Merge branch 'master' into 638

.gitignore

@@ -1,6 +1,7 @@
 # App artifacts
 /_build
 /apps/*/cover
+/apps/*/logs
 /cover
 /db
 /deps
@@ -15,8 +16,7 @@ erl_crash.dump
 npm-debug.log
 
 # Static artifacts
-/apps/block_scout_web/assets/node_modules
+/apps/**/node_modules
-/apps/explorer/node_modules
 
 # Since we are building assets from assets/,
 # we ignore priv/static. You may want to comment
@@ -30,7 +30,6 @@ npm-debug.log
 # secrets files as long as you replace their contents by environment
 # variables.
 /apps/*/config/*.secret.exs
-/apps/*/cover/
 
 # Wallaby screenshots
 screenshots/

apps/block_scout_web/assets/__tests__/lib/currency.js

@@ -1,7 +1,11 @@
 import { formatUsdValue } from '../../js/lib/currency'
 
 test('formatUsdValue', () => {
-  expect(formatUsdValue(0.0000001)).toEqual('< $0.000001 USD')
+  window.localized = {
+    'Less than': 'Less than'
+  }
+  expect(formatUsdValue(0)).toEqual('$0.000000 USD')
+  expect(formatUsdValue(0.0000001)).toEqual('Less than $0.000001 USD')
   expect(formatUsdValue(0.123456789)).toEqual('$0.123457 USD')
   expect(formatUsdValue(0.1234)).toEqual('$0.123400 USD')
   expect(formatUsdValue(1.23456789)).toEqual('$1.23 USD')

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

@@ -40,7 +40,6 @@ test('RECEIVED_NEW_EXCHANGE_RATE', () => {
     msg: {
       exchangeRate: {
         availableSupply: 1000000,
-        usdValue: 1.23,
         marketCapUsd: 1230000
       },
       marketHistoryData: { data: 'some stuff' }
@@ -50,7 +49,6 @@ test('RECEIVED_NEW_EXCHANGE_RATE', () => {
 
   expect(output.availableSupply).toEqual(1000000)
   expect(output.marketHistoryData).toEqual({ data: 'some stuff' })
-  expect(output.usdExchangeRate).toEqual(1.23)
   expect(output.usdMarketCap).toEqual(1230000)
 })
 

apps/block_scout_web/assets/js/app.js

@@ -21,6 +21,7 @@ import 'bootstrap'
 import './locale'
 
 import './lib/clipboard_buttons'
+import './lib/currency'
 import './lib/from_now'
 import './lib/loading_element'
 import './lib/market_history_chart'
@@ -31,6 +32,7 @@ import './lib/pretty_json'
 import './lib/try_api'
 import './lib/token_balance_dropdown'
 import './lib/token_transfers_toggle'
+import './lib/stop_propagation'
 
 import './pages/address'
 import './pages/block'

apps/block_scout_web/assets/js/lib/currency.js

@@ -1,8 +1,44 @@
+import $ from 'jquery'
+import humps from 'humps'
 import numeral from 'numeral'
+import { BigNumber } from 'bignumber.js'
+import socket from '../socket'
 
 export function formatUsdValue (value) {
-  if (value < 0.000001) return '< $0.000001 USD'
+  if (value === 0) return '$0.000000 USD'
+  if (value < 0.000001) return `${window.localized['Less than']} $0.000001 USD`
   if (value < 1) return `$${numeral(value).format('0.000000')} USD`
   if (value < 100000) return `$${numeral(value).format('0,0.00')} USD`
   return `$${numeral(value).format('0,0')} USD`
 }
+
+function weiToEther (wei) {
+  return new BigNumber(wei).dividedBy('1000000000000000000').toNumber()
+}
+
+function etherToUSD (ether, usdExchangeRate) {
+  return new BigNumber(ether).multipliedBy(usdExchangeRate).toNumber()
+}
+
+function formatAllUsdValues () {
+  $('[data-usd-value]').each((i, el) => {
+    el.innerHTML = formatUsdValue(el.dataset.usdValue)
+  })
+}
+formatAllUsdValues()
+
+function tryUpdateCalculatedUsdValues (el, usdExchangeRate = el.dataset.usdExchangeRate) {
+  if (!el.dataset.hasOwnProperty('weiValue')) return
+  const ether = weiToEther(el.dataset.weiValue)
+  const usd = etherToUSD(ether, usdExchangeRate)
+  const formattedUsd = formatUsdValue(usd)
+  if (formattedUsd !== el.innerHTML) el.innerHTML = formattedUsd
+}
+function updateAllCalculatedUsdValues (usdExchangeRate) {
+  $('[data-usd-exchange-rate]').each((i, el) => tryUpdateCalculatedUsdValues(el, usdExchangeRate))
+}
+updateAllCalculatedUsdValues()
+
+export const exchangeRateChannel = socket.channel(`exchange_rate:new_rate`)
+exchangeRateChannel.join()
+exchangeRateChannel.on('new_rate', (msg) => updateAllCalculatedUsdValues(humps.camelizeKeys(msg).exchangeRate.usdValue))

apps/block_scout_web/assets/js/lib/market_history_chart.js

@@ -1,6 +1,7 @@
 import Chart from 'chart.js'
 import humps from 'humps'
 import numeral from 'numeral'
+import { formatUsdValue } from '../lib/currency'
 import sassVariables from '../../css/app.scss'
 
 const config = {
@@ -33,7 +34,7 @@ const config = {
         },
         ticks: {
           beginAtZero: true,
-          callback: (value, index, values) => formatPrice(value),
+          callback: (value, index, values) => `$${numeral(value).format('0,0.00')}`,
           maxTicksLimit: 4
         }
       }, {
@@ -56,10 +57,10 @@ const config = {
       callbacks: {
         label: ({datasetIndex, yLabel}, {datasets}) => {
           const label = datasets[datasetIndex].label
-          if (datasets[datasetIndex].label === 'Price') {
+          if (datasets[datasetIndex].yAxisID === 'price') {
-            return `${label}: ${formatPrice(yLabel)}`
+            return `${label}: ${formatUsdValue(yLabel)}`
-          } else if (datasets[datasetIndex].label === 'Market Cap') {
+          } else if (datasets[datasetIndex].yAxisID === 'marketCap') {
-            return `${label}: ${formatMarketCap(yLabel)}`
+            return `${label}: ${formatUsdValue(yLabel)}`
           } else {
             return yLabel
           }
@@ -69,14 +70,6 @@ const config = {
   }
 }
 
-function formatPrice (price) {
-  return `$${numeral(price).format('0,0.00[0000000000000000]')}`
-}
-
-function formatMarketCap (marketCap) {
-  return numeral(marketCap).format('($0,0a)')
-}
-
 function getPriceData (marketHistoryData) {
   return marketHistoryData.map(({ date, closingPrice }) => ({x: date, y: closingPrice}))
 }
@@ -88,7 +81,7 @@ function getMarketCapData (marketHistoryData, availableSupply) {
 class MarketHistoryChart {
   constructor (el, availableSupply, marketHistoryData) {
     this.price = {
-      label: 'Price',
+      label: window.localized['Price'],
       yAxisID: 'price',
       data: getPriceData(marketHistoryData),
       fill: false,
@@ -98,7 +91,7 @@ class MarketHistoryChart {
       lineTension: 0
     }
     this.marketCap = {
-      label: 'Market Cap',
+      label: window.localized['Market Cap'],
       yAxisID: 'marketCap',
       data: getMarketCapData(marketHistoryData, availableSupply),
       fill: false,

apps/block_scout_web/assets/js/lib/stop_propagation.js

@@ -0,0 +1,3 @@
+import $ from 'jquery'
+
+$('[data-selector="stop-propagation"]').click((event) => event.stopPropagation())

apps/block_scout_web/assets/js/pages/chain.js

@@ -4,7 +4,7 @@ import numeral from 'numeral'
 import router from '../router'
 import socket from '../socket'
 import { updateAllAges } from '../lib/from_now'
-import { formatUsdValue } from '../lib/currency'
+import { exchangeRateChannel, formatUsdValue } from '../lib/currency'
 import { batchChannel, initRedux } from '../utils'
 import { createMarketHistoryChart } from '../lib/market_history_chart'
 
@@ -19,7 +19,6 @@ export const initialState = {
   newBlock: null,
   newTransactions: [],
   transactionCount: null,
-  usdExchangeRate: null,
   usdMarketCap: null
 }
 
@@ -45,7 +44,6 @@ export function reducer (state = initialState, action) {
       return Object.assign({}, state, {
         availableSupply: action.msg.exchangeRate.availableSupply,
         marketHistoryData: action.msg.marketHistoryData,
-        usdExchangeRate: action.msg.exchangeRate.usdValue,
         usdMarketCap: action.msg.exchangeRate.marketCapUsd
       })
     }
@@ -85,8 +83,6 @@ router.when('', { exactPathMatch: true }).then(() => initRedux(reducer, {
     blocksChannel.join()
     blocksChannel.on('new_block', msg => store.dispatch({ type: 'RECEIVED_NEW_BLOCK', msg: humps.camelizeKeys(msg) }))
 
-    const exchangeRateChannel = socket.channel(`exchange_rate:new_rate`)
-    exchangeRateChannel.join()
     exchangeRateChannel.on('new_rate', (msg) => store.dispatch({ type: 'RECEIVED_NEW_EXCHANGE_RATE', msg: humps.camelizeKeys(msg) }))
 
     const transactionsChannel = socket.channel(`transactions:new_transaction`)
@@ -103,7 +99,6 @@ router.when('', { exactPathMatch: true }).then(() => initRedux(reducer, {
     const $blockList = $('[data-selector="chain-block-list"]')
     const $channelBatching = $('[data-selector="channel-batching-message"]')
     const $channelBatchingCount = $('[data-selector="channel-batching-count"]')
-    const $exchangeRate = $('[data-selector="exchange-rate"]')
     const $marketCap = $('[data-selector="market-cap"]')
     const $transactionsList = $('[data-selector="transactions-list"]')
     const $transactionCount = $('[data-selector="transaction-count"]')
@@ -114,9 +109,6 @@ router.when('', { exactPathMatch: true }).then(() => initRedux(reducer, {
     if (oldState.averageBlockTime !== state.averageBlockTime) {
       $averageBlockTime.empty().append(state.averageBlockTime)
     }
-    if (oldState.usdExchangeRate !== state.usdExchangeRate) {
-      $exchangeRate.empty().append(formatUsdValue(state.usdExchangeRate))
-    }
     if (oldState.usdMarketCap !== state.usdMarketCap) {
       $marketCap.empty().append(formatUsdValue(state.usdMarketCap))
     }

apps/block_scout_web/assets/package-lock.json

@@ -1448,6 +1448,11 @@
       "integrity": "sha512-+hN/Zh2D08Mx65pZ/4g5bsmNiZUuChDiQfTUQ7qJr4/kuopCr88xZsAXv6mBoZEsUI4OuGHlX59qE94K2mMW8Q==",
       "dev": true
     },
+    "bignumber.js": {
+      "version": "7.2.1",
+      "resolved": "https://registry.npmjs.org/bignumber.js/-/bignumber.js-7.2.1.tgz",
+      "integrity": "sha512-S4XzBk5sMB+Rcb/LNcpzXr57VRTxgAvaAEDAl1AwRx27j00hT84O6OkteE7u8UB3NuaaygCRrEpqox4uDOrbdQ=="
+    },
     "binary-extensions": {
       "version": "1.11.0",
       "resolved": "https://registry.npmjs.org/binary-extensions/-/binary-extensions-1.11.0.tgz",

apps/block_scout_web/assets/package.json

@@ -20,6 +20,7 @@
   },
   "dependencies": {
     "@fortawesome/fontawesome-free": "^5.1.0-4",
+    "bignumber.js": "^7.2.1",
     "bootstrap": "^4.1.0",
     "chart.js": "^2.7.2",
     "clipboard": "^2.0.1",

apps/block_scout_web/lib/block_scout_web/exchange_rates/usd.ex

@@ -1,42 +0,0 @@
-defmodule BlockScoutWeb.ExchangeRates.USD do
-  @moduledoc """
-  Struct and associated conversion functions for USD currency
-  """
-
-  @typedoc """
-  Represents USD currency
-
-  * `:value` - value in USD
-  """
-  @type t :: %__MODULE__{
-          value: Decimal.t() | nil
-        }
-
-  defstruct ~w(value)a
-
-  alias Explorer.Chain.Wei
-  alias Explorer.ExchangeRates.Token
-
-  def from(nil), do: null()
-
-  def from(%Decimal{} = usd_decimal) do
-    %__MODULE__{value: usd_decimal}
-  end
-
-  def from(nil, _), do: null()
-
-  def from(_, nil), do: null()
-
-  def from(%Wei{value: nil}, _), do: null()
-
-  def from(_, %Token{usd_value: nil}), do: null()
-
-  def from(%Wei{} = wei, %Token{usd_value: exchange_rate}) do
-    ether = Wei.to(wei, :ether)
-    %__MODULE__{value: Decimal.mult(ether, exchange_rate)}
-  end
-
-  def null do
-    %__MODULE__{value: nil}
-  end
-end

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

@@ -4,9 +4,12 @@
     <span></span>
     <div class="text-right">
       <h3 class="text-white" data-test="address_balance"><%= balance(@address) %></h3>
-      <span class="text-light"><%= formatted_usd(@address, @exchange_rate) %></span>
+      <span class="text-light"
+        data-wei-value="<%= if @address.fetched_coin_balance, do: @address.fetched_coin_balance.value %>"
+        data-usd-exchange-rate="<%= @exchange_rate.usd_value %>">
+      </span>
 
-      <div class="mt-3" data-token-balance-dropdown data-api_path=<%= address_token_balance_path(@conn, :index, :en, @address.hash) %> >
+      <div class="mt-3" data-token-balance-dropdown data-api_path="<%= address_token_balance_path(@conn, :index, :en, @address.hash) %>">
           <p data-loading class="mb-0 text-light" style="display: none;">
             <i class="fa fa-spinner fa-spin"></i>
             <%= gettext("Fetching tokens...") %>

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

@@ -1,20 +0,0 @@
-<div class="card">
-  <div class="card-body">
-    <h2 class="card-title"><%= gettext "Token Holdings" %></h2>
-
-    <!-- Dropdown -->
-    <div data-token-balance-dropdown
-         data-api_path=<%= address_token_balance_path(@conn, :index, :en, @address.hash) %>
-         class="icon-links ml-3 mb-3"
-         >
-        <p data-loading class="mb-0" stytle="display: none">
-          <i class="fa fa-spinner fa-spin"></i>
-          <%= gettext("Fetching tokens...") %>
-        </p>
-
-        <p data-error-message class="mb-0" style="display: none">
-          <%= gettext("Error tryng to fetch balances.") %>
-        </p>
-    </div>
-  </div>
-</div>

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

@@ -51,7 +51,7 @@
         </div>
       </div>
     </div>
-    <div class="card-section col-md-6 col-lg-4" data-selector="balance-card">
+    <div class="card-section col-md-12 col-lg-4" data-selector="balance-card">
       <%= render BlockScoutWeb.AddressView, "_balance_card.html", conn: @conn, address: @address, exchange_rate: @exchange_rate %>
     </div>
 

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

@@ -7,7 +7,7 @@
         <span class="badge badge-primary tile-badge float-right mr-1"><%= gettext "GET" %></span>
         <strong class="tile-label"><%= @action.name %></strong>
       </h3>
-      <h4 class="text-dark"><%= raw @action.description %></h4>
+      <h4 class="text-dark"><span data-selector="stop-propagation"><%= raw @action.description %></span></h4>
       <code><%= raw query_params(@module_name, @action) %></code>
     </button>
   </div>

apps/block_scout_web/lib/block_scout_web/templates/chain/show.html.eex

@@ -9,16 +9,14 @@
           <span class="dashboard-banner-chart-legend-label">
             <%= gettext "Price" %>
           </span>
-          <span class="dashboard-banner-chart-legend-value" data-selector="exchange-rate">
+          <span class="dashboard-banner-chart-legend-value" data-selector="exchange-rate" data-wei-value="<%= Explorer.Chain.Wei.from(Decimal.new(1), :ether).value %>" data-usd-exchange-rate="<%= @exchange_rate.usd_value %>">
-            <%= format_exchange_rate(@exchange_rate) %>
           </span>
         </div>
         <div class="dashboard-banner-chart-legend-item">
           <span class="dashboard-banner-chart-legend-label">
             <%= gettext "Market Cap" %>
           </span>
-          <span class="dashboard-banner-chart-legend-value" data-selector="market-cap">
+          <span class="dashboard-banner-chart-legend-value" data-selector="market-cap" data-usd-value="<%= @exchange_rate.market_cap_usd %>">
-            <%= format_market_cap(@exchange_rate) %>
           </span>
         </div>
       </div>

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

@@ -18,6 +18,13 @@
       </main>
       <%= render BlockScoutWeb.LayoutView, "_footer.html", assigns %>
     </div>
+    <script>
+      window.localized = {
+        'Less than': '<%= gettext("Less than") %>',
+        'Market Cap': '<%= gettext("Market Cap") %>',
+        'Price': '<%= gettext("Price") %>',
+      }
+    </script>
     <script src="<%= static_path(@conn, "/js/app.js") %>"></script>
   </body>
 </html>

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

@@ -55,7 +55,9 @@
           <!-- TX Fee -->
           <dl class="row">
             <dt class="col-sm-3 text-muted"> <%= gettext "TX Fee" %> </dt>
-            <dd class="col-sm-9"> <%= formatted_fee(@transaction, denomination: :ether) %> (<%= formatted_fee(@transaction, exchange_rate: @exchange_rate) %>)</dd>
+            <dd class="col-sm-9">
+              <%= formatted_fee(@transaction, denomination: :ether) %> (<span data-wei-value=<%= fee(@transaction) %> data-usd-exchange-rate=<%= @exchange_rate.usd_value %>></span>)
+            </dd>
           </dl>
 
           <!-- Input -->
@@ -82,7 +84,7 @@
           <h2 class="card-title text-white"><%= gettext "Ether" %> <%= gettext "Value" %></h2>
           <div class="text-right">
             <h3 class="text-white"> <%= value(@transaction) %></h3>
-            <span class="text-light"> <%= formatted_usd_value(@transaction, @exchange_rate) %></span>
+            <span class="text-light" data-wei-value=<%= @transaction.value.value %> data-usd-exchange-rate=<%= @exchange_rate.usd_value %>></span>
           </div>
         </div>
       </div>

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

@@ -1,10 +1,7 @@
 defmodule BlockScoutWeb.AddressView do
   use BlockScoutWeb, :view
 
-  alias Explorer.Chain.{Address, Hash, SmartContract, Wei}
+  alias Explorer.Chain.{Address, Hash, SmartContract}
-
-  alias Explorer.ExchangeRates.Token
-  alias BlockScoutWeb.ExchangeRates.USD
 
   @dialyzer :no_match
 
@@ -37,20 +34,6 @@ defmodule BlockScoutWeb.AddressView do
 
   def contract?(nil), do: true
 
-  def formatted_usd(%Address{fetched_coin_balance: nil}, _), do: nil
-
-  def formatted_usd(%Address{fetched_coin_balance: balance}, %Token{} = exchange_rate) do
-    case Wei.cast(balance) do
-      {:ok, wei} ->
-        wei
-        |> USD.from(exchange_rate)
-        |> format_usd_value()
-
-      _ ->
-        nil
-    end
-  end
-
   def hash(%Address{hash: hash}) do
     to_string(hash)
   end

apps/block_scout_web/lib/block_scout_web/views/chain_view.ex

@@ -1,9 +1,6 @@
 defmodule BlockScoutWeb.ChainView do
   use BlockScoutWeb, :view
 
-  alias Explorer.ExchangeRates.Token
-  alias BlockScoutWeb.ExchangeRates.USD
-
   def encode_market_history_data(market_history_data) do
     market_history_data
     |> Enum.map(fn day -> Map.take(day, [:closing_price, :date]) end)
@@ -13,16 +10,4 @@ defmodule BlockScoutWeb.ChainView do
       _ -> []
     end
   end
-
-  def format_exchange_rate(%Token{usd_value: usd_value}) do
-    usd_value
-    |> USD.from()
-    |> format_usd_value()
-  end
-
-  def format_market_cap(%Token{market_cap_usd: market_cap}) do
-    market_cap
-    |> USD.from()
-    |> format_usd_value()
-  end
 end

apps/block_scout_web/lib/block_scout_web/views/currency_helpers.ex

@@ -3,46 +3,8 @@ defmodule BlockScoutWeb.CurrencyHelpers do
   Helper functions for interacting with `t:BlockScoutWeb.ExchangeRates.USD.t/0` values.
   """
 
-  alias BlockScoutWeb.ExchangeRates.USD
   alias BlockScoutWeb.Cldr.Number
 
-  @doc """
-  Formats a `BlockScoutWeb.ExchangeRates.USD` value into USD and applies a unit label.
-
-  ## Examples
-
-      iex> format_usd_value(%USD{value: Decimal.new(0.0000001)})
-      "< $0.000001 USD"
-
-      iex> format_usd_value(%USD{value: Decimal.new(0.123456789)})
-      "$0.123457 USD"
-
-      iex> format_usd_value(%USD{value: Decimal.new(0.1234)})
-      "$0.123400 USD"
-
-      iex> format_usd_value(%USD{value: Decimal.new(1.23456789)})
-      "$1.23 USD"
-
-      iex> format_usd_value(%USD{value: Decimal.new(1.2)})
-      "$1.20 USD"
-
-      iex> format_usd_value(%USD{value: Decimal.new(123456.789)})
-      "$123,457 USD"
-  """
-  @spec format_usd_value(USD.t() | nil) :: binary() | nil
-  def format_usd_value(nil), do: nil
-
-  def format_usd_value(%USD{value: nil}), do: nil
-
-  def format_usd_value(%USD{value: value}) do
-    cond do
-      Decimal.cmp(value, "0.000001") == :lt -> "< $0.000001 USD"
-      Decimal.cmp(value, 1) == :lt -> "$#{Number.to_string!(value, format: "0.000000")} USD"
-      Decimal.cmp(value, 100_000) == :lt -> "$#{Number.to_string!(value, format: "#,###.00")} USD"
-      true -> "$#{Number.to_string!(value, format: "#,###")} USD"
-    end
-  end
-
   @doc """
   Formats the given integer value to a currency format.
 

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

@@ -4,9 +4,7 @@ defmodule BlockScoutWeb.TransactionView do
   alias Cldr.Number
   alias Explorer.Chain
   alias Explorer.Chain.{Address, InternalTransaction, Transaction, Wei}
-  alias Explorer.ExchangeRates.Token
   alias BlockScoutWeb.{AddressView, BlockView}
-  alias BlockScoutWeb.ExchangeRates.USD
 
   import BlockScoutWeb.Gettext
 
@@ -30,14 +28,18 @@ defmodule BlockScoutWeb.TransactionView do
 
   def to_address_hash(%Transaction{to_address: %Address{hash: address_hash}}), do: address_hash
 
+  def fee(%Transaction{} = transaction) do
+    {_, value} = Chain.fee(transaction, :wei)
+    value
+  end
+
   def formatted_fee(%Transaction{} = transaction, opts) do
     transaction
     |> Chain.fee(:wei)
-    |> fee_to_currency(opts)
+    |> fee_to_denomination(opts)
     |> case do
-      {_, nil} -> nil
       {:actual, value} -> value
-      {:maximum, value} -> "<= " <> value
+      {:maximum, value} -> "#{gettext("Max of")} #{value}"
     end
   end
 
@@ -80,12 +82,6 @@ defmodule BlockScoutWeb.TransactionView do
     end
   end
 
-  def formatted_usd_value(%Transaction{value: nil}, _token), do: nil
-
-  def formatted_usd_value(%Transaction{value: value}, token) do
-    format_usd_value(USD.from(value, token))
-  end
-
   defdelegate formatted_timestamp(block), to: BlockView
 
   def gas(%type{gas: gas}) when is_transaction_type(type) do
@@ -137,23 +133,6 @@ defmodule BlockScoutWeb.TransactionView do
     format_wei_value(value, :ether, include_unit_label: include_label?)
   end
 
-  defp fee_to_currency(fee, options) do
-    case Keyword.fetch(options, :exchange_rate) do
-      {:ok, exchange_rate} -> fee_to_usd(fee, exchange_rate)
-      :error -> fee_to_denomination(fee, options)
-    end
-  end
-
-  defp fee_to_usd({fee_type, fee}, %Token{} = exchange_rate) do
-    formatted =
-      fee
-      |> Wei.from(:wei)
-      |> USD.from(exchange_rate)
-      |> format_usd_value()
-
-    {fee_type, formatted}
-  end
-
   defp fee_to_denomination({fee_type, fee}, opts) do
     denomination = Keyword.get(opts, :denomination)
     include_label? = Keyword.get(opts, :include_label, true)

apps/block_scout_web/priv/gettext/default.pot

@@ -6,7 +6,7 @@ msgstr ""
 msgid "Block"
 msgstr ""
 
-#: lib/block_scout_web/templates/chain/show.html.eex:58
+#: lib/block_scout_web/templates/chain/show.html.eex:56
 #: lib/block_scout_web/templates/layout/_topnav.html.eex:13
 msgid "Blocks"
 msgstr ""
@@ -43,14 +43,14 @@ msgstr ""
 #: lib/block_scout_web/templates/block_transaction/index.html.eex:13
 #: lib/block_scout_web/templates/block_transaction/index.html.eex:26
 #: lib/block_scout_web/templates/block_transaction/index.html.eex:36
-#: lib/block_scout_web/templates/chain/show.html.eex:75
+#: lib/block_scout_web/templates/chain/show.html.eex:73
 #: lib/block_scout_web/templates/layout/_topnav.html.eex:18
 #: lib/block_scout_web/templates/pending_transaction/index.html.eex:46
 #: lib/block_scout_web/templates/transaction/index.html.eex:56
 msgid "Transactions"
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:82
+#: lib/block_scout_web/templates/transaction/overview.html.eex:84
 msgid "Value"
 msgstr ""
 
@@ -110,7 +110,7 @@ msgstr ""
 msgid "Cumulative Gas Used"
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:93
+#: lib/block_scout_web/templates/transaction/overview.html.eex:95
 msgid "Gas"
 msgstr ""
 
@@ -118,7 +118,7 @@ msgstr ""
 msgid "Gas Price"
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:63
+#: lib/block_scout_web/templates/transaction/overview.html.eex:65
 msgid "Input"
 msgstr ""
 
@@ -130,7 +130,7 @@ msgstr ""
 msgid "%{count} transactions in this block"
 msgstr ""
 
-#: lib/block_scout_web/views/address_view.ex:15
+#: lib/block_scout_web/views/address_view.ex:12
 msgid "Address"
 msgstr ""
 
@@ -146,7 +146,7 @@ msgstr ""
 msgid "Overview"
 msgstr ""
 
-#: lib/block_scout_web/views/transaction_view.ex:79
+#: lib/block_scout_web/views/transaction_view.ex:81
 msgid "Success"
 msgstr ""
 
@@ -198,8 +198,8 @@ msgstr ""
 #: lib/block_scout_web/templates/transaction/index.html.eex:16
 #: lib/block_scout_web/templates/transaction/index.html.eex:35
 #: lib/block_scout_web/templates/transaction/overview.html.eex:40
-#: lib/block_scout_web/views/transaction_view.ex:44
+#: lib/block_scout_web/views/transaction_view.ex:46
-#: lib/block_scout_web/views/transaction_view.ex:78
+#: lib/block_scout_web/views/transaction_view.ex:80
 msgid "Pending"
 msgstr ""
 
@@ -267,11 +267,11 @@ msgstr ""
 msgid "Next Page"
 msgstr ""
 
-#: lib/block_scout_web/views/transaction_view.ex:76
+#: lib/block_scout_web/views/transaction_view.ex:78
 msgid "Failed"
 msgstr ""
 
-#: lib/block_scout_web/views/transaction_view.ex:77
+#: lib/block_scout_web/views/transaction_view.ex:79
 msgid "Out of Gas"
 msgstr ""
 
@@ -291,7 +291,7 @@ msgstr ""
 #: lib/block_scout_web/templates/address_internal_transaction/_internal_transaction.html.eex:22
 #: lib/block_scout_web/templates/pending_transaction/index.html.eex:68
 #: lib/block_scout_web/templates/transaction/_tile.html.eex:24
-#: lib/block_scout_web/templates/transaction/overview.html.eex:82
+#: lib/block_scout_web/templates/transaction/overview.html.eex:84
 #: lib/block_scout_web/templates/transaction_internal_transaction/_internal_transaction.html.eex:16
 #: lib/block_scout_web/views/wei_helpers.ex:72
 msgid "Ether"
@@ -391,11 +391,13 @@ msgstr ""
 msgid "Avg Block Time"
 msgstr ""
 
-#: lib/block_scout_web/templates/chain/show.html.eex:18
+#: lib/block_scout_web/templates/chain/show.html.eex:17
+#: lib/block_scout_web/templates/layout/app.html.eex:24
 msgid "Market Cap"
 msgstr ""
 
 #: lib/block_scout_web/templates/chain/show.html.eex:10
+#: lib/block_scout_web/templates/layout/app.html.eex:25
 msgid "Price"
 msgstr ""
 
@@ -439,7 +441,7 @@ msgstr ""
 msgid "Total Gas Used"
 msgstr ""
 
-#: lib/block_scout_web/views/transaction_view.ex:124
+#: lib/block_scout_web/views/transaction_view.ex:120
 msgid "Transaction"
 msgstr ""
 
@@ -462,7 +464,7 @@ msgstr ""
 msgid "Contract"
 msgstr ""
 
-#: lib/block_scout_web/views/address_view.ex:13
+#: lib/block_scout_web/views/address_view.ex:10
 msgid "Contract Address"
 msgstr ""
 
@@ -524,7 +526,7 @@ msgid "Newer"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/views/transaction_view.ex:122
+#: lib/block_scout_web/views/transaction_view.ex:118
 msgid "Contract Creation"
 msgstr ""
 
@@ -554,27 +556,27 @@ msgid "Twitter"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/chain/show.html.eex:57
+#: lib/block_scout_web/templates/chain/show.html.eex:55
 msgid "View All Blocks →"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/chain/show.html.eex:74
+#: lib/block_scout_web/templates/chain/show.html.eex:72
 msgid "View All Transactions →"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/chain/show.html.eex:28
+#: lib/block_scout_web/templates/chain/show.html.eex:26
 msgid "Average block time"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/chain/show.html.eex:36
+#: lib/block_scout_web/templates/chain/show.html.eex:34
 msgid "Total transactions"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/chain/show.html.eex:44
+#: lib/block_scout_web/templates/chain/show.html.eex:42
 msgid "Wallet addresses"
 msgstr ""
 
@@ -621,7 +623,7 @@ msgid "Contract Address Pending"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/views/transaction_view.ex:123
+#: lib/block_scout_web/views/transaction_view.ex:119
 msgid "Contract Call"
 msgstr ""
 
@@ -698,7 +700,7 @@ msgid "Block Confirmations"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/transaction/overview.html.eex:105
+#: lib/block_scout_web/templates/transaction/overview.html.eex:107
 msgid "Limit"
 msgstr ""
 
@@ -714,14 +716,14 @@ msgid "There are no logs for this transaction."
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/transaction/overview.html.eex:98
+#: lib/block_scout_web/templates/transaction/overview.html.eex:100
 msgid "Used"
 msgstr ""
 
 #, elixir-format
 #: lib/block_scout_web/templates/tokens/token/_token_transfer.html.eex:4
 #: lib/block_scout_web/templates/transaction_token_transfer/_token_transfer.html.eex:4
-#: lib/block_scout_web/views/transaction_view.ex:121
+#: lib/block_scout_web/views/transaction_view.ex:117
 msgid "Token Transfer"
 msgstr ""
 
@@ -739,7 +741,7 @@ msgstr[1] ""
 
 #, elixir-format
 #: lib/block_scout_web/templates/address_transaction/index.html.eex:84
-#: lib/block_scout_web/templates/chain/show.html.eex:71
+#: lib/block_scout_web/templates/chain/show.html.eex:69
 #: lib/block_scout_web/templates/transaction/index.html.eex:48
 msgid "More transactions have come in"
 msgstr ""
@@ -821,22 +823,15 @@ msgstr[0] ""
 msgstr[1] ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/address/_balance_card.html.eex:16
+#: lib/block_scout_web/templates/address/_balance_card.html.eex:19
-#: lib/block_scout_web/templates/address/_token_holdings.html.eex:16
 msgid "Error tryng to fetch balances."
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/address/_balance_card.html.eex:12
+#: lib/block_scout_web/templates/address/_balance_card.html.eex:15
-#: lib/block_scout_web/templates/address/_token_holdings.html.eex:12
 msgid "Fetching tokens..."
 msgstr ""
 
-#, elixir-format
-#: lib/block_scout_web/templates/address/_token_holdings.html.eex:3
-msgid "Token Holdings"
-msgstr ""
-
 #, elixir-format
 #: lib/block_scout_web/templates/api_docs/_action_tile.html.eex:38
 #: lib/block_scout_web/templates/api_docs/_action_tile.html.eex:53
@@ -995,3 +990,13 @@ msgstr ""
 #: lib/block_scout_web/templates/transaction/_tile.html.eex:68
 msgid "View Less Transfers"
 msgstr ""
+
+#, elixir-format
+#: lib/block_scout_web/templates/layout/app.html.eex:23
+msgid "Less than"
+msgstr ""
+
+#, elixir-format
+#: lib/block_scout_web/views/transaction_view.ex:42
+msgid "Max of"
+msgstr ""

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

@@ -18,7 +18,7 @@ msgstr "Age"
 msgid "Block"
 msgstr "Block"
 
-#: lib/block_scout_web/templates/chain/show.html.eex:58
+#: lib/block_scout_web/templates/chain/show.html.eex:56
 #: lib/block_scout_web/templates/layout/_topnav.html.eex:13
 msgid "Blocks"
 msgstr "Blocks"
@@ -55,14 +55,14 @@ msgstr "BlockScout"
 #: lib/block_scout_web/templates/block_transaction/index.html.eex:13
 #: lib/block_scout_web/templates/block_transaction/index.html.eex:26
 #: lib/block_scout_web/templates/block_transaction/index.html.eex:36
-#: lib/block_scout_web/templates/chain/show.html.eex:75
+#: lib/block_scout_web/templates/chain/show.html.eex:73
 #: lib/block_scout_web/templates/layout/_topnav.html.eex:18
 #: lib/block_scout_web/templates/pending_transaction/index.html.eex:46
 #: lib/block_scout_web/templates/transaction/index.html.eex:56
 msgid "Transactions"
 msgstr "Transactions"
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:82
+#: lib/block_scout_web/templates/transaction/overview.html.eex:84
 msgid "Value"
 msgstr "Value"
 
@@ -122,7 +122,7 @@ msgstr "Transaction Details"
 msgid "Cumulative Gas Used"
 msgstr "Cumulative Gas Used"
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:93
+#: lib/block_scout_web/templates/transaction/overview.html.eex:95
 msgid "Gas"
 msgstr "Gas"
 
@@ -130,7 +130,7 @@ msgstr "Gas"
 msgid "Gas Price"
 msgstr "Gas Price"
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:63
+#: lib/block_scout_web/templates/transaction/overview.html.eex:65
 msgid "Input"
 msgstr "Input"
 
@@ -142,7 +142,7 @@ msgstr "%{confirmations} block confirmations"
 msgid "%{count} transactions in this block"
 msgstr "%{count} transactions in this block"
 
-#: lib/block_scout_web/views/address_view.ex:15
+#: lib/block_scout_web/views/address_view.ex:12
 msgid "Address"
 msgstr "Address"
 
@@ -158,7 +158,7 @@ msgstr "From"
 msgid "Overview"
 msgstr "Overview"
 
-#: lib/block_scout_web/views/transaction_view.ex:79
+#: lib/block_scout_web/views/transaction_view.ex:81
 msgid "Success"
 msgstr "Success"
 
@@ -210,8 +210,8 @@ msgstr "Showing %{count} Transactions"
 #: lib/block_scout_web/templates/transaction/index.html.eex:16
 #: lib/block_scout_web/templates/transaction/index.html.eex:35
 #: lib/block_scout_web/templates/transaction/overview.html.eex:40
-#: lib/block_scout_web/views/transaction_view.ex:44
+#: lib/block_scout_web/views/transaction_view.ex:46
-#: lib/block_scout_web/views/transaction_view.ex:78
+#: lib/block_scout_web/views/transaction_view.ex:80
 msgid "Pending"
 msgstr "Pending"
 
@@ -279,11 +279,11 @@ msgstr ""
 msgid "Next Page"
 msgstr ""
 
-#: lib/block_scout_web/views/transaction_view.ex:76
+#: lib/block_scout_web/views/transaction_view.ex:78
 msgid "Failed"
 msgstr ""
 
-#: lib/block_scout_web/views/transaction_view.ex:77
+#: lib/block_scout_web/views/transaction_view.ex:79
 msgid "Out of Gas"
 msgstr ""
 
@@ -303,7 +303,7 @@ msgstr ""
 #: lib/block_scout_web/templates/address_internal_transaction/_internal_transaction.html.eex:22
 #: lib/block_scout_web/templates/pending_transaction/index.html.eex:68
 #: lib/block_scout_web/templates/transaction/_tile.html.eex:24
-#: lib/block_scout_web/templates/transaction/overview.html.eex:82
+#: lib/block_scout_web/templates/transaction/overview.html.eex:84
 #: lib/block_scout_web/templates/transaction_internal_transaction/_internal_transaction.html.eex:16
 #: lib/block_scout_web/views/wei_helpers.ex:72
 msgid "Ether"
@@ -403,11 +403,13 @@ msgstr ""
 msgid "Avg Block Time"
 msgstr ""
 
-#: lib/block_scout_web/templates/chain/show.html.eex:18
+#: lib/block_scout_web/templates/chain/show.html.eex:17
+#: lib/block_scout_web/templates/layout/app.html.eex:24
 msgid "Market Cap"
 msgstr ""
 
 #: lib/block_scout_web/templates/chain/show.html.eex:10
+#: lib/block_scout_web/templates/layout/app.html.eex:25
 msgid "Price"
 msgstr ""
 
@@ -451,7 +453,7 @@ msgstr ""
 msgid "Total Gas Used"
 msgstr ""
 
-#: lib/block_scout_web/views/transaction_view.ex:124
+#: lib/block_scout_web/views/transaction_view.ex:120
 msgid "Transaction"
 msgstr ""
 
@@ -474,7 +476,7 @@ msgstr ""
 msgid "Contract"
 msgstr ""
 
-#: lib/block_scout_web/views/address_view.ex:13
+#: lib/block_scout_web/views/address_view.ex:10
 msgid "Contract Address"
 msgstr ""
 
@@ -536,7 +538,7 @@ msgid "Newer"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/views/transaction_view.ex:122
+#: lib/block_scout_web/views/transaction_view.ex:118
 msgid "Contract Creation"
 msgstr ""
 
@@ -566,27 +568,27 @@ msgid "Twitter"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/chain/show.html.eex:57
+#: lib/block_scout_web/templates/chain/show.html.eex:55
 msgid "View All Blocks →"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/chain/show.html.eex:74
+#: lib/block_scout_web/templates/chain/show.html.eex:72
 msgid "View All Transactions →"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/chain/show.html.eex:28
+#: lib/block_scout_web/templates/chain/show.html.eex:26
 msgid "Average block time"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/chain/show.html.eex:36
+#: lib/block_scout_web/templates/chain/show.html.eex:34
 msgid "Total transactions"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/chain/show.html.eex:44
+#: lib/block_scout_web/templates/chain/show.html.eex:42
 msgid "Wallet addresses"
 msgstr ""
 
@@ -633,7 +635,7 @@ msgid "Contract Address Pending"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/views/transaction_view.ex:123
+#: lib/block_scout_web/views/transaction_view.ex:119
 msgid "Contract Call"
 msgstr ""
 
@@ -710,7 +712,7 @@ msgid "Block Confirmations"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/transaction/overview.html.eex:105
+#: lib/block_scout_web/templates/transaction/overview.html.eex:107
 msgid "Limit"
 msgstr ""
 
@@ -726,14 +728,14 @@ msgid "There are no logs for this transaction."
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/transaction/overview.html.eex:98
+#: lib/block_scout_web/templates/transaction/overview.html.eex:100
 msgid "Used"
 msgstr ""
 
 #, elixir-format
 #: lib/block_scout_web/templates/tokens/token/_token_transfer.html.eex:4
 #: lib/block_scout_web/templates/transaction_token_transfer/_token_transfer.html.eex:4
-#: lib/block_scout_web/views/transaction_view.ex:121
+#: lib/block_scout_web/views/transaction_view.ex:117
 msgid "Token Transfer"
 msgstr ""
 
@@ -751,7 +753,7 @@ msgstr[1] ""
 
 #, elixir-format
 #: lib/block_scout_web/templates/address_transaction/index.html.eex:84
-#: lib/block_scout_web/templates/chain/show.html.eex:71
+#: lib/block_scout_web/templates/chain/show.html.eex:69
 #: lib/block_scout_web/templates/transaction/index.html.eex:48
 msgid "More transactions have come in"
 msgstr ""
@@ -833,22 +835,15 @@ msgstr[0] ""
 msgstr[1] ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/address/_balance_card.html.eex:16
+#: lib/block_scout_web/templates/address/_balance_card.html.eex:19
-#: lib/block_scout_web/templates/address/_token_holdings.html.eex:16
 msgid "Error tryng to fetch balances."
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/address/_balance_card.html.eex:12
+#: lib/block_scout_web/templates/address/_balance_card.html.eex:15
-#: lib/block_scout_web/templates/address/_token_holdings.html.eex:12
 msgid "Fetching tokens..."
 msgstr ""
 
-#, elixir-format
-#: lib/block_scout_web/templates/address/_token_holdings.html.eex:3
-msgid "Token Holdings"
-msgstr ""
-
 #, elixir-format
 #: lib/block_scout_web/templates/api_docs/_action_tile.html.eex:38
 #: lib/block_scout_web/templates/api_docs/_action_tile.html.eex:53
@@ -1007,3 +1002,13 @@ msgstr ""
 #: lib/block_scout_web/templates/transaction/_tile.html.eex:68
 msgid "View Less Transfers"
 msgstr ""
+
+#, elixir-format
+#: lib/block_scout_web/templates/layout/app.html.eex:23
+msgid "Less than"
+msgstr ""
+
+#, elixir-format
+#: lib/block_scout_web/views/transaction_view.ex:42
+msgid "Max of"
+msgstr ""

apps/block_scout_web/test/block_scout_web/exchange_rates/usd_test.exs

@@ -1,48 +0,0 @@
-defmodule BlockScoutWeb.ExchangeRates.USDTest do
-  use ExUnit.Case, async: true
-
-  alias BlockScoutWeb.ExchangeRates.USD
-  alias Explorer.ExchangeRates.Token
-  alias Explorer.Chain.Wei
-
-  describe "from/2" do
-    test "with nil wei returns null object" do
-      token = %Token{usd_value: Decimal.new(0.5)}
-
-      assert USD.null() == USD.from(nil, token)
-    end
-
-    test "with nil token returns nil" do
-      wei = %Wei{value: Decimal.new(10_000_000_000_000)}
-
-      assert USD.null() == USD.from(wei, nil)
-    end
-
-    test "without a wei value returns nil" do
-      wei = %Wei{value: nil}
-      token = %Token{usd_value: Decimal.new(0.5)}
-
-      assert USD.null() == USD.from(wei, token)
-    end
-
-    test "without an exchange rate returns nil" do
-      wei = %Wei{value: Decimal.new(10_000_000_000_000)}
-      token = %Token{usd_value: nil}
-
-      assert USD.null() == USD.from(wei, token)
-    end
-
-    test "returns formatted usd value" do
-      wei = %Wei{value: Decimal.new(10_000_000_000_000)}
-      token = %Token{usd_value: Decimal.new(0.5)}
-
-      assert %USD{value: Decimal.new(0.000005)} == USD.from(wei, token)
-    end
-
-    test "returns USD struct from decimal usd value" do
-      value = Decimal.new(0.000005)
-
-      assert %USD{value: ^value} = USD.from(value)
-    end
-  end
-end

apps/block_scout_web/test/block_scout_web/features/pages/chain_page.ex

@@ -6,7 +6,6 @@ defmodule BlockScoutWeb.ChainPage do
   import Wallaby.Query, only: [css: 1, css: 2]
 
   alias Explorer.Chain.Transaction
-  alias BlockScoutWeb.ChainView
 
   def blocks(count: count) do
     css("[data-selector='chain-block']", count: count)
@@ -16,10 +15,6 @@ defmodule BlockScoutWeb.ChainPage do
     css("[data-test='contract-creation'] [data-address-hash='#{hash}']")
   end
 
-  def exchange_rate(token) do
-    css("[data-selector='exchange-rate']", text: ChainView.format_exchange_rate(token))
-  end
-
   def non_loaded_transaction_count(count) do
     css("[data-selector='channel-batching-count']", text: count)
   end

apps/block_scout_web/test/block_scout_web/views/address_view_test.exs

@@ -3,7 +3,6 @@ defmodule BlockScoutWeb.AddressViewTest do
 
   alias Explorer.Chain.Data
   alias BlockScoutWeb.AddressView
-  alias Explorer.ExchangeRates.Token
 
   describe "contract?/1" do
     test "with a smart contract" do
@@ -18,26 +17,6 @@ defmodule BlockScoutWeb.AddressViewTest do
     end
   end
 
-  describe "formatted_usd/2" do
-    test "without a fetched_coin_balance returns nil" do
-      address = build(:address, fetched_coin_balance: nil)
-      token = %Token{usd_value: Decimal.new(0.5)}
-      assert nil == AddressView.formatted_usd(address, token)
-    end
-
-    test "without a usd_value returns nil" do
-      address = build(:address)
-      token = %Token{usd_value: nil}
-      assert nil == AddressView.formatted_usd(address, token)
-    end
-
-    test "returns formatted usd value" do
-      address = build(:address, fetched_coin_balance: 10_000_000_000_000)
-      token = %Token{usd_value: Decimal.new(0.5)}
-      assert "$0.000005 USD" == AddressView.formatted_usd(address, token)
-    end
-  end
-
   describe "qr_code/1" do
     test "it returns an encoded value" do
       address = build(:address)

apps/block_scout_web/test/block_scout_web/views/chain_view_test.exs

@@ -1,7 +1,6 @@
 defmodule BlockScoutWeb.ChainViewTest do
   use BlockScoutWeb.ConnCase, async: true
 
-  alias Explorer.ExchangeRates.Token
   alias BlockScoutWeb.ChainView
 
   describe "encode_market_history_data/1" do
@@ -17,22 +16,4 @@ defmodule BlockScoutWeb.ChainViewTest do
                ChainView.encode_market_history_data(market_history_data)
     end
   end
-
-  describe "format_exchange_rate/1" do
-    test "returns a formatted usd value from a `Token`'s usd_value" do
-      token = %Token{usd_value: Decimal.new(5.45)}
-
-      assert "$5.45 USD" == ChainView.format_exchange_rate(token)
-      assert nil == ChainView.format_exchange_rate(%Token{usd_value: nil})
-    end
-  end
-
-  describe "format_market_cap/1" do
-    test "returns a formatted usd value from a `Token`'s market_cap_usd" do
-      token = %Token{market_cap_usd: Decimal.new(5.4)}
-
-      assert "$5.40 USD" == ChainView.format_market_cap(token)
-      assert nil == ChainView.format_market_cap(%Token{market_cap_usd: nil})
-    end
-  end
 end

apps/block_scout_web/test/block_scout_web/views/currency_helpers_test.exs

@@ -2,18 +2,9 @@ defmodule BlockScoutWeb.CurrencyHelpersTest do
   use ExUnit.Case
 
   alias BlockScoutWeb.CurrencyHelpers
-  alias BlockScoutWeb.ExchangeRates.USD
 
   doctest BlockScoutWeb.CurrencyHelpers, import: true
 
-  test "with nil it returns nil" do
-    assert nil == CurrencyHelpers.format_usd_value(nil)
-  end
-
-  test "with USD.null() it returns nil" do
-    assert nil == CurrencyHelpers.format_usd_value(USD.null())
-  end
-
   describe "format_according_to_decimals/1" do
     test "formats the amount as value considering the given decimals" do
       amount = Decimal.new(205_000_000_000_000)

apps/block_scout_web/test/block_scout_web/views/transaction_view_test.exs

@@ -2,7 +2,6 @@ defmodule BlockScoutWeb.TransactionViewTest do
   use BlockScoutWeb.ConnCase, async: true
 
   alias Explorer.Chain.Wei
-  alias Explorer.ExchangeRates.Token
   alias Explorer.Repo
   alias BlockScoutWeb.TransactionView
 
@@ -18,21 +17,16 @@ defmodule BlockScoutWeb.TransactionViewTest do
           gas_used: nil
         )
 
-      token = %Token{usd_value: Decimal.new(0.50)}
+      expected_value = "max of 0.009 POA"
-
-      expected_value = "<= 0.009 POA"
       assert expected_value == TransactionView.formatted_fee(transaction, denomination: :ether)
-      assert "<= $0.004500 USD" == TransactionView.formatted_fee(transaction, exchange_rate: token)
     end
 
-    test "with fee and exchange_rate" do
+    test "with fee" do
       {:ok, gas_price} = Wei.cast(3_000_000_000)
       transaction = build(:transaction, gas_price: gas_price, gas_used: Decimal.new(1_034_234.0))
-      token = %Token{usd_value: Decimal.new(0.50)}
 
       expected_value = "0.003102702 POA"
       assert expected_value == TransactionView.formatted_fee(transaction, denomination: :ether)
-      assert "$0.001551 USD" == TransactionView.formatted_fee(transaction, exchange_rate: token)
     end
 
     test "with fee but no available exchange_rate" do

apps/indexer/lib/indexer/token_balances.ex

@@ -5,11 +5,26 @@ defmodule Indexer.TokenBalances do
 
   alias Explorer.Token.BalanceReader
 
+  @doc """
+  Fetches TokenBalances from specific Addresses and Blocks in the Blockchain
+
+  Every `TokenBalance` is fetched asynchronously, but in case an exception is raised (such as a
+  timeout) during the RPC call the particular TokenBalance request is ignored.
+
+  ## token_balances
+
+  It is a list of a Map so that each map must have:
+
+  * `token_contract_address_hash` - The contract address that represents the Token in the blockchain.
+  * `address_hash` - The address_hash that we want to know the balance.
+  * `block_number` - The block number that the address_hash has the balance.
+  """
   def fetch_token_balances_from_blockchain(token_balances) do
     result =
       token_balances
-      |> Task.async_stream(&fetch_token_balance/1)
+      |> Task.async_stream(&fetch_token_balance/1, on_timeout: :kill_task)
-      |> Enum.map(&format_result/1)
+      |> Stream.map(&format_task_results/1)
+      |> Enum.filter(&ignore_request_with_timeouts/1)
 
     {:ok, result}
   end
@@ -34,5 +49,9 @@ defmodule Indexer.TokenBalances do
     Map.merge(token_balance, %{value: nil, value_fetched_at: nil})
   end
 
-  def format_result({_, token_balance}), do: token_balance
+  def format_task_results({:exit, :timeout}), do: {:error, :timeout}
+  def 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
 end

apps/indexer/test/indexer/token_balances_test.exs

@@ -60,6 +60,32 @@ defmodule Indexer.TokenBalancesTest do
                value_fetched_at: nil
              } = List.first(result)
     end
+
+    test "ignores results that raised :timeout" do
+      address = insert(:address)
+      token = insert(:token, contract_address: build(:contract_address))
+      address_hash_string = Hash.to_string(address.hash)
+
+      token_balance_params = [
+        %{
+          token_contract_address_hash: Hash.to_string(token.contract_address_hash),
+          address_hash: address_hash_string,
+          block_number: 1_000
+        },
+        %{
+          token_contract_address_hash: Hash.to_string(token.contract_address_hash),
+          address_hash: address_hash_string,
+          block_number: 1_001
+        }
+      ]
+
+      get_balance_from_blockchain()
+      get_balance_from_blockchain_with_timeout()
+
+      {:ok, result} = TokenBalances.fetch_token_balances_from_blockchain(token_balance_params)
+
+      assert length(result) == 1
+    end
   end
 
   defp get_balance_from_blockchain() do
@@ -79,6 +105,16 @@ defmodule Indexer.TokenBalancesTest do
     )
   end
 
+  defp get_balance_from_blockchain_with_timeout() do
+    expect(
+      EthereumJSONRPC.Mox,
+      :json_rpc,
+      fn [%{id: _, method: _, params: [%{data: _, to: _}, _]}], _options ->
+        :timer.sleep(5001)
+      end
+    )
+  end
+
   defp get_balance_from_blockchain_with_error() do
     expect(
       EthereumJSONRPC.Mox,

coveralls.json

@@ -1,7 +1,7 @@
 {
   "coverage_options": {
     "treat_no_relevant_lines_as_covered": true,
-    "minimum_coverage": 94.5
+    "minimum_coverage": 88
   },
   "terminal_options": {
     "file_column_width": 120