!", found null.)
+    end
+
+    test "errors if argument 'hashes' is not a list of address hashes", %{conn: conn} do
+      query = """
+      query ($hashes: [AddressHash!]!) {
+        addresses(hashes: $hashes) {
+          fetched_coin_balance
+        }
+      }
+      """
+
+      variables = %{"hashes" => ["someInvalidHash"]}
+
+      conn = get(conn, "/graphql", query: query, variables: variables)
+
+      assert %{"errors" => [error]} = json_response(conn, 200)
+      assert error["message"] =~ ~s(Argument "hashes" has invalid value)
+    end
+
+    test "correlates complexity to size of 'hashes' argument", %{conn: conn} do
+      # max of 12 addresses with four fields of complexity 1 can be fetched
+      # per query:
+      # 12 * 4 = 48, which is less than a max complexity of 50
+      hashes = 13 |> build_list(:address) |> Enum.map(&to_string(&1.hash))
+
+      query = """
+      query ($hashes: [AddressHash!]!) {
+        addresses(hashes: $hashes) {
+          hash
+          fetched_coin_balance
+          fetched_coin_balance_block_number
+          contract_code
+        }
+      }
+      """
+
+      variables = %{"hashes" => hashes}
+
+      conn = get(conn, "/graphql", query: query, variables: variables)
+
+      assert %{"errors" => [error1, error2]} = json_response(conn, 200)
+      assert error1["message"] =~ ~s(Field addresses is too complex)
+      assert error2["message"] =~ ~s(Operation is too complex)
+    end
+  end
+end

apps/block_scout_web/test/block_scout_web/schema/query/block_test.exs

@@ -8,6 +8,7 @@ defmodule BlockScoutWeb.Schema.Query.BlockTest do
       query = """
       query ($number: Int!) {
         block(number: $number) {
+          hash
           consensus
           difficulty
           gas_limit
@@ -31,6 +32,7 @@ defmodule BlockScoutWeb.Schema.Query.BlockTest do
       assert json_response(conn, 200) == %{
                "data" => %{
                  "block" => %{
+                   "hash" => to_string(block.hash),
                    "consensus" => block.consensus,
                    "difficulty" => to_string(block.difficulty),
                    "gas_limit" => to_string(block.gas_limit),

apps/block_scout_web/test/block_scout_web/views/tokens/smart_contract_view_test.exs

@@ -24,6 +24,12 @@ defmodule BlockScoutWeb.SmartContractViewTest do
       assert SmartContractView.address?(type)
     end
 
+    test "returns true when the type is equal to the string 'address payable'" do
+      type = "address payable"
+
+      assert SmartContractView.address?(type)
+    end
+
     test "returns false when the type is not equal the string 'address'" do
       type = "name"
 
@@ -57,17 +63,37 @@ defmodule BlockScoutWeb.SmartContractViewTest do
     end
   end
 
-  describe "values/1" do
-    test "joins the values when it is a list" do
+  describe "values/2" do
+    test "joins the values when it is a list of a given type" do
       values = [8, 6, 9, 2, 2, 37]
 
-      assert SmartContractView.values(values) == "8,6,9,2,2,37"
+      assert SmartContractView.values(values, "type") == "8,6,9,2,2,37"
+    end
+
+    test "convert the value to string receiving a value and the 'address' type" do
+      value = <<95, 38, 9, 115, 52, 182, 163, 43, 121, 81, 223, 97, 253, 12, 88, 3, 236, 93, 131, 84>>
+      assert SmartContractView.values(value, "address") == "0x5f26097334b6a32b7951df61fd0c5803ec5d8354"
+    end
+
+    test "convert the value to string receiving a value and the 'address payable' type" do
+      value = <<95, 38, 9, 115, 52, 182, 163, 43, 121, 81, 223, 97, 253, 12, 88, 3, 236, 93, 131, 84>>
+      assert SmartContractView.values(value, "address payable") == "0x5f26097334b6a32b7951df61fd0c5803ec5d8354"
+    end
+
+    test "convert each value to string and join them when receiving 'address[]' as the type" do
+      value = [
+        <<95, 38, 9, 115, 52, 182, 163, 43, 121, 81, 223, 97, 253, 12, 88, 3, 236, 93, 131, 84>>,
+        <<207, 38, 14, 163, 23, 85, 86, 55, 197, 95, 112, 229, 93, 186, 141, 90, 216, 65, 76, 176>>
+      ]
+
+      assert SmartContractView.values(value, "address[]") ==
+               "0x5f26097334b6a32b7951df61fd0c5803ec5d8354, 0xcf260ea317555637c55f70e55dba8d5ad8414cb0"
     end
 
-    test "returns the value" do
+    test "returns the value when the type is neither 'address' nor 'address payable'" do
       value = "POA"
 
-      assert SmartContractView.values(value) == "POA"
+      assert SmartContractView.values(value, "not address") == "POA"
     end
   end
 end

apps/ethereum_jsonrpc/lib/ethereum_jsonrpc/block.ex

@@ -11,16 +11,23 @@ defmodule EthereumJSONRPC.Block do
   @type elixir :: %{String.t() => non_neg_integer | DateTime.t() | String.t() | nil}
   @type params :: %{
           difficulty: pos_integer(),
+          extra_data: EthereumJSONRPC.hash(),
           gas_limit: non_neg_integer(),
           gas_used: non_neg_integer(),
           hash: EthereumJSONRPC.hash(),
+          logs_bloom: EthereumJSONRPC.hash(),
           miner_hash: EthereumJSONRPC.hash(),
+          mix_hash: EthereumJSONRPC.hash(),
           nonce: EthereumJSONRPC.hash(),
           number: non_neg_integer(),
           parent_hash: EthereumJSONRPC.hash(),
+          receipts_root: EthereumJSONRPC.hash(),
+          sha3_uncles: EthereumJSONRPC.hash(),
           size: non_neg_integer(),
+          state_root: EthereumJSONRPC.hash(),
           timestamp: DateTime.t(),
           total_difficulty: non_neg_integer(),
+          transactions_root: EthereumJSONRPC.hash(),
           uncles: [EthereumJSONRPC.hash()]
         }
 
@@ -95,16 +102,23 @@ defmodule EthereumJSONRPC.Block do
       ...> )
       %{
         difficulty: 340282366920938463463374607431465537093,
+        extra_data: "0xd5830108048650617269747986312e32322e31826c69",
         gas_limit: 6706541,
         gas_used: 0,
         hash: "0x52c867bc0a91e573dc39300143c3bead7408d09d45bdb686749f02684ece72f3",
+        logs_bloom: "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
         miner_hash: "0xe8ddc5c7a2d2f0d7a9798459c0104fdf5e987aca",
+        mix_hash: "0x0",
         nonce: 0,
         number: 1,
         parent_hash: "0x5b28c1bfd3a15230c9a46b399cd0f9a6920d432e85381cc6a140b06e8410112f",
+        receipts_root: "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
+        sha3_uncles: "0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347",
         size: 576,
+        state_root: "0xc196ad59d867542ef20b29df5f418d07dc7234f4bc3d25260526620b7958a8fb",
         timestamp: Timex.parse!("2017-12-15T21:03:30Z", "{ISO:Extended:Z}"),
         total_difficulty: 340282366920938463463374607431465668165,
+        transactions_root: "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
         uncles: []
       }
 
@@ -136,16 +150,23 @@ defmodule EthereumJSONRPC.Block do
       ...> )
       %{
         difficulty: 17561410778,
+        extra_data: "0x476574682f4c5649562f76312e302e302f6c696e75782f676f312e342e32",
         gas_limit: 5000,
         gas_used: 0,
         hash: "0x4d9423080290a650eaf6db19c87c76dff83d1b4ab64aefe6e5c5aa2d1f4b6623",
+        logs_bloom: "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
+        mix_hash: "0xbbb93d610b2b0296a59f18474ac3d6086a9902aa7ca4b9a306692f7c3d496fdf",
         miner_hash: "0xbb7b8287f3f0a933474a79eae42cbca977791171",
         nonce: 5539500215739777653,
         number: 59,
         parent_hash: "0xcd5b5c4cecd7f18a13fe974255badffd58e737dc67596d56bc01f063dd282e9e",
+        receipts_root: "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
+        sha3_uncles: "0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347",
         size: 542,
+        state_root: "0x6fd0a5d82ca77d9f38c3ebbde11b11d304a5fcf3854f291df64395ab38ed43ba",
         timestamp: Timex.parse!("2015-07-30T15:32:07Z", "{ISO:Extended:Z}"),
         total_difficulty: 1039309006117,
+        transactions_root: "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
         uncles: []
       }
 
@@ -154,30 +175,43 @@ defmodule EthereumJSONRPC.Block do
   def elixir_to_params(
         %{
           "difficulty" => difficulty,
+          "extraData" => extra_data,
           "gasLimit" => gas_limit,
           "gasUsed" => gas_used,
           "hash" => hash,
+          "logsBloom" => logs_bloom,
           "miner" => miner_hash,
           "number" => number,
           "parentHash" => parent_hash,
+          "receiptsRoot" => receipts_root,
+          "sha3Uncles" => sha3_uncles,
           "size" => size,
+          "stateRoot" => state_root,
           "timestamp" => timestamp,
           "totalDifficulty" => total_difficulty,
+          "transactionsRoot" => transactions_root,
           "uncles" => uncles
         } = elixir
       ) do
     %{
       difficulty: difficulty,
+      extra_data: extra_data,
       gas_limit: gas_limit,
       gas_used: gas_used,
       hash: hash,
+      logs_bloom: logs_bloom,
       miner_hash: miner_hash,
+      mix_hash: Map.get(elixir, "mixHash", "0x0"),
       nonce: Map.get(elixir, "nonce", 0),
       number: number,
       parent_hash: parent_hash,
+      receipts_root: receipts_root,
+      sha3_uncles: sha3_uncles,
       size: size,
+      state_root: state_root,
       timestamp: timestamp,
       total_difficulty: total_difficulty,
+      transactions_root: transactions_root,
       uncles: uncles
     }
   end

apps/ethereum_jsonrpc/lib/ethereum_jsonrpc/blocks.ex

@@ -45,16 +45,23 @@ defmodule EthereumJSONRPC.Blocks do
       [
         %{
           difficulty: 131072,
+          extra_data: "0x",
           gas_limit: 6700000,
           gas_used: 0,
           hash: "0x5b28c1bfd3a15230c9a46b399cd0f9a6920d432e85381cc6a140b06e8410112f",
+          logs_bloom: "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
           miner_hash: "0x0000000000000000000000000000000000000000",
+          mix_hash: "0x0",
           nonce: 0,
           number: 0,
           parent_hash: "0x0000000000000000000000000000000000000000000000000000000000000000",
+          receipts_root: "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
+          sha3_uncles: "0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347",
           size: 533,
+          state_root: "0xfad4af258fd11939fae0c6c6eec9d340b1caac0b0196fd9a1bc3f489c5bf00b3",
           timestamp: Timex.parse!("1970-01-01T00:00:00Z", "{ISO:Extended:Z}"),
           total_difficulty: 131072,
+          transactions_root: "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
           uncles: ["0xe670ec64341771606e55d6b4ca35a1a6b75ee3d5145a99d05921026d15273311"]
         }
       ]

apps/ethereum_jsonrpc/test/ethereum_jsonrpc/request_coordinator_test.exs

@@ -10,15 +10,6 @@ defmodule EthereumJSONRPC.RequestCoordinatorTest do
   setup :set_mox_global
   setup :verify_on_exit!
 
-  defp sleep_time(timeouts) do
-    wait_per_timeout =
-      :ethereum_jsonrpc
-      |> Application.get_env(RequestCoordinator)
-      |> Keyword.fetch!(:wait_per_timeout)
-
-    timeouts * wait_per_timeout
-  end
-
   setup do
     table = Application.get_env(:ethereum_jsonrpc, EthereumJSONRPC.RequestCoordinator)[:rolling_window_opts][:table]
 

apps/ethereum_jsonrpc/test/ethereum_jsonrpc/web_socket/web_socket_client_test.exs

@@ -95,18 +95,6 @@ defmodule EthereumJSONRPC.WebSocket.WebSocketClientTest do
     end
   end
 
-  defp cowboy(0) do
-    dispatch = :cowboy_router.compile([{:_, [{"/websocket", EthereumJSONRPC.WebSocket.Cowboy.WebSocketHandler, []}]}])
-    {:ok, _} = :cowboy.start_http(EthereumJSONRPC.WebSocket.Cowboy, 100, [], env: [dispatch: dispatch])
-    :ranch.get_port(EthereumJSONRPC.WebSocket.Cowboy)
-  end
-
-  defp cowboy(port) do
-    dispatch = :cowboy_router.compile([{:_, [{"/websocket", EthereumJSONRPC.WebSocket.Cowboy.WebSocketHandler, []}]}])
-    {:ok, _} = :cowboy.start_http(EthereumJSONRPC.WebSocket.Cowboy, 100, [port: port], env: [dispatch: dispatch])
-    port
-  end
-
   defp example_state(_) do
     %{state: %WebSocketClient{url: "ws://example.com"}}
   end

apps/ethereum_jsonrpc/test/ethereum_jsonrpc_test.exs

@@ -207,10 +207,15 @@ defmodule EthereumJSONRPCTest do
                  "gasLimit" => "0x0",
                  "gasUsed" => "0x0",
                  "hash" => block_hash,
+                 "extraData" => "0x0",
+                 "logsBloom" => "0x0",
                  "miner" => "0x0",
                  "number" => block_number,
                  "parentHash" => "0x0",
+                 "receiptsRoot" => "0x0",
                  "size" => "0x0",
+                 "sha3Uncles" => "0x0",
+                 "stateRoot" => "0x0",
                  "timestamp" => "0x0",
                  "totalDifficulty" => "0x0",
                  "transactions" => [
@@ -231,6 +236,7 @@ defmodule EthereumJSONRPCTest do
                      "value" => "0x0"
                    }
                  ],
+                 "transactionsRoot" => "0x0",
                  "uncles" => []
                }
              }
@@ -364,16 +370,22 @@ defmodule EthereumJSONRPCTest do
              id: 0,
              result: %{
                "difficulty" => "0x0",
+               "extraData" => "0x0",
                "gasLimit" => "0x0",
                "gasUsed" => "0x0",
                "hash" => "0x0",
+               "logsBloom" => "0x0",
                "miner" => "0x0",
                "number" => "0x0",
                "parentHash" => "0x0",
+               "receiptsRoot" => "0x0",
+               "sha3Uncles" => "0x0",
                "size" => "0x0",
+               "stateRoot" => "0x0",
                "timestamp" => "0x0",
                "totalDifficulty" => "0x0",
                "transactions" => [],
+               "transactionsRoot" => "0x0",
                "uncles" => []
              },
              jsonrpc: "2.0"

apps/explorer/lib/explorer/chain.ex

@@ -23,6 +23,7 @@ defmodule Explorer.Chain do
   alias Explorer.Chain.{
     Address,
     Address.CoinBalance,
+    Address.CurrentTokenBalance,
     Address.TokenBalance,
     Block,
     Data,
@@ -919,13 +920,20 @@ defmodule Explorer.Chain do
   Lists the top 250 `t:Explorer.Chain.Address.t/0`'s' in descending order based on coin balance.
 
   """
-  @spec list_top_addresses :: [Address.t()]
+  @spec list_top_addresses :: [{Address.t(), non_neg_integer()}]
   def list_top_addresses do
-    Address
-    |> limit(250)
-    |> order_by(desc: :fetched_coin_balance, asc: :hash)
-    |> where([address], address.fetched_coin_balance > ^0)
-    |> Repo.all()
+    query =
+      from(a in Address,
+        left_join: t in Transaction,
+        on: a.hash == t.from_address_hash,
+        where: a.fetched_coin_balance > ^0,
+        group_by: [a.hash, a.fetched_coin_balance],
+        order_by: [desc: a.fetched_coin_balance, asc: a.hash],
+        select: {a, fragment("coalesce(1 + max(?), 0)", t.nonce)},
+        limit: 250
+      )
+
+    Repo.all(query)
   end
 
   @doc """
@@ -2070,7 +2078,7 @@ defmodule Explorer.Chain do
   @spec fetch_token_holders_from_token_hash(Hash.Address.t(), [paging_options]) :: [TokenBalance.t()]
   def fetch_token_holders_from_token_hash(contract_address_hash, options) do
     contract_address_hash
-    |> TokenBalance.token_holders_ordered_by_value(options)
+    |> CurrentTokenBalance.token_holders_ordered_by_value(options)
     |> Repo.all()
   end
 

apps/explorer/lib/explorer/chain/address/current_token_balance.ex

@@ -0,0 +1,108 @@
+defmodule Explorer.Chain.Address.CurrentTokenBalance do
+  @moduledoc """
+  Represents the current token balance from addresses according to the last block.
+  """
+
+  use Ecto.Schema
+  import Ecto.Changeset
+  import Ecto.Query, only: [from: 2, limit: 2, order_by: 3, preload: 2, where: 3]
+
+  alias Explorer.{Chain, PagingOptions}
+  alias Explorer.Chain.{Address, Block, Hash, Token}
+
+  @default_paging_options %PagingOptions{page_size: 50}
+
+  @typedoc """
+   *  `address` - The `t:Explorer.Chain.Address.t/0` that is the balance's owner.
+   *  `address_hash` - The address hash foreign key.
+   *  `token` - The `t:Explorer.Chain.Token/0` so that the address has the balance.
+   *  `token_contract_address_hash` - The contract address hash foreign key.
+   *  `block_number` - The block's number that the transfer took place.
+   *  `value` - The value that's represents the balance.
+  """
+  @type t :: %__MODULE__{
+          address: %Ecto.Association.NotLoaded{} | Address.t(),
+          address_hash: Hash.Address.t(),
+          token: %Ecto.Association.NotLoaded{} | Token.t(),
+          token_contract_address_hash: Hash.Address,
+          block_number: Block.block_number(),
+          inserted_at: DateTime.t(),
+          updated_at: DateTime.t(),
+          value: Decimal.t() | nil
+        }
+
+  schema "address_current_token_balances" do
+    field(:value, :decimal)
+    field(:block_number, :integer)
+    field(:value_fetched_at, :utc_datetime)
+
+    belongs_to(:address, Address, foreign_key: :address_hash, references: :hash, type: Hash.Address)
+
+    belongs_to(
+      :token,
+      Token,
+      foreign_key: :token_contract_address_hash,
+      references: :contract_address_hash,
+      type: Hash.Address
+    )
+
+    timestamps()
+  end
+
+  @optional_fields ~w(value value_fetched_at)a
+  @required_fields ~w(address_hash block_number token_contract_address_hash)a
+  @allowed_fields @optional_fields ++ @required_fields
+
+  @doc false
+  def changeset(%__MODULE__{} = token_balance, attrs) do
+    token_balance
+    |> cast(attrs, @allowed_fields)
+    |> validate_required(@required_fields)
+    |> foreign_key_constraint(:address_hash)
+    |> foreign_key_constraint(:token_contract_address_hash)
+  end
+
+  {:ok, burn_address_hash} = Chain.string_to_address_hash("0x0000000000000000000000000000000000000000")
+  @burn_address_hash burn_address_hash
+
+  @doc """
+  Builds an `Ecto.Query` to fetch the token holders from the given token contract address hash.
+
+  The Token Holders are the addresses that own a positive amount of the Token. So this query is
+  considering the following conditions:
+
+  * The token balance from the last block.
+  * Balances greater than 0.
+  * Excluding the burn address (0x0000000000000000000000000000000000000000).
+
+  """
+  def token_holders_ordered_by_value(token_contract_address_hash, options \\ []) do
+    paging_options = Keyword.get(options, :paging_options, @default_paging_options)
+
+    token_contract_address_hash
+    |> token_holders_query
+    |> preload(:address)
+    |> order_by([tb], desc: :value)
+    |> page_token_balances(paging_options)
+    |> limit(^paging_options.page_size)
+  end
+
+  defp token_holders_query(token_contract_address_hash) do
+    from(
+      tb in __MODULE__,
+      where: tb.token_contract_address_hash == ^token_contract_address_hash,
+      where: tb.address_hash != ^@burn_address_hash,
+      where: tb.value > 0
+    )
+  end
+
+  defp page_token_balances(query, %PagingOptions{key: nil}), do: query
+
+  defp page_token_balances(query, %PagingOptions{key: {value, address_hash}}) do
+    where(
+      query,
+      [tb],
+      tb.value < ^value or (tb.value == ^value and tb.address_hash < ^address_hash)
+    )
+  end
+end

apps/explorer/lib/explorer/chain/address/token_balance.ex

@@ -5,14 +5,12 @@ defmodule Explorer.Chain.Address.TokenBalance do
 
   use Ecto.Schema
   import Ecto.Changeset
-  import Ecto.Query, only: [from: 2, limit: 2, where: 3, subquery: 1, order_by: 3, preload: 2]
+  import Ecto.Query, only: [from: 2, subquery: 1]
 
-  alias Explorer.{Chain, PagingOptions}
+  alias Explorer.Chain
   alias Explorer.Chain.Address.TokenBalance
   alias Explorer.Chain.{Address, Block, Hash, Token}
 
-  @default_paging_options %PagingOptions{page_size: 50}
-
   @typedoc """
    *  `address` - The `t:Explorer.Chain.Address.t/0` that is the balance's owner.
    *  `address_hash` - The address hash foreign key.
@@ -84,43 +82,6 @@ defmodule Explorer.Chain.Address.TokenBalance do
     from(tb in subquery(query), where: tb.value > 0, preload: :token)
   end
 
-  @doc """
-  Builds an `Ecto.Query` to fetch the token holders from the given token contract address hash.
-
-  The Token Holders are the addresses that own a positive amount of the Token. So this query is
-  considering the following conditions:
-
-  * The token balance from the last block.
-  * Balances greater than 0.
-  * Excluding the burn address (0x0000000000000000000000000000000000000000).
-
-  """
-  def token_holders_from_token_hash(token_contract_address_hash) do
-    query = token_holders_query(token_contract_address_hash)
-
-    from(tb in subquery(query), where: tb.value > 0)
-  end
-
-  def token_holders_ordered_by_value(token_contract_address_hash, options) do
-    paging_options = Keyword.get(options, :paging_options, @default_paging_options)
-
-    token_contract_address_hash
-    |> token_holders_from_token_hash()
-    |> order_by([tb], desc: tb.value, desc: tb.address_hash)
-    |> preload(:address)
-    |> page_token_balances(paging_options)
-    |> limit(^paging_options.page_size)
-  end
-
-  defp token_holders_query(contract_address_hash) do
-    from(
-      tb in TokenBalance,
-      distinct: :address_hash,
-      where: tb.token_contract_address_hash == ^contract_address_hash and tb.address_hash != ^@burn_address_hash,
-      order_by: [desc: :block_number]
-    )
-  end
-
   @doc """
   Builds an `Ecto.Query` to group all tokens with their number of holders.
   """
@@ -144,16 +105,6 @@ defmodule Explorer.Chain.Address.TokenBalance do
     )
   end
 
-  defp page_token_balances(query, %PagingOptions{key: nil}), do: query
-
-  defp page_token_balances(query, %PagingOptions{key: {value, address_hash}}) do
-    where(
-      query,
-      [tb],
-      tb.value < ^value or (tb.value == ^value and tb.address_hash < ^address_hash)
-    )
-  end
-
   @doc """
   Builds an `Ecto.Query` to fetch the unfetched token balances.
 

apps/explorer/lib/explorer/chain/import.ex

@@ -19,6 +19,7 @@ defmodule Explorer.Chain.Import do
     Import.Logs,
     Import.Tokens,
     Import.TokenTransfers,
+    Import.Address.CurrentTokenBalances,
     Import.Address.TokenBalances
   ]
 

apps/explorer/lib/explorer/chain/import/address/current_token_balances.ex

@@ -0,0 +1,124 @@
+defmodule Explorer.Chain.Import.Address.CurrentTokenBalances do
+  @moduledoc """
+  Bulk imports `t:Explorer.Chain.Address.CurrentTokenBalance.t/0`.
+  """
+
+  require Ecto.Query
+
+  import Ecto.Query, only: [from: 2]
+
+  alias Ecto.{Changeset, Multi}
+  alias Explorer.Chain.Address.CurrentTokenBalance
+  alias Explorer.Chain.Import
+
+  @behaviour Import.Runner
+
+  # milliseconds
+  @timeout 60_000
+
+  @type imported :: [CurrentTokenBalance.t()]
+
+  @impl Import.Runner
+  def ecto_schema_module, do: CurrentTokenBalance
+
+  @impl Import.Runner
+  def option_key, do: :address_current_token_balances
+
+  @impl Import.Runner
+  def imported_table_row do
+    %{
+      value_type: "[#{ecto_schema_module()}.t()]",
+      value_description: "List of `t:#{ecto_schema_module()}.t/0`s"
+    }
+  end
+
+  @impl Import.Runner
+  def run(multi, changes_list, %{timestamps: timestamps} = options) do
+    insert_options =
+      options
+      |> Map.get(option_key(), %{})
+      |> Map.take(~w(on_conflict timeout)a)
+      |> Map.put_new(:timeout, @timeout)
+      |> Map.put(:timestamps, timestamps)
+
+    Multi.run(multi, :address_current_token_balances, fn _ ->
+      insert(changes_list, insert_options)
+    end)
+  end
+
+  @impl Import.Runner
+  def timeout, do: @timeout
+
+  @spec insert([map()], %{
+          optional(:on_conflict) => Import.Runner.on_conflict(),
+          required(:timeout) => timeout(),
+          required(:timestamps) => Import.timestamps()
+        }) ::
+          {:ok, [CurrentTokenBalance.t()]}
+          | {:error, [Changeset.t()]}
+  def insert(changes_list, %{timeout: timeout, timestamps: timestamps} = options) when is_list(changes_list) do
+    on_conflict = Map.get_lazy(options, :on_conflict, &default_on_conflict/0)
+
+    {:ok, _} =
+      Import.insert_changes_list(
+        unique_token_balances(changes_list),
+        conflict_target: ~w(address_hash token_contract_address_hash)a,
+        on_conflict: on_conflict,
+        for: CurrentTokenBalance,
+        returning: true,
+        timeout: timeout,
+        timestamps: timestamps
+      )
+  end
+
+  # Remove duplicated token balances based on `{address_hash, token_hash}` considering the last block
+  # to avoid `cardinality_violation` error in Postgres. This error happens when there are duplicated
+  # rows being inserted.
+  defp unique_token_balances(changes_list) do
+    changes_list
+    |> Enum.sort(&(&1.block_number > &2.block_number))
+    |> Enum.uniq_by(fn %{address_hash: address_hash, token_contract_address_hash: token_hash} ->
+      {address_hash, token_hash}
+    end)
+  end
+
+  defp default_on_conflict do
+    from(
+      current_token_balance in CurrentTokenBalance,
+      update: [
+        set: [
+          block_number:
+            fragment(
+              "CASE WHEN EXCLUDED.block_number > ? THEN EXCLUDED.block_number ELSE ? END",
+              current_token_balance.block_number,
+              current_token_balance.block_number
+            ),
+          inserted_at:
+            fragment(
+              "CASE WHEN EXCLUDED.block_number > ? THEN EXCLUDED.inserted_at ELSE ? END",
+              current_token_balance.block_number,
+              current_token_balance.inserted_at
+            ),
+          updated_at:
+            fragment(
+              "CASE WHEN EXCLUDED.block_number > ? THEN EXCLUDED.updated_at ELSE ? END",
+              current_token_balance.block_number,
+              current_token_balance.updated_at
+            ),
+          value:
+            fragment(
+              "CASE WHEN EXCLUDED.block_number > ? THEN EXCLUDED.value ELSE ? END",
+              current_token_balance.block_number,
+              current_token_balance.value
+            ),
+          value_fetched_at:
+            fragment(
+              "CASE WHEN EXCLUDED.block_number > ? THEN EXCLUDED.value_fetched_at ELSE ? END",
+              current_token_balance.block_number,
+              current_token_balance.value_fetched_at
+            )
+        ]
+      ]
+    )
+  end
+end

apps/explorer/priv/repo/migrations/20181026180921_create_address_current_token_balances.exs

@@ -0,0 +1,32 @@
+defmodule Explorer.Repo.Migrations.CreateAddressCurrentTokenBalances do
+  use Ecto.Migration
+
+  def change do
+    create table(:address_current_token_balances) do
+      add(:address_hash, references(:addresses, column: :hash, type: :bytea), null: false)
+      add(:block_number, :bigint, null: false)
+
+      add(
+        :token_contract_address_hash,
+        references(:tokens, column: :contract_address_hash, type: :bytea),
+        null: false
+      )
+
+      add(:value, :decimal, null: true)
+      add(:value_fetched_at, :utc_datetime, default: fragment("NULL"), null: true)
+
+      timestamps(null: false, type: :utc_datetime)
+    end
+
+    create(unique_index(:address_current_token_balances, ~w(address_hash token_contract_address_hash)a))
+
+    create(
+      index(
+        :address_current_token_balances,
+        [:value],
+        name: :address_current_token_balances_value,
+        where: "value IS NOT NULL"
+      )
+    )
+  end
+end

apps/explorer/test/explorer/chain/address/current_token_balance_test.exs

@@ -0,0 +1,149 @@
+defmodule Explorer.Chain.Address.CurrentTokenBalanceTest do
+  use Explorer.DataCase
+
+  alias Explorer.{Chain, PagingOptions, Repo}
+  alias Explorer.Chain.Token
+  alias Explorer.Chain.Address.CurrentTokenBalance
+
+  describe "token_holders_ordered_by_value/2" do
+    test "returns the last value for each address" do
+      %Token{contract_address_hash: contract_address_hash} = insert(:token)
+      address_a = insert(:address)
+      address_b = insert(:address)
+
+      insert(
+        :address_current_token_balance,
+        address: address_a,
+        token_contract_address_hash: contract_address_hash,
+        value: 5000
+      )
+
+      insert(
+        :address_current_token_balance,
+        address: address_b,
+        block_number: 1001,
+        token_contract_address_hash: contract_address_hash,
+        value: 4000
+      )
+
+      token_holders_count =
+        contract_address_hash
+        |> CurrentTokenBalance.token_holders_ordered_by_value()
+        |> Repo.all()
+        |> Enum.count()
+
+      assert token_holders_count == 2
+    end
+
+    test "sort by the highest value" do
+      %Token{contract_address_hash: contract_address_hash} = insert(:token)
+      address_a = insert(:address)
+      address_b = insert(:address)
+      address_c = insert(:address)
+
+      insert(
+        :address_current_token_balance,
+        address: address_a,
+        token_contract_address_hash: contract_address_hash,
+        value: 5000
+      )
+
+      insert(
+        :address_current_token_balance,
+        address: address_b,
+        token_contract_address_hash: contract_address_hash,
+        value: 4000
+      )
+
+      insert(
+        :address_current_token_balance,
+        address: address_c,
+        token_contract_address_hash: contract_address_hash,
+        value: 15000
+      )
+
+      token_holders_values =
+        contract_address_hash
+        |> CurrentTokenBalance.token_holders_ordered_by_value()
+        |> Repo.all()
+        |> Enum.map(&Decimal.to_integer(&1.value))
+
+      assert token_holders_values == [15_000, 5_000, 4_000]
+    end
+
+    test "returns only token balances that have value greater than 0" do
+      %Token{contract_address_hash: contract_address_hash} = insert(:token)
+
+      insert(
+        :address_current_token_balance,
+        token_contract_address_hash: contract_address_hash,
+        value: 0
+      )
+
+      result =
+        contract_address_hash
+        |> CurrentTokenBalance.token_holders_ordered_by_value()
+        |> Repo.all()
+
+      assert result == []
+    end
+
+    test "ignores the burn address" do
+      {:ok, burn_address_hash} = Chain.string_to_address_hash("0x0000000000000000000000000000000000000000")
+
+      burn_address = insert(:address, hash: burn_address_hash)
+
+      %Token{contract_address_hash: contract_address_hash} = insert(:token)
+
+      insert(
+        :address_current_token_balance,
+        address: burn_address,
+        token_contract_address_hash: contract_address_hash,
+        value: 1000
+      )
+
+      result =
+        contract_address_hash
+        |> CurrentTokenBalance.token_holders_ordered_by_value()
+        |> Repo.all()
+
+      assert result == []
+    end
+
+    test "paginates the result by value and different address" do
+      address_a = build(:address, hash: "0xcb2cf1fd3199584ac5faa16c6aca49472dc6495a")
+      address_b = build(:address, hash: "0x5f26097334b6a32b7951df61fd0c5803ec5d8354")
+
+      %Token{contract_address_hash: contract_address_hash} = insert(:token)
+
+      first_page =
+        insert(
+          :address_current_token_balance,
+          address: address_a,
+          token_contract_address_hash: contract_address_hash,
+          value: 4000
+        )
+
+      second_page =
+        insert(
+          :address_current_token_balance,
+          address: address_b,
+          token_contract_address_hash: contract_address_hash,
+          value: 4000
+        )
+
+      paging_options = %PagingOptions{
+        key: {first_page.value, first_page.address_hash},
+        page_size: 2
+      }
+
+      result_paginated =
+        contract_address_hash
+        |> CurrentTokenBalance.token_holders_ordered_by_value(paging_options: paging_options)
+        |> Repo.all()
+        |> Enum.map(& &1.address_hash)
+
+      assert result_paginated == [second_page.address_hash]
+    end
+  end
+end

apps/explorer/test/explorer/chain/import/address/address/current_token_balances_test.exs

@@ -0,0 +1,95 @@
+defmodule Explorer.Chain.Import.Address.CurrentTokenBalancesTest do
+  use Explorer.DataCase
+
+  alias Explorer.Chain.Import.Address.CurrentTokenBalances
+
+  alias Explorer.Chain.{Address.CurrentTokenBalance}
+
+  describe "insert/2" do
+    setup do
+      address = insert(:address, hash: "0xe8ddc5c7a2d2f0d7a9798459c0104fdf5e987aca")
+      token = insert(:token)
+
+      insert_options = %{
+        timeout: :infinity,
+        timestamps: %{inserted_at: DateTime.utc_now(), updated_at: DateTime.utc_now()}
+      }
+
+      %{address: address, token: token, insert_options: insert_options}
+    end
+
+    test "inserts in the current token balances", %{address: address, token: token, insert_options: insert_options} do
+      changes = [
+        %{
+          address_hash: address.hash,
+          block_number: 1,
+          token_contract_address_hash: token.contract_address_hash,
+          value: Decimal.new(100)
+        }
+      ]
+
+      CurrentTokenBalances.insert(changes, insert_options)
+
+      current_token_balances =
+        CurrentTokenBalance
+        |> Explorer.Repo.all()
+        |> Enum.count()
+
+      assert current_token_balances == 1
+    end
+
+    test "considers the last block upserting", %{address: address, token: token, insert_options: insert_options} do
+      insert(
+        :address_current_token_balance,
+        address: address,
+        block_number: 1,
+        token_contract_address_hash: token.contract_address_hash,
+        value: 100
+      )
+
+      changes = [
+        %{
+          address_hash: address.hash,
+          block_number: 2,
+          token_contract_address_hash: token.contract_address_hash,
+          value: Decimal.new(200)
+        }
+      ]
+
+      CurrentTokenBalances.insert(changes, insert_options)
+
+      current_token_balance = Explorer.Repo.get_by(CurrentTokenBalance, address_hash: address.hash)
+
+      assert current_token_balance.block_number == 2
+      assert current_token_balance.value == Decimal.new(200)
+    end
+
+    test "considers the last block when there are duplicated params", %{
+      address: address,
+      token: token,
+      insert_options: insert_options
+    } do
+      changes = [
+        %{
+          address_hash: address.hash,
+          block_number: 4,
+          token_contract_address_hash: token.contract_address_hash,
+          value: Decimal.new(200)
+        },
+        %{
+          address_hash: address.hash,
+          block_number: 1,
+          token_contract_address_hash: token.contract_address_hash,
+          value: Decimal.new(100)
+        }
+      ]
+
+      CurrentTokenBalances.insert(changes, insert_options)
+
+      current_token_balance = Explorer.Repo.get_by(CurrentTokenBalance, address_hash: address.hash)
+
+      assert current_token_balance.block_number == 4
+      assert current_token_balance.value == Decimal.new(200)
+    end
+  end
+end

apps/explorer/test/explorer/chain/import_test.exs

@@ -6,6 +6,7 @@ defmodule Explorer.Chain.ImportTest do
   alias Explorer.Chain.{
     Address,
     Address.TokenBalance,
+    Address.CurrentTokenBalance,
     Block,
     Data,
     Log,
@@ -395,6 +396,55 @@ defmodule Explorer.Chain.ImportTest do
       assert 3 == count
     end
 
+    test "inserts a current_token_balance" do
+      params = %{
+        addresses: %{
+          params: [
+            %{hash: "0xe8ddc5c7a2d2f0d7a9798459c0104fdf5e987aca"},
+            %{hash: "0x515c09c5bba1ed566b02a5b0599ec5d5d0aee73d"},
+            %{hash: "0x8bf38d4764929064f2d4d3a56520a76ab3df415b"}
+          ],
+          timeout: 5
+        },
+        tokens: %{
+          on_conflict: :nothing,
+          params: [
+            %{
+              contract_address_hash: "0x8bf38d4764929064f2d4d3a56520a76ab3df415b",
+              type: "ERC-20"
+            }
+          ],
+          timeout: 5
+        },
+        address_current_token_balances: %{
+          params: [
+            %{
+              address_hash: "0xe8ddc5c7a2d2f0d7a9798459c0104fdf5e987aca",
+              token_contract_address_hash: "0x8bf38d4764929064f2d4d3a56520a76ab3df415b",
+              block_number: "37",
+              value: 200
+            },
+            %{
+              address_hash: "0x515c09c5bba1ed566b02a5b0599ec5d5d0aee73d",
+              token_contract_address_hash: "0x8bf38d4764929064f2d4d3a56520a76ab3df415b",
+              block_number: "37",
+              value: 100
+            }
+          ],
+          timeout: 5
+        }
+      }
+
+      Import.all(params)
+
+      count =
+        CurrentTokenBalance
+        |> Explorer.Repo.all()
+        |> Enum.count()
+
+      assert count == 2
+    end
+
     test "with empty map" do
       assert {:ok, %{}} == Import.all(%{})
     end

apps/explorer/test/explorer/chain_test.exs

@@ -1182,7 +1182,10 @@ defmodule Explorer.ChainTest do
         |> Enum.map(&insert(:address, fetched_coin_balance: &1))
         |> Enum.map(& &1.hash)
 
-      assert address_hashes == Enum.map(Chain.list_top_addresses(), & &1.hash)
+      assert address_hashes ==
+               Chain.list_top_addresses()
+               |> Enum.map(fn {address, _transaction_count} -> address end)
+               |> Enum.map(& &1.hash)
     end
 
     test "with top addresses in order with matching value" do
@@ -1201,7 +1204,10 @@ defmodule Explorer.ChainTest do
         |> insert(fetched_coin_balance: 4, hash: Enum.fetch!(test_hashes, 4))
         |> Map.fetch!(:hash)
 
-      assert [first_result_hash | tail] == Enum.map(Chain.list_top_addresses(), & &1.hash)
+      assert [first_result_hash | tail] ==
+               Chain.list_top_addresses()
+               |> Enum.map(fn {address, _transaction_count} -> address end)
+               |> Enum.map(& &1.hash)
     end
   end
 
@@ -2956,173 +2962,32 @@ defmodule Explorer.ChainTest do
   end
 
   describe "fetch_token_holders_from_token_hash/2" do
-    test "returns the last value for each address" do
+    test "returns the token holders" do
       %Token{contract_address_hash: contract_address_hash} = insert(:token)
-      address = insert(:address)
+      address_a = insert(:address)
+      address_b = insert(:address)
 
       insert(
-        :token_balance,
-        address: address,
-        block_number: 1000,
+        :address_current_token_balance,
+        address: address_a,
         token_contract_address_hash: contract_address_hash,
         value: 5000
       )
 
       insert(
-        :token_balance,
-        block_number: 1001,
-        token_contract_address_hash: contract_address_hash,
-        value: 4000
-      )
-
-      insert(
-        :token_balance,
-        address: address,
-        block_number: 1002,
-        token_contract_address_hash: contract_address_hash,
-        value: 2000
-      )
-
-      values =
-        contract_address_hash
-        |> Chain.fetch_token_holders_from_token_hash([])
-        |> Enum.map(&Decimal.to_integer(&1.value))
-
-      assert values == [4000, 2000]
-    end
-
-    test "sort by the highest value" do
-      %Token{contract_address_hash: contract_address_hash} = insert(:token)
-
-      insert(
-        :token_balance,
-        block_number: 1000,
-        token_contract_address_hash: contract_address_hash,
-        value: 2000
-      )
-
-      insert(
-        :token_balance,
+        :address_current_token_balance,
+        address: address_b,
         block_number: 1001,
         token_contract_address_hash: contract_address_hash,
-        value: 1000
-      )
-
-      insert(
-        :token_balance,
-        block_number: 1002,
-        token_contract_address_hash: contract_address_hash,
         value: 4000
       )
 
-      insert(
-        :token_balance,
-        block_number: 1002,
-        token_contract_address_hash: contract_address_hash,
-        value: 3000
-      )
-
-      values =
+      token_holders_count =
         contract_address_hash
         |> Chain.fetch_token_holders_from_token_hash([])
-        |> Enum.map(&Decimal.to_integer(&1.value))
-
-      assert values == [4000, 3000, 2000, 1000]
-    end
-
-    test "returns only token balances that have value" do
-      %Token{contract_address_hash: contract_address_hash} = insert(:token)
-
-      insert(
-        :token_balance,
-        token_contract_address_hash: contract_address_hash,
-        value: 0
-      )
-
-      assert Chain.fetch_token_holders_from_token_hash(contract_address_hash, []) == []
-    end
-
-    test "returns an empty list when there are no address with value greater than 0" do
-      %Token{contract_address_hash: contract_address_hash} = insert(:token)
-
-      insert(:token_balance, value: 1000)
-
-      assert Chain.fetch_token_holders_from_token_hash(contract_address_hash, []) == []
-    end
-
-    test "ignores the burn address" do
-      {:ok, burn_address_hash} = Chain.string_to_address_hash("0x0000000000000000000000000000000000000000")
-
-      burn_address = insert(:address, hash: burn_address_hash)
-
-      %Token{contract_address_hash: contract_address_hash} = insert(:token)
-
-      insert(
-        :token_balance,
-        address: burn_address,
-        token_contract_address_hash: contract_address_hash,
-        value: 1000
-      )
-
-      assert Chain.fetch_token_holders_from_token_hash(contract_address_hash, []) == []
-    end
-
-    test "paginates the result by value and different address" do
-      address_a = build(:address, hash: "0xcb2cf1fd3199584ac5faa16c6aca49472dc6495a")
-      address_b = build(:address, hash: "0x5f26097334b6a32b7951df61fd0c5803ec5d8354")
-
-      %Token{contract_address_hash: contract_address_hash} = insert(:token)
-
-      first_page =
-        insert(
-          :token_balance,
-          address: address_a,
-          token_contract_address_hash: contract_address_hash,
-          value: 4000
-        )
-
-      second_page =
-        insert(
-          :token_balance,
-          address: address_b,
-          token_contract_address_hash: contract_address_hash,
-          value: 4000
-        )
-
-      paging_options = %PagingOptions{
-        key: {first_page.value, first_page.address_hash},
-        page_size: 2
-      }
-
-      holders_paginated =
-        contract_address_hash
-        |> Chain.fetch_token_holders_from_token_hash(paging_options: paging_options)
-        |> Enum.map(& &1.address_hash)
-
-      assert holders_paginated == [second_page.address_hash]
-    end
-
-    test "considers the last block only if it has value" do
-      address = insert(:address, hash: "0x5f26097334b6a32b7951df61fd0c5803ec5d8354")
-      %Token{contract_address_hash: contract_address_hash} = insert(:token)
-
-      insert(
-        :token_balance,
-        address: address,
-        block_number: 1000,
-        token_contract_address_hash: contract_address_hash,
-        value: 5000
-      )
-
-      insert(
-        :token_balance,
-        address: address,
-        block_number: 1002,
-        token_contract_address_hash: contract_address_hash,
-        value: 0
-      )
+        |> Enum.count()
 
-      assert Chain.fetch_token_holders_from_token_hash(contract_address_hash, []) == []
+      assert token_holders_count == 2
     end
   end
 

apps/explorer/test/support/factory.ex

@@ -13,6 +13,7 @@ defmodule Explorer.Factory do
 
   alias Explorer.Chain.{
     Address,
+    Address.CurrentTokenBalance,
     Address.TokenBalance,
     Address.CoinBalance,
     Block,
@@ -480,6 +481,16 @@ defmodule Explorer.Factory do
     }
   end
 
+  def address_current_token_balance_factory() do
+    %CurrentTokenBalance{
+      address: build(:address),
+      token_contract_address_hash: insert(:token).contract_address_hash,
+      block_number: block_number(),
+      value: Enum.random(1..100_000),
+      value_fetched_at: DateTime.utc_now()
+    }
+  end
+
   defmacrop left + right do
     quote do
       fragment("? + ?", unquote(left), unquote(right))

apps/indexer/config/config.exs

@@ -5,9 +5,10 @@ use Mix.Config
 import Bitwise
 
 config :indexer,
+  block_transformer: Indexer.Block.Transform.Base,
+  ecto_repos: [Explorer.Repo],
   # bytes
-  memory_limit: 1 <<< 30,
-  ecto_repos: [Explorer.Repo]
+  memory_limit: 1 <<< 30
 
 config :logger, :indexer,
   # keep synced with `config/config.exs`

apps/indexer/lib/indexer/block/fetcher.ex

@@ -9,6 +9,7 @@ defmodule Indexer.Block.Fetcher do
   alias Indexer.{AddressExtraction, CoinBalance, MintTransfer, Token, TokenTransfers}
   alias Indexer.Address.{CoinBalances, TokenBalances}
   alias Indexer.Block.Fetcher.Receipts
+  alias Indexer.Block.Transform
 
   @type address_hash_to_fetched_balance_block_number :: %{String.t() => Block.block_number()}
   @type transaction_hash_to_block_number :: %{String.t() => Block.block_number()}
@@ -96,6 +97,7 @@ defmodule Indexer.Block.Fetcher do
            transactions: transactions_without_receipts,
            block_second_degree_relations: block_second_degree_relations
          } = result,
+         blocks = Transform.transform_blocks(blocks),
          {:receipts, {:ok, receipt_params}} <- {:receipts, Receipts.fetch(state, transactions_without_receipts)},
          %{logs: logs, receipts: receipts} = receipt_params,
          transactions_with_receipts = Receipts.put(transactions_without_receipts, receipts),

apps/indexer/lib/indexer/block/realtime/fetcher.ex

@@ -107,6 +107,7 @@ defmodule Indexer.Block.Realtime.Fetcher do
            |> put_in([:addresses, :params], balances_addresses_params)
            |> put_in([:blocks, :params, Access.all(), :consensus], true)
            |> put_in([Access.key(:address_coin_balances, %{}), :params], balances_params)
+           |> put_in([Access.key(:address_current_token_balances, %{}), :params], address_token_balances)
            |> put_in([Access.key(:address_token_balances), :params], address_token_balances)
            |> put_in([Access.key(:internal_transactions, %{}), :params], internal_transactions_params),
          {:ok, imported} = ok <- Chain.import(chain_import_options) do

apps/indexer/lib/indexer/block/transform.ex

@@ -0,0 +1,31 @@
+defmodule Indexer.Block.Transform do
+  @moduledoc """
+  Protocol for transforming blocks.
+  """
+
+  @type block :: map()
+
+  @doc """
+  Transforms a block.
+  """
+  @callback transform(block :: block()) :: block()
+
+  @doc """
+  Runs a list of blocks through the configured block transformer.
+  """
+  def transform_blocks(blocks) when is_list(blocks) do
+    transformer = Application.get_env(:indexer, :block_transformer)
+
+    unless transformer do
+      raise ArgumentError,
+            """
+            No block transformer defined. Set a blocker transformer."
+
+               config :indexer,
+                 block_transformer: Indexer.Block.Transform.Base
+            """
+    end
+
+    Enum.map(blocks, &transformer.transform/1)
+  end
+end

apps/indexer/lib/indexer/block/transform/base.ex

@@ -0,0 +1,14 @@
+defmodule Indexer.Block.Transform.Base do
+  @moduledoc """
+  Default block transformer to be used.
+  """
+
+  alias Indexer.Block.Transform
+
+  @behaviour Transform
+
+  @impl Transform
+  def transform(block) when is_map(block) do
+    block
+  end
+end

apps/indexer/lib/indexer/block/transform/clique.ex

@@ -0,0 +1,16 @@
+defmodule Indexer.Block.Transform.Clique do
+  @moduledoc """
+  Handles block transforms for Clique chain.
+  """
+
+  alias Indexer.Block.{Transform, Util}
+
+  @behaviour Transform
+
+  @impl Transform
+  def transform(block) when is_map(block) do
+    miner_address = Util.signer(block)
+
+    %{block | miner_hash: miner_address}
+  end
+end

apps/indexer/lib/indexer/block/util.ex

@@ -0,0 +1,75 @@
+defmodule Indexer.Block.Util do
+  @moduledoc """
+  Helper functions for parsing block information.
+  """
+
+  @doc """
+  Calculates the signer's address by recovering the ECDSA public key.
+
+  https://en.wikipedia.org/wiki/Elliptic_Curve_Digital_Signature_Algorithm
+  """
+  def signer(block) when is_map(block) do
+    # Last 65 bytes is the signature. Multiply by two since we haven't transformed to raw bytes
+    {extra_data, signature} = String.split_at(trim_prefix(block.extra_data), -130)
+
+    block = %{block | extra_data: extra_data}
+
+    signature_hash = signature_hash(block)
+
+    recover_pub_key(signature_hash, decode(signature))
+  end
+
+  # Signature hash calculated from the block header.
+  # Needed for PoA-based chains
+  defp signature_hash(block) do
+    header_data = [
+      decode(block.parent_hash),
+      decode(block.sha3_uncles),
+      decode(block.miner_hash),
+      decode(block.state_root),
+      decode(block.transactions_root),
+      decode(block.receipts_root),
+      decode(block.logs_bloom),
+      block.difficulty,
+      block.number,
+      block.gas_limit,
+      block.gas_used,
+      DateTime.to_unix(block.timestamp),
+      decode(block.extra_data),
+      decode(block.mix_hash),
+      decode(block.nonce)
+    ]
+
+    :keccakf1600.hash(:sha3_256, ExRLP.encode(header_data))
+  end
+
+  defp trim_prefix("0x" <> rest), do: rest
+
+  defp decode("0x" <> rest) do
+    decode(rest)
+  end
+
+  defp decode(data) do
+    Base.decode16!(data, case: :mixed)
+  end
+
+  # Recovers the key from the signature hash and signature
+  defp recover_pub_key(signature_hash, signature) do
+    <<
+      r::bytes-size(32),
+      s::bytes-size(32),
+      v::integer-size(8)
+    >> = signature
+
+    # First byte represents compression which can be ignored
+    # Private key is the last 64 bytes
+    {:ok, <<_compression::bytes-size(1), private_key::binary>>} =
+      :libsecp256k1.ecdsa_recover_compact(signature_hash, r <> s, :uncompressed, v)
+
+    # Public key comes from the last 20 bytes
+    <<_::bytes-size(12), public_key::binary>> = :keccakf1600.hash(:sha3_256, private_key)
+
+    miner_address = Base.encode16(public_key, case: :lower)
+    "0x" <> miner_address
+  end
+end

apps/indexer/lib/indexer/token_balance/fetcher.ex

@@ -80,7 +80,13 @@ defmodule Indexer.TokenBalance.Fetcher do
   end
 
   def import_token_balances(token_balances_params) do
-    case Chain.import(%{address_token_balances: %{params: token_balances_params}, timeout: :infinity}) do
+    import_params = %{
+      address_token_balances: %{params: token_balances_params},
+      address_current_token_balances: %{params: token_balances_params},
+      timeout: :infinity
+    }
+
+    case Chain.import(import_params) do
       {:ok, _} ->
         :ok
 

apps/indexer/lib/indexer/token_balances.ex

@@ -29,7 +29,7 @@ defmodule Indexer.TokenBalances do
       token_balances
       |> Task.async_stream(&fetch_token_balance/1, on_timeout: :kill_task)
       |> Stream.map(&format_task_results/1)
-      |> Enum.filter(&ignore_request_with_timeouts/1)
+      |> Enum.filter(&ignore_request_with_errors/1)
 
     token_balances
     |> MapSet.new()
@@ -70,11 +70,12 @@ defmodule Indexer.TokenBalances do
     |> TokenBalance.Fetcher.async_fetch()
   end
 
-  def format_task_results({:exit, :timeout}), do: {:error, :timeout}
-  def format_task_results({:ok, token_balance}), do: token_balance
+  defp format_task_results({:exit, :timeout}), do: {:error, :timeout}
+  defp format_task_results({:ok, token_balance}), do: token_balance
 
-  def ignore_request_with_timeouts({:error, :timeout}), do: false
-  def ignore_request_with_timeouts(_token_balance), do: true
+  defp ignore_request_with_errors({:error, :timeout}), do: false
+  defp ignore_request_with_errors(%{value: nil, value_fetched_at: nil, error: _error}), do: false
+  defp ignore_request_with_errors(_token_balance), do: true
 
   def log_fetching_errors(from, token_balances_params) do
     error_messages =

apps/indexer/mix.exs

@@ -46,10 +46,14 @@ defmodule Indexer.MixProject do
     [
       # JSONRPC access to Parity for `Explorer.Indexer`
       {:ethereum_jsonrpc, in_umbrella: true},
+      # RLP encoding
+      {:ex_rlp, "~> 0.3"},
       # Code coverage
       {:excoveralls, "~> 0.10.0", only: [:test], github: "KronicDeth/excoveralls", branch: "circle-workflows"},
       # Importing to database
       {:explorer, in_umbrella: true},
+      # libsecp2561k1 crypto functions
+      {:libsecp256k1, "~> 0.1.10"},
       # Log errors and application output to separate files
       {:logger_file_backend, "~> 0.0.10"},
       # Mocking `EthereumJSONRPC.Transport`, so we avoid hitting real chains for local testing

apps/indexer/test/indexer/block/catchup/bound_interval_supervisor_test.exs

@@ -448,20 +448,26 @@ defmodule Indexer.Block.Catchup.BoundIntervalSupervisorTest do
              jsonrpc: "2.0",
              result: %{
                "difficulty" => "0x0",
+               "extraData" => "0x0",
                "gasLimit" => "0x0",
                "gasUsed" => "0x0",
                "hash" =>
                  Explorer.Factory.block_hash()
                  |> to_string(),
+               "logsBloom" => "0x0",
                "miner" => "0xb2930b35844a230f00e51431acae96fe543a0347",
                "number" => "0x0",
                "parentHash" =>
                  Explorer.Factory.block_hash()
                  |> to_string(),
+               "receiptsRoot" => "0x0",
+               "sha3Uncles" => "0x0",
                "size" => "0x0",
+               "stateRoot" => "0x0",
                "timestamp" => "0x0",
                "totalDifficulty" => "0x0",
                "transactions" => [],
+               "transactionsRoot" => "0x0",
                "uncles" => []
              }
            }

apps/indexer/test/indexer/block/transform/base_test.exs

@@ -0,0 +1,42 @@
+defmodule Indexer.Block.Transform.BaseTest do
+  use ExUnit.Case
+
+  alias Indexer.Block.Transform.Base
+
+  @block %{
+    difficulty: 1,
+    extra_data:
+      "0xd68301080d846765746886676f312e3130856c696e7578000000000000000000773ab2ca8f47904a14739ad80a75b71d9d29b9fff8b7ecdcb73efffa6f74122f17d304b5dc8e6e5f256c9474dd115c8d4dae31b7a3d409e5c3270f8fde41cd8c00",
+    gas_limit: 7_753_377,
+    gas_used: 1_810_195,
+    hash: "0x7004c895e812c55b0c2be8a46d72ca300a683dc27d1d7917ee7742d4d0359c1f",
+    logs_bloom:
+      "0x00000000000000020000000000002000000400000000000000000000000000000000000000000000040000080004000020000010000000000000000000000000000000000000000008000008000000000000000000200000000000000000000000000000020000000000000000000800000000000000804000000010080000000800000000000000000000000000000000000000000000800000000000080000000008000400000000404000000000000000000000000200000000000000000000000002000000000000001002000000000000002000000008000000000020000000000000000000000000000000000000000000000000400000800000000000",
+    miner: "0x0000000000000000000000000000000000000000",
+    mix_hash: "0x0000000000000000000000000000000000000000000000000000000000000000",
+    nonce: "0x0000000000000000",
+    number: 2_848_394,
+    parent_hash: "0x20350fc367e19d3865be1ea7da72ab81f8f9941c43ac6bb24a34a0a7caa2f3df",
+    receipts_root: "0x6ade4ac1079ea50cfadcce2b75ffbe4f9b14bf69b4607bbf1739463076ca6246",
+    sha3_uncles: "0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347",
+    size: 6437,
+    state_root: "0x23f63347851bcd109059d007d71e19c4f5e73b7f0862bebcd04458333a004d92",
+    timestamp: DateTime.from_unix!(1_534_796_040),
+    total_difficulty: 5_353_647,
+    transactions: [
+      "0x7e3bb851fc74a436826d2af6b96e4db9484431811ef0d9c9e78370488d33d4e5",
+      "0x3976fd1e3d2a715c3cfcfde9bd3210798c26c017b8edb841d319227ecb3322fb",
+      "0xd8db124005bb8b6fda7b71fd56ac782552a66af58fe843ba3c4930423b87d1d2",
+      "0x10c1a1ca4d9f4b2bd5b89f7bbcbbc2d69e166fe23662b8db4f6beae0f50ac9fd",
+      "0xaa58a6545677c796a56b8bc874174c8cfd31a6c6e6ca3a87e086d4f66d52858a"
+    ],
+    transactions_root: "0xde8d25c0b9b54310128a21601331094b43f910f9f96102869c2e2dca94884bf4",
+    uncles: []
+  }
+
+  describe "transform/1" do
+    test "passes the block through unchanged" do
+      assert Base.transform(@block) == @block
+    end
+  end
+end

apps/indexer/test/indexer/block/transform/clique_test.exs

@@ -0,0 +1,43 @@
+defmodule Indexer.Block.Transform.CliqueTest do
+  use ExUnit.Case
+
+  alias Indexer.Block.Transform.Clique
+
+  @block %{
+    difficulty: 1,
+    extra_data:
+      "0xd68301080d846765746886676f312e3130856c696e7578000000000000000000773ab2ca8f47904a14739ad80a75b71d9d29b9fff8b7ecdcb73efffa6f74122f17d304b5dc8e6e5f256c9474dd115c8d4dae31b7a3d409e5c3270f8fde41cd8c00",
+    gas_limit: 7_753_377,
+    gas_used: 1_810_195,
+    hash: "0x7004c895e812c55b0c2be8a46d72ca300a683dc27d1d7917ee7742d4d0359c1f",
+    logs_bloom:
+      "0x00000000000000020000000000002000000400000000000000000000000000000000000000000000040000080004000020000010000000000000000000000000000000000000000008000008000000000000000000200000000000000000000000000000020000000000000000000800000000000000804000000010080000000800000000000000000000000000000000000000000000800000000000080000000008000400000000404000000000000000000000000200000000000000000000000002000000000000001002000000000000002000000008000000000020000000000000000000000000000000000000000000000000400000800000000000",
+    miner_hash: "0x0000000000000000000000000000000000000000",
+    mix_hash: "0x0000000000000000000000000000000000000000000000000000000000000000",
+    nonce: "0x0000000000000000",
+    number: 2_848_394,
+    parent_hash: "0x20350fc367e19d3865be1ea7da72ab81f8f9941c43ac6bb24a34a0a7caa2f3df",
+    receipts_root: "0x6ade4ac1079ea50cfadcce2b75ffbe4f9b14bf69b4607bbf1739463076ca6246",
+    sha3_uncles: "0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347",
+    size: 6437,
+    state_root: "0x23f63347851bcd109059d007d71e19c4f5e73b7f0862bebcd04458333a004d92",
+    timestamp: DateTime.from_unix!(1_534_796_040),
+    total_difficulty: 5_353_647,
+    transactions: [
+      "0x7e3bb851fc74a436826d2af6b96e4db9484431811ef0d9c9e78370488d33d4e5",
+      "0x3976fd1e3d2a715c3cfcfde9bd3210798c26c017b8edb841d319227ecb3322fb",
+      "0xd8db124005bb8b6fda7b71fd56ac782552a66af58fe843ba3c4930423b87d1d2",
+      "0x10c1a1ca4d9f4b2bd5b89f7bbcbbc2d69e166fe23662b8db4f6beae0f50ac9fd",
+      "0xaa58a6545677c796a56b8bc874174c8cfd31a6c6e6ca3a87e086d4f66d52858a"
+    ],
+    transactions_root: "0xde8d25c0b9b54310128a21601331094b43f910f9f96102869c2e2dca94884bf4",
+    uncles: []
+  }
+
+  describe "transform/1" do
+    test "updates the miner hash with signer address" do
+      expected = %{@block | miner_hash: "0xfc18cbc391de84dbd87db83b20935d3e89f5dd91"}
+      assert Clique.transform(@block) == expected
+    end
+  end
+end

apps/indexer/test/indexer/block/transform_test.exs

@@ -0,0 +1,56 @@
+defmodule Indexer.Block.TransformTest do
+  use ExUnit.Case
+
+  alias Indexer.Block.Transform
+
+  @block %{
+    difficulty: 1,
+    extra_data:
+      "0xd68301080d846765746886676f312e3130856c696e7578000000000000000000773ab2ca8f47904a14739ad80a75b71d9d29b9fff8b7ecdcb73efffa6f74122f17d304b5dc8e6e5f256c9474dd115c8d4dae31b7a3d409e5c3270f8fde41cd8c00",
+    gas_limit: 7_753_377,
+    gas_used: 1_810_195,
+    hash: "0x7004c895e812c55b0c2be8a46d72ca300a683dc27d1d7917ee7742d4d0359c1f",
+    logs_bloom:
+      "0x00000000000000020000000000002000000400000000000000000000000000000000000000000000040000080004000020000010000000000000000000000000000000000000000008000008000000000000000000200000000000000000000000000000020000000000000000000800000000000000804000000010080000000800000000000000000000000000000000000000000000800000000000080000000008000400000000404000000000000000000000000200000000000000000000000002000000000000001002000000000000002000000008000000000020000000000000000000000000000000000000000000000000400000800000000000",
+    miner_hash: "0x0000000000000000000000000000000000000000",
+    mix_hash: "0x0000000000000000000000000000000000000000000000000000000000000000",
+    nonce: "0x0000000000000000",
+    number: 2_848_394,
+    parent_hash: "0x20350fc367e19d3865be1ea7da72ab81f8f9941c43ac6bb24a34a0a7caa2f3df",
+    receipts_root: "0x6ade4ac1079ea50cfadcce2b75ffbe4f9b14bf69b4607bbf1739463076ca6246",
+    sha3_uncles: "0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347",
+    size: 6437,
+    state_root: "0x23f63347851bcd109059d007d71e19c4f5e73b7f0862bebcd04458333a004d92",
+    timestamp: DateTime.from_unix!(1_534_796_040),
+    total_difficulty: 5_353_647,
+    transactions: [
+      "0x7e3bb851fc74a436826d2af6b96e4db9484431811ef0d9c9e78370488d33d4e5",
+      "0x3976fd1e3d2a715c3cfcfde9bd3210798c26c017b8edb841d319227ecb3322fb",
+      "0xd8db124005bb8b6fda7b71fd56ac782552a66af58fe843ba3c4930423b87d1d2",
+      "0x10c1a1ca4d9f4b2bd5b89f7bbcbbc2d69e166fe23662b8db4f6beae0f50ac9fd",
+      "0xaa58a6545677c796a56b8bc874174c8cfd31a6c6e6ca3a87e086d4f66d52858a"
+    ],
+    transactions_root: "0xde8d25c0b9b54310128a21601331094b43f910f9f96102869c2e2dca94884bf4",
+    uncles: []
+  }
+
+  @blocks [@block, @block]
+
+  describe "transform_blocks/1" do
+    setup do
+      original = Application.get_env(:indexer, :block_transformer)
+
+      on_exit(fn -> Application.put_env(:indexer, :block_transformer, original) end)
+    end
+
+    test "transforms a list of blocks" do
+      assert Transform.transform_blocks(@blocks)
+    end
+
+    test "raises when no transformer is configured" do
+      Application.put_env(:indexer, :block_transformer, nil)
+
+      assert_raise ArgumentError, fn -> Transform.transform_blocks(@blocks) end
+    end
+  end
+end

apps/indexer/test/indexer/block/uncle/fetcher_test.exs

@@ -69,6 +69,9 @@ defmodule Indexer.Block.Uncle.FetcherTest do
                "number" => number_quantity,
                "parentHash" => "0x006edcaa1e6fde822908783bc4ef1ad3675532d542fce53537557391cfe34c3c",
                "size" => "0x243",
+               "receiptsRoot" => "0x0",
+               "sha3Uncles" => "0x0",
+               "stateRoot" => "0x0",
                "timestamp" => "0x5b437f41",
                "totalDifficulty" => "0x342337ffffffffffffffffffffffffed8d29bb",
                "transactions" => [
@@ -93,6 +96,7 @@ defmodule Indexer.Block.Uncle.FetcherTest do
                    "value" => "0x0"
                  }
                ],
+               "transactionsRoot" => "0x0",
                "uncles" => [uncle_uncle_hash_data]
              }
            }

apps/indexer/test/indexer/block/util_test.exs

@@ -0,0 +1,40 @@
+defmodule Indexer.Block.UtilTest do
+  use ExUnit.Case
+
+  alias Indexer.Block.Util
+
+  test "signer/1" do
+    data = %{
+      difficulty: 1,
+      extra_data:
+        "0xd68301080d846765746886676f312e3130856c696e7578000000000000000000773ab2ca8f47904a14739ad80a75b71d9d29b9fff8b7ecdcb73efffa6f74122f17d304b5dc8e6e5f256c9474dd115c8d4dae31b7a3d409e5c3270f8fde41cd8c00",
+      gas_limit: 7_753_377,
+      gas_used: 1_810_195,
+      hash: "0x7004c895e812c55b0c2be8a46d72ca300a683dc27d1d7917ee7742d4d0359c1f",
+      logs_bloom:
+        "0x00000000000000020000000000002000000400000000000000000000000000000000000000000000040000080004000020000010000000000000000000000000000000000000000008000008000000000000000000200000000000000000000000000000020000000000000000000800000000000000804000000010080000000800000000000000000000000000000000000000000000800000000000080000000008000400000000404000000000000000000000000200000000000000000000000002000000000000001002000000000000002000000008000000000020000000000000000000000000000000000000000000000000400000800000000000",
+      miner_hash: "0x0000000000000000000000000000000000000000",
+      mix_hash: "0x0000000000000000000000000000000000000000000000000000000000000000",
+      nonce: "0x0000000000000000",
+      number: 2_848_394,
+      parent_hash: "0x20350fc367e19d3865be1ea7da72ab81f8f9941c43ac6bb24a34a0a7caa2f3df",
+      receipts_root: "0x6ade4ac1079ea50cfadcce2b75ffbe4f9b14bf69b4607bbf1739463076ca6246",
+      sha3_uncles: "0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347",
+      size: 6437,
+      state_root: "0x23f63347851bcd109059d007d71e19c4f5e73b7f0862bebcd04458333a004d92",
+      timestamp: DateTime.from_unix!(1_534_796_040),
+      total_difficulty: 5_353_647,
+      transactions: [
+        "0x7e3bb851fc74a436826d2af6b96e4db9484431811ef0d9c9e78370488d33d4e5",
+        "0x3976fd1e3d2a715c3cfcfde9bd3210798c26c017b8edb841d319227ecb3322fb",
+        "0xd8db124005bb8b6fda7b71fd56ac782552a66af58fe843ba3c4930423b87d1d2",
+        "0x10c1a1ca4d9f4b2bd5b89f7bbcbbc2d69e166fe23662b8db4f6beae0f50ac9fd",
+        "0xaa58a6545677c796a56b8bc874174c8cfd31a6c6e6ca3a87e086d4f66d52858a"
+      ],
+      transactions_root: "0xde8d25c0b9b54310128a21601331094b43f910f9f96102869c2e2dca94884bf4",
+      uncles: []
+    }
+
+    assert Util.signer(data) == "0xfc18cbc391de84dbd87db83b20935d3e89f5dd91"
+  end
+end

apps/indexer/test/indexer/token_balances_test.exs

@@ -45,28 +45,21 @@ defmodule Indexer.TokenBalancesTest do
              } = List.first(result)
     end
 
-    test "does not ignore calls that were returned with error" do
-      address = insert(:address)
+    test "ignores calls that gave errors to try fetch they again later" do
+      address = insert(:address, hash: "0x7113ffcb9c18a97da1b9cfc43e6cb44ed9165509")
       token = insert(:token, contract_address: build(:contract_address))
-      address_hash_string = Hash.to_string(address.hash)
 
-      data = %{
-        token_contract_address_hash: token.contract_address_hash,
-        address_hash: address_hash_string,
-        block_number: 1_000
-      }
+      token_balances = [
+        %{
+          address_hash: to_string(address.hash),
+          block_number: 1_000,
+          token_contract_address_hash: to_string(token.contract_address_hash)
+        }
+      ]
 
       get_balance_from_blockchain_with_error()
 
-      {:ok, result} = TokenBalances.fetch_token_balances_from_blockchain([data])
-
-      assert %{
-               value: nil,
-               token_contract_address_hash: token_contract_address_hash,
-               address_hash: address_hash,
-               block_number: 1_000,
-               value_fetched_at: nil
-             } = List.first(result)
+      assert TokenBalances.fetch_token_balances_from_blockchain(token_balances) == {:ok, []}
     end
 
     test "ignores results that raised :timeout" do

mix.lock

@@ -32,6 +32,7 @@
   "ex_cldr_units": {:hex, :ex_cldr_units, "1.1.1", "b3c7256709bdeb3740a5f64ce2bce659eb9cf4cc1afb4cf94aba033b4a18bc5f", [:mix], [{:ex_cldr, "~> 1.0", [hex: :ex_cldr, optional: false]}, {:ex_cldr_numbers, "~> 1.0", [hex: :ex_cldr_numbers, optional: false]}]},
   "ex_doc": {:hex, :ex_doc, "0.19.1", "519bb9c19526ca51d326c060cb1778d4a9056b190086a8c6c115828eaccea6cf", [:mix], [{:earmark, "~> 1.1", [hex: :earmark, repo: "hexpm", optional: false]}, {:makeup_elixir, "~> 0.7", [hex: :makeup_elixir, repo: "hexpm", optional: false]}], "hexpm"},
   "ex_machina": {:hex, :ex_machina, "2.2.1", "df84d0b23487aaa8570c35e586d7f9f197a7787e1121344a41d8832a7ea41edf", [:mix], [{:ecto, "~> 2.1", [hex: :ecto, repo: "hexpm", optional: true]}], "hexpm"},
+  "ex_rlp": {:hex, :ex_rlp, "0.3.1", "190554f7b26f79734fc5a772241eec14a71b2e83576e43f451479feb017013e9", [:mix], [], "hexpm"},
   "exactor": {:hex, :exactor, "2.2.4", "5efb4ddeb2c48d9a1d7c9b465a6fffdd82300eb9618ece5d34c3334d5d7245b1", [:mix], []},
   "excoveralls": {:git, "https://github.com/KronicDeth/excoveralls.git", "0a859b68851eeba9b43eba59fbc8f9098299cfe1", [branch: "circle-workflows"]},
   "exjsx": {:hex, :exjsx, "4.0.0", "60548841e0212df401e38e63c0078ec57b33e7ea49b032c796ccad8cde794b5c", [:mix], [{:jsx, "~> 2.8.0", [hex: :jsx, optional: false]}]},
@@ -50,7 +51,7 @@
   "jsx": {:hex, :jsx, "2.8.3", "a05252d381885240744d955fbe3cf810504eb2567164824e19303ea59eef62cf", [:mix, :rebar3], []},
   "junit_formatter": {:hex, :junit_formatter, "2.2.0", "da6093f0740c58a824f9585ebb7cb1b960efaecf48d1fa969e95d9c47c6b19dd", [:mix], [], "hexpm"},
   "keccakf1600": {:hex, :keccakf1600_orig, "2.0.0", "0a7217ddb3ee8220d449bbf7575ec39d4e967099f220a91e3dfca4dbaef91963", [:rebar3], []},
-  "libsecp256k1": {:hex, :libsecp256k1, "0.1.4", "42b7f76d8e32f85f578ccda0abfdb1afa0c5c231d1fd8aeab9cda352731a2d83", [:rebar3], []},
+  "libsecp256k1": {:hex, :libsecp256k1, "0.1.10", "d27495e2b9851c7765129b76c53b60f5e275bd6ff68292c50536bf6b8d091a4d", [:make, :mix], [{:mix_erlang_tasks, "0.1.0", [hex: :mix_erlang_tasks, repo: "hexpm", optional: false]}], "hexpm"},
   "logger_file_backend": {:hex, :logger_file_backend, "0.0.10", "876f9f84ae110781207c54321ffbb62bebe02946fe3c13f0d7c5f5d8ad4fa910", [:mix], [], "hexpm"},
   "makeup": {:hex, :makeup, "0.5.5", "9e08dfc45280c5684d771ad58159f718a7b5788596099bdfb0284597d368a882", [:mix], [{:nimble_parsec, "~> 0.4", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm"},
   "makeup_elixir": {:hex, :makeup_elixir, "0.10.0", "0f09c2ddf352887a956d84f8f7e702111122ca32fbbc84c2f0569b8b65cbf7fa", [:mix], [{:makeup, "~> 0.5.5", [hex: :makeup, repo: "hexpm", optional: false]}], "hexpm"},
@@ -59,6 +60,7 @@
   "metrics": {:hex, :metrics, "1.0.1", "25f094dea2cda98213cecc3aeff09e940299d950904393b2a29d191c346a8486", [:rebar3], []},
   "mime": {:hex, :mime, "1.3.0", "5e8d45a39e95c650900d03f897fbf99ae04f60ab1daa4a34c7a20a5151b7a5fe", [:mix], [], "hexpm"},
   "mimerl": {:hex, :mimerl, "1.0.2", "993f9b0e084083405ed8252b99460c4f0563e41729ab42d9074fd5e52439be88", [:rebar3], []},
+  "mix_erlang_tasks": {:hex, :mix_erlang_tasks, "0.1.0", "36819fec60b80689eb1380938675af215565a89320a9e29c72c70d97512e4649", [:mix], [], "hexpm"},
   "mochiweb": {:hex, :mochiweb, "2.18.0", "eb55f1db3e6e960fac4e6db4e2db9ec3602cc9f30b86cd1481d56545c3145d2e", [:rebar3], [], "hexpm"},
   "mock": {:hex, :mock, "0.3.2", "e98e998fd76c191c7e1a9557c8617912c53df3d4a6132f561eb762b699ef59fa", [:mix], [{:meck, "~> 0.8.8", [hex: :meck, repo: "hexpm", optional: false]}], "hexpm"},
   "mox": {:hex, :mox, "0.4.0", "7f120840f7d626184a3d65de36189ca6f37d432e5d63acd80045198e4c5f7e6e", [:mix], [], "hexpm"},