Merge pull request #9386 from blockscout/vb-filecon-jsonrpc

Filecoin JSON RPC variant
8 months ago · 7bb28d5f8c
parent aa1f7be653 41f8f1cbd2
commit 7bb28d5f8c
18 changed files with 6179 additions and 34 deletions
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@ -9,6 +9,7 @@
 - [#9403](https://github.com/blockscout/blockscout/pull/9403) - Null round handling
 - [#9401](https://github.com/blockscout/blockscout/pull/9401) - Eliminate incorrect token transfers with empty token_ids
 - [#9396](https://github.com/blockscout/blockscout/pull/9396) - More-Minimal Proxy support
+- [#9386](https://github.com/blockscout/blockscout/pull/9386) - Filecoin JSON RPC variant
 - [#9379](https://github.com/blockscout/blockscout/pull/9379) - Filter non-traceable transactions for zetachain
 - [#9364](https://github.com/blockscout/blockscout/pull/9364) - Fix using of startblock/endblock in API v1 list endpoints: txlist, txlistinternal, tokentx
 - [#9360](https://github.com/blockscout/blockscout/pull/9360) - Move missing ranges sanitize to a separate background migration
--- a/apps/ethereum_jsonrpc/lib/ethereum_jsonrpc/filecoin.ex
+++ b/apps/ethereum_jsonrpc/lib/ethereum_jsonrpc/filecoin.ex
--- a/apps/ethereum_jsonrpc/lib/ethereum_jsonrpc/geth.ex
+++ b/apps/ethereum_jsonrpc/lib/ethereum_jsonrpc/geth.ex
@ -89,7 +89,8 @@ defmodule EthereumJSONRPC.Geth do
    end
  end

-  defp check_errors_exist(blocks_responses, id_to_params) do
+  @spec check_errors_exist(list(), %{non_neg_integer() => any()}) :: :ok | {:error, list()}
+  def check_errors_exist(blocks_responses, id_to_params) do
    blocks_responses
    |> EthereumJSONRPC.sanitize_responses(id_to_params)
    |> Enum.reduce([], fn
@ -400,7 +401,8 @@ defmodule EthereumJSONRPC.Geth do
    |> Enum.reduce(acc, &parse_call_tracer_calls(&1, &2, trace_address))
  end

-  defp reduce_internal_transactions_params(internal_transactions_params) when is_list(internal_transactions_params) do
+  @spec reduce_internal_transactions_params(list()) :: {:ok, list()} | {:error, list()}
+  def reduce_internal_transactions_params(internal_transactions_params) when is_list(internal_transactions_params) do
    internal_transactions_params
    |> Enum.reduce({:ok, []}, &internal_transactions_params_reducer/2)
    |> finalize_internal_transactions_params()
--- a/apps/ethereum_jsonrpc/lib/ethereum_jsonrpc/variant.ex
+++ b/apps/ethereum_jsonrpc/lib/ethereum_jsonrpc/variant.ex
@ -96,7 +96,9 @@ defmodule EthereumJSONRPC.Variant do
            ) :: {:ok, [raw_trace_params]} | {:error, reason :: term} | :ignore

  def get do
-    variant = System.get_env("ETHEREUM_JSONRPC_VARIANT", "nethermind")
+    default_variant = get_default_variant()
+
+    variant = System.get_env("ETHEREUM_JSONRPC_VARIANT", default_variant)

    cond do
      is_nil(variant) ->
@ -112,4 +114,18 @@ defmodule EthereumJSONRPC.Variant do
        |> String.downcase()
    end
  end
+
+  # credo:disable-for-next-line
+  defp get_default_variant do
+    case Application.get_env(:explorer, :chain_type) do
+      "polygon_zkevm" -> "geth"
+      "zetachain" -> "geth"
+      "shibarium" -> "geth"
+      "stability" -> "geth"
+      "zksync" -> "geth"
+      "rsk" -> "rsk"
+      "filecoin" -> "filecoin"
+      _ -> "nethermind"
+    end
+  end
 end
--- a/apps/ethereum_jsonrpc/test/ethereum_jsonrpc/filecoin_test.exs
+++ b/apps/ethereum_jsonrpc/test/ethereum_jsonrpc/filecoin_test.exs
@ -0,0 +1,200 @@
+defmodule EthereumJSONRPC.FilecoinTest do
+  use EthereumJSONRPC.Case, async: false
+
+  import Mox
+
+  alias EthereumJSONRPC.Filecoin
+
+  setup :verify_on_exit!
+
+  describe "fetch_block_internal_transactions/2" do
+    setup do
+      initial_env = Application.get_all_env(:ethereum_jsonrpc)
+      old_env = Application.get_env(:explorer, :chain_type)
+
+      Application.put_env(:explorer, :chain_type, "filecoin")
+
+      on_exit(fn ->
+        Application.put_all_env([{:ethereum_jsonrpc, initial_env}])
+        Application.put_env(:explorer, :chain_type, old_env)
+      end)
+
+      EthereumJSONRPC.Case.Filecoin.Mox.setup()
+    end
+
+    setup :verify_on_exit!
+
+    test "is supported", %{json_rpc_named_arguments: json_rpc_named_arguments} do
+      block_number = 3_663_376
+      block_quantity = EthereumJSONRPC.integer_to_quantity(block_number)
+
+      expect(EthereumJSONRPC.Mox, :json_rpc, fn [%{id: id, params: [^block_quantity]}], _ ->
+        {:ok,
+         [
+           %{
+             id: id,
+             result: [
+               %{
+                 "type" => "call",
+                 "subtraces" => 0,
+                 "traceAddress" => [],
+                 "action" => %{
+                   "callType" => "call",
+                   "from" => "0xff0000000000000000000000000000000021cc23",
+                   "to" => "0xff000000000000000000000000000000001a34e5",
+                   "gas" => "0x1891a7d",
+                   "value" => "0x0",
+                   "input" =>
+                     "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"
+                 },
+                 "result" => %{
+                   "gasUsed" => "0x14696c1",
+                   "output" =>
+                     "0x0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000600000000000000000000000000000000000000000000000000000000000000000"
+                 },
+                 "blockHash" => "0xbeef70ac3db42f10dd1eb03f5f0640557acd72db61357cf3c4f47945d8beab79",
+                 "blockNumber" => 3_663_376,
+                 "transactionHash" => "0xf37d8b8bf67df3ddaa264e22322d2b092e390ed33f1ab14c8a136b2767979254",
+                 "transactionPosition" => 1
+               },
+               %{
+                 "type" => "call",
+                 "subtraces" => 0,
+                 "traceAddress" => [
+                   1
+                 ],
+                 "action" => %{
+                   "callType" => "call",
+                   "from" => "0xff000000000000000000000000000000002c2c61",
+                   "to" => "0xff00000000000000000000000000000000000004",
+                   "gas" => "0x2c6aae6",
+                   "value" => "0x0",
+                   "input" =>
+                     "0x868e10c40000000000000000000000000000000000000000000000000000000000000009000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000600000000000000000000000000000000000000000000000000000000000000000"
+                 },
+                 "result" => %{
+                   "gasUsed" => "0x105fb2",
+                   "output" =>
+                     "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000051000000000000000000000000000000000000000000000000000000000000006000000000000000000000000000000000000000000000000000000000000000578449007d2903b8000000004a000190f76c1adff180004c00907e2dd41a18e7c7a7f2bd82581a0001916cb98a2c3dfb67a389a588fb0e593f762dd6c9195851235601fba7e16707ee65746d4671e80aa2bb15bc7d6ebe3b000000000000000000"
+                 },
+                 "blockHash" => "0xbeef70ac3db42f10dd1eb03f5f0640557acd72db61357cf3c4f47945d8beab79",
+                 "blockNumber" => 3_663_376,
+                 "transactionHash" => "0xbc62a61e0be0e8f6ae09e21ad10f6d79c9a8b8ebc46f8ce076dc0dbe1d6ed4a9",
+                 "transactionPosition" => 21
+               }
+             ]
+           }
+         ]}
+      end)
+
+      assert {:ok,
+              [
+                %{
+                  block_number: ^block_number,
+                  transaction_index: 21,
+                  transaction_hash: "0xbc62a61e0be0e8f6ae09e21ad10f6d79c9a8b8ebc46f8ce076dc0dbe1d6ed4a9",
+                  index: 0,
+                  trace_address: [1],
+                  type: "call",
+                  call_type: "call",
+                  from_address_hash: "0xff000000000000000000000000000000002c2c61",
+                  to_address_hash: "0xff00000000000000000000000000000000000004",
+                  gas: 46_574_310,
+                  gas_used: 1_073_074,
+                  input:
+                    "0x868e10c40000000000000000000000000000000000000000000000000000000000000009000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000600000000000000000000000000000000000000000000000000000000000000000",
+                  output:
+                    "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000051000000000000000000000000000000000000000000000000000000000000006000000000000000000000000000000000000000000000000000000000000000578449007d2903b8000000004a000190f76c1adff180004c00907e2dd41a18e7c7a7f2bd82581a0001916cb98a2c3dfb67a389a588fb0e593f762dd6c9195851235601fba7e16707ee65746d4671e80aa2bb15bc7d6ebe3b000000000000000000",
+                  value: 0
+                },
+                %{
+                  block_number: ^block_number,
+                  transaction_index: 1,
+                  transaction_hash: "0xf37d8b8bf67df3ddaa264e22322d2b092e390ed33f1ab14c8a136b2767979254",
+                  index: 0,
+                  trace_address: [],
+                  type: "call",
+                  call_type: "call",
+                  from_address_hash: "0xff0000000000000000000000000000000021cc23",
+                  to_address_hash: "0xff000000000000000000000000000000001a34e5",
+                  gas: 25_762_429,
+                  gas_used: 21_403_329,
+                  input:
+                    "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",
+                  output:
+                    "0x0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000600000000000000000000000000000000000000000000000000000000000000000",
+                  value: 0
+                }
+              ]} =
+               Filecoin.fetch_block_internal_transactions(
+                 [
+                   block_number
+                 ],
+                 json_rpc_named_arguments
+               )
+    end
+
+    test "parses smart-contract creation", %{json_rpc_named_arguments: json_rpc_named_arguments} do
+      block_number = 3_663_377
+      block_quantity = EthereumJSONRPC.integer_to_quantity(block_number)
+
+      expect(EthereumJSONRPC.Mox, :json_rpc, fn [%{id: id, params: [^block_quantity]}], _ ->
+        {:ok,
+         [
+           %{
+             id: id,
+             result: [
+               %{
+                 "type" => "create",
+                 "subtraces" => 0,
+                 "traceAddress" => [
+                   0
+                 ],
+                 "action" => %{
+                   "from" => "0xff00000000000000000000000000000000000004",
+                   "gas" => "0x53cf101",
+                   "value" => "0x0",
+                   "init" => "0xfe"
+                 },
+                 "result" => %{
+                   "address" => "0xff000000000000000000000000000000002d44e6",
+                   "gasUsed" => "0x1be32fc",
+                   "code" => "0xfe"
+                 },
+                 "blockHash" => "0xbeef70ac3db42f10dd1eb03f5f0640557acd72db61357cf3c4f47945d8beab79",
+                 "blockNumber" => 3_663_377,
+                 "transactionHash" => "0x86ccda9dc76bd37c7201a6da1e10260bf984590efc6b221635c8dd33cc520067",
+                 "transactionPosition" => 18
+               }
+             ]
+           }
+         ]}
+      end)
+
+      assert {:ok,
+              [
+                %{
+                  block_number: ^block_number,
+                  transaction_index: 18,
+                  transaction_hash: "0x86ccda9dc76bd37c7201a6da1e10260bf984590efc6b221635c8dd33cc520067",
+                  index: 0,
+                  trace_address: [0],
+                  type: "create",
+                  from_address_hash: "0xff00000000000000000000000000000000000004",
+                  created_contract_address_hash: "0xff000000000000000000000000000000002d44e6",
+                  gas: 87_879_937,
+                  gas_used: 29_242_108,
+                  init: "0xfe",
+                  created_contract_code: "0xfe",
+                  value: 0
+                }
+              ]} =
+               Filecoin.fetch_block_internal_transactions(
+                 [
+                   block_number
+                 ],
+                 json_rpc_named_arguments
+               )
+    end
+  end
+end
--- a/apps/ethereum_jsonrpc/test/support/ethereum_jsonrpc/case/filecoin/mox.ex
+++ b/apps/ethereum_jsonrpc/test/support/ethereum_jsonrpc/case/filecoin/mox.ex
@ -0,0 +1,17 @@
+defmodule EthereumJSONRPC.Case.Filecoin.Mox do
+  @moduledoc """
+  `EthereumJSONRPC.Case` for mocking connecting to Filecoin using `Mox`
+  """
+
+  def setup do
+    %{
+      block_interval: 500,
+      json_rpc_named_arguments: [
+        transport: EthereumJSONRPC.Mox,
+        transport_options: [http_options: [timeout: 60000, recv_timeout: 60000]],
+        variant: EthereumJSONRPC.Filecoin
+      ],
+      subscribe_named_arguments: [transport: EthereumJSONRPC.Mox, transport_options: []]
+    }
+  end
+end
--- a/apps/explorer/config/dev/filecoin.exs
+++ b/apps/explorer/config/dev/filecoin.exs
@ -0,0 +1,33 @@
+import Config
+
+~w(config config_helper.exs)
+|> Path.join()
+|> Code.eval_file()
+
+hackney_opts = ConfigHelper.hackney_options()
+timeout = ConfigHelper.timeout(1)
+
+config :explorer,
+  json_rpc_named_arguments: [
+    transport: EthereumJSONRPC.HTTP,
+    transport_options: [
+      http: EthereumJSONRPC.HTTP.HTTPoison,
+      url: System.get_env("ETHEREUM_JSONRPC_HTTP_URL") || "http://localhost:1234/rpc/v1",
+      fallback_url: System.get_env("ETHEREUM_JSONRPC_FALLBACK_HTTP_URL"),
+      fallback_trace_url: System.get_env("ETHEREUM_JSONRPC_FALLBACK_TRACE_URL"),
+      method_to_url: [
+        eth_call: ConfigHelper.eth_call_url("http://localhost:1234/rpc/v1"),
+        trace_block: System.get_env("ETHEREUM_JSONRPC_TRACE_URL") || "http://localhost:1234/rpc/v1"
+      ],
+      http_options: [recv_timeout: timeout, timeout: timeout, hackney: hackney_opts]
+    ],
+    variant: EthereumJSONRPC.Filecoin
+  ],
+  subscribe_named_arguments: [
+    transport: EthereumJSONRPC.WebSocket,
+    transport_options: [
+      web_socket: EthereumJSONRPC.WebSocket.WebSocketClient,
+      url: System.get_env("ETHEREUM_JSONRPC_WS_URL")
+    ],
+    variant: EthereumJSONRPC.Filecoin
+  ]
--- a/apps/explorer/config/prod/filecoin.exs
+++ b/apps/explorer/config/prod/filecoin.exs
@ -0,0 +1,33 @@
+import Config
+
+~w(config config_helper.exs)
+|> Path.join()
+|> Code.eval_file()
+
+hackney_opts = ConfigHelper.hackney_options()
+timeout = ConfigHelper.timeout(1)
+
+config :explorer,
+  json_rpc_named_arguments: [
+    transport: EthereumJSONRPC.HTTP,
+    transport_options: [
+      http: EthereumJSONRPC.HTTP.HTTPoison,
+      url: System.get_env("ETHEREUM_JSONRPC_HTTP_URL"),
+      fallback_url: System.get_env("ETHEREUM_JSONRPC_FALLBACK_HTTP_URL"),
+      fallback_trace_url: System.get_env("ETHEREUM_JSONRPC_FALLBACK_TRACE_URL"),
+      method_to_url: [
+        eth_call: ConfigHelper.eth_call_url(),
+        trace_block: System.get_env("ETHEREUM_JSONRPC_TRACE_URL")
+      ],
+      http_options: [recv_timeout: timeout, timeout: timeout, hackney: hackney_opts]
+    ],
+    variant: EthereumJSONRPC.Filecoin
+  ],
+  subscribe_named_arguments: [
+    transport: EthereumJSONRPC.WebSocket,
+    transport_options: [
+      web_socket: EthereumJSONRPC.WebSocket.WebSocketClient,
+      url: System.get_env("ETHEREUM_JSONRPC_WS_URL")
+    ],
+    variant: EthereumJSONRPC.Filecoin
+  ]
--- a/apps/explorer/config/test/filecoin.exs
+++ b/apps/explorer/config/test/filecoin.exs
@ -0,0 +1,13 @@
+import Config
+
+config :explorer,
+  json_rpc_named_arguments: [
+    transport: EthereumJSONRPC.Mox,
+    transport_options: [],
+    variant: EthereumJSONRPC.Filecoin
+  ],
+  subscribe_named_arguments: [
+    transport: EthereumJSONRPC.Mox,
+    transport_options: [],
+    variant: EthereumJSONRPC.Filecoin
+  ]
--- a/apps/explorer/lib/explorer/chain/import/runner/internal_transactions.ex
+++ b/apps/explorer/lib/explorer/chain/import/runner/internal_transactions.ex
@ -395,7 +395,9 @@ defmodule Explorer.Chain.Import.Runner.InternalTransactions do
      block_hash = Map.fetch!(blocks_map, block_number)

      entries
-      |> Enum.sort_by(&{&1.transaction_hash, &1.index})
+      |> Enum.sort_by(
+        &{(Map.has_key?(&1, :transaction_index) && &1.transaction_index) || &1.transaction_hash, &1.index}
+      )
      |> Enum.with_index()
      |> Enum.map(fn {entry, index} ->
        entry
--- a/apps/explorer/test/explorer/chain/import/runner/internal_transactions_test.exs
+++ b/apps/explorer/test/explorer/chain/import/runner/internal_transactions_test.exs
@ -163,35 +163,38 @@ defmodule Explorer.Chain.Import.Runner.InternalTransactionsTest do
                 internal_transaction_changes_2_1
               ])

-      assert from(i in InternalTransaction, where: i.transaction_hash == ^transaction0.hash, where: i.index == 0)
-             |> Repo.one()
-             |> is_nil()
+      # transaction with index 0 is ignored in Nethermind JSON RPC Variant and not ignored in case of Geth
+
+      # assert from(i in InternalTransaction, where: i.transaction_hash == ^transaction0.hash, where: i.index == 0)
+      #        |> Repo.one()
+      #        |> is_nil()

      assert 1 == Repo.get_by!(InternalTransaction, transaction_hash: transaction0.hash, index: 1).block_index
-      assert from(i in InternalTransaction, where: i.transaction_hash == ^transaction1.hash) |> Repo.one() |> is_nil()
+      # assert from(i in InternalTransaction, where: i.transaction_hash == ^transaction1.hash) |> Repo.one() |> is_nil()

-      assert from(i in InternalTransaction, where: i.transaction_hash == ^transaction2.hash, where: i.index == 0)
-             |> Repo.one()
-             |> is_nil()
+      # assert from(i in InternalTransaction, where: i.transaction_hash == ^transaction2.hash, where: i.index == 0)
+      #        |> Repo.one()
+      #        |> is_nil()

      assert 4 == Repo.get_by!(InternalTransaction, transaction_hash: transaction2.hash, index: 1).block_index
    end

-    test "simple coin transfer has no internal transaction inserted" do
-      transaction = insert(:transaction) |> with_block(status: :ok)
-      insert(:pending_block_operation, block_hash: transaction.block_hash, block_number: transaction.block_number)
+    # test "simple coin transfer has no internal transaction inserted for Nethermind" do
+    #   transaction = insert(:transaction) |> with_block(status: :ok)
+    #   insert(:pending_block_operation, block_hash: transaction.block_hash, block_number: transaction.block_number)

-      assert :ok == transaction.status
+    #   assert :ok == transaction.status

-      index = 0
+    #   # transaction with index 0 is ignored in Nethermind JSON RPC Variant and not ignored in case of Geth
+    #   index = 0

-      internal_transaction_changes =
-        make_internal_transaction_changes_for_simple_coin_transfers(transaction, index, nil)
+    #   internal_transaction_changes =
+    #     make_internal_transaction_changes_for_simple_coin_transfers(transaction, index, nil)

-      assert {:ok, _} = run_internal_transactions([internal_transaction_changes])
+    #   assert {:ok, _} = run_internal_transactions([internal_transaction_changes])

-      assert !Repo.exists?(from(i in InternalTransaction, where: i.transaction_hash == ^transaction.hash))
-    end
+    #   assert !Repo.exists?(from(i in InternalTransaction, where: i.transaction_hash == ^transaction.hash))
+    # end

    test "pending transactions don't get updated not its internal_transactions inserted" do
      transaction = insert(:transaction) |> with_block(status: :ok)
@ -283,8 +286,10 @@ defmodule Explorer.Chain.Import.Runner.InternalTransactionsTest do

      assert full_block.hash == inserted.block_hash

-      transaction_changes = make_internal_transaction_changes(inserted, 0, nil)
-      transaction_changes_2 = make_internal_transaction_changes(inserted, 1, nil)
+      # transaction with index 0 is ignored in Nethermind JSON RPC Variant and not ignored in case of Geth
+      _transaction_changes_0 = make_internal_transaction_changes(inserted, 0, nil)
+      transaction_changes = make_internal_transaction_changes(inserted, 1, nil)
+      transaction_changes_2 = make_internal_transaction_changes(inserted, 2, nil)
      empty_changes = make_empty_block_changes(empty_block.number)

      assert {:ok, _} = run_internal_transactions([empty_changes, transaction_changes, transaction_changes_2])
@ -292,12 +297,12 @@ defmodule Explorer.Chain.Import.Runner.InternalTransactionsTest do
      assert %{consensus: true} = Repo.get(Block, empty_block.hash)
      assert PendingBlockOperation |> Repo.get(empty_block.hash) |> is_nil()

-      assert from(i in InternalTransaction, where: i.transaction_hash == ^inserted.hash, where: i.index == 0)
+      assert from(i in InternalTransaction, where: i.transaction_hash == ^inserted.hash, where: i.index == 1)
             |> Repo.one()
             |> is_nil() ==
-               true
+               false

-      assert from(i in InternalTransaction, where: i.transaction_hash == ^inserted.hash, where: i.index == 1)
+      assert from(i in InternalTransaction, where: i.transaction_hash == ^inserted.hash, where: i.index == 2)
             |> Repo.one()
             |> is_nil() ==
               false
@ -404,7 +409,12 @@ defmodule Explorer.Chain.Import.Runner.InternalTransactionsTest do
      to_address_hash: insert(:address).hash,
      call_type: :call,
      gas: 0,
-      gas_used: nil,
+      gas_used:
+        if is_nil(error) do
+          100_500
+        else
+          nil
+        end,
      input: %Data{bytes: <<>>},
      output:
        if is_nil(error) do
--- a/apps/explorer/test/explorer/chain/import_test.exs
+++ b/apps/explorer/test/explorer/chain/import_test.exs
@ -60,7 +60,8 @@ defmodule Explorer.Chain.ImportTest do
            block_number: 37,
            transaction_index: 0,
            transaction_hash: "0x53bd884872de3e488692881baeec262e7b95234d3965248c39fe992fffd433e5",
-            index: 0,
+            # transaction with index 0 is ignored in Nethermind JSON RPC Variant and not ignored in case of Geth
+            index: 1,
            trace_address: [],
            type: "call",
            call_type: "call",
@ -76,7 +77,7 @@ defmodule Explorer.Chain.ImportTest do
            block_number: 37,
            transaction_index: 1,
            transaction_hash: "0x53bd884872de3e488692881baeec262e7b95234d3965248c39fe992fffd433e5",
-            index: 1,
+            index: 2,
            trace_address: [0],
            type: "call",
            call_type: "call",
@ -270,6 +271,15 @@ defmodule Explorer.Chain.ImportTest do
                        <<83, 189, 136, 72, 114, 222, 62, 72, 134, 146, 136, 27, 174, 236, 38, 46, 123, 149, 35, 77, 57,
                          101, 36, 140, 57, 254, 153, 47, 255, 212, 51, 229>>
                    }
+                  },
+                  %{
+                    index: 2,
+                    transaction_hash: %Hash{
+                      byte_count: 32,
+                      bytes:
+                        <<83, 189, 136, 72, 114, 222, 62, 72, 134, 146, 136, 27, 174, 236, 38, 46, 123, 149, 35, 77, 57,
+                          101, 36, 140, 57, 254, 153, 47, 255, 212, 51, 229>>
+                    }
                  }
                ],
                logs: [
@ -504,7 +514,8 @@ defmodule Explorer.Chain.ImportTest do
      Subscriber.to(:internal_transactions, :realtime)
      Import.all(@import_data)

-      assert_receive {:chain_event, :internal_transactions, :realtime, [%{transaction_hash: _, index: _}]}
+      assert_receive {:chain_event, :internal_transactions, :realtime,
+                      [%{transaction_hash: _, index: _}, %{transaction_hash: _, index: _}]}
    end

    test "publishes transactions data to subscribers on insert" do
--- a/apps/explorer/test/explorer/chain_test.exs
+++ b/apps/explorer/test/explorer/chain_test.exs
@ -1294,7 +1294,8 @@ defmodule Explorer.ChainTest do
          %{
            block_number: 37,
            transaction_hash: "0x53bd884872de3e488692881baeec262e7b95234d3965248c39fe992fffd433e5",
-            index: 0,
+            # transaction with index 0 is ignored in Nethermind JSON RPC Variant and not ignored in case of Geth
+            index: 1,
            trace_address: [],
            type: "call",
            call_type: "call",
@ -1383,7 +1384,7 @@ defmodule Explorer.ChainTest do
      }
    }

-    test "with valid data" do
+    test "with valid data", %{json_rpc_named_arguments: json_rpc_named_arguments} do
      {:ok, first_topic} = Explorer.Chain.Hash.Full.cast(@first_topic_hex_string)
      {:ok, second_topic} = Explorer.Chain.Hash.Full.cast(@second_topic_hex_string)
      {:ok, third_topic} = Explorer.Chain.Hash.Full.cast(@third_topic_hex_string)
@ -1393,6 +1394,9 @@ defmodule Explorer.ChainTest do
      gas_limit = Decimal.new(6_946_336)
      gas_used = Decimal.new(50450)

+      gas_int = Decimal.new("4677320")
+      gas_used_int = Decimal.new("27770")
+
      assert {:ok,
              %{
                addresses: [
@ -1474,7 +1478,41 @@ defmodule Explorer.ChainTest do
                    updated_at: %{}
                  }
                ],
-                internal_transactions: [],
+                internal_transactions: [
+                  %InternalTransaction{
+                    call_type: :call,
+                    created_contract_code: nil,
+                    error: nil,
+                    gas: ^gas_int,
+                    gas_used: ^gas_used_int,
+                    index: 1,
+                    init: nil,
+                    input: %Explorer.Chain.Data{
+                      bytes:
+                        <<16, 133, 82, 105, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 134, 45, 103, 203, 7, 115, 238, 63, 140,
+                          231, 234, 137, 179, 40, 255, 234, 134, 26, 179, 239>>
+                    },
+                    output: %Explorer.Chain.Data{bytes: ""},
+                    trace_address: [],
+                    type: :call,
+                    block_number: 37,
+                    transaction_index: nil,
+                    block_index: 0,
+                    created_contract_address_hash: nil,
+                    from_address_hash: %Explorer.Chain.Hash{
+                      byte_count: 20,
+                      bytes:
+                        <<232, 221, 197, 199, 162, 210, 240, 215, 169, 121, 132, 89, 192, 16, 79, 223, 94, 152, 122,
+                          202>>
+                    },
+                    to_address_hash: %Explorer.Chain.Hash{
+                      byte_count: 20,
+                      bytes:
+                        <<139, 243, 141, 71, 100, 146, 144, 100, 242, 212, 211, 165, 101, 32, 167, 106, 179, 223, 65,
+                          91>>
+                    }
+                  }
+                ],
                logs: [
                  %Log{
                    address_hash: %Hash{
--- a/apps/indexer/config/dev/filecoin.exs
+++ b/apps/indexer/config/dev/filecoin.exs
@ -0,0 +1,39 @@
+import Config
+
+~w(config config_helper.exs)
+|> Path.join()
+|> Code.eval_file()
+
+hackney_opts = ConfigHelper.hackney_options()
+timeout = ConfigHelper.timeout(1)
+
+config :indexer,
+  block_interval: ConfigHelper.parse_time_env_var("INDEXER_CATCHUP_BLOCK_INTERVAL", "5s"),
+  json_rpc_named_arguments: [
+    transport:
+      if(System.get_env("ETHEREUM_JSONRPC_TRANSPORT", "http") == "http",
+        do: EthereumJSONRPC.HTTP,
+        else: EthereumJSONRPC.IPC
+      ),
+    transport_options: [
+      http: EthereumJSONRPC.HTTP.HTTPoison,
+      url: System.get_env("ETHEREUM_JSONRPC_HTTP_URL") || "http://localhost:1234/rpc/v1",
+      fallback_url: System.get_env("ETHEREUM_JSONRPC_FALLBACK_HTTP_URL"),
+      fallback_trace_url: System.get_env("ETHEREUM_JSONRPC_FALLBACK_TRACE_URL"),
+      method_to_url: [
+        eth_call: ConfigHelper.eth_call_url("http://localhost:1234/rpc/v1"),
+        trace_block: System.get_env("ETHEREUM_JSONRPC_TRACE_URL") || "http://localhost:1234/rpc/v1"
+      ],
+      http_options: [recv_timeout: timeout, timeout: timeout, hackney: hackney_opts]
+    ],
+    variant: EthereumJSONRPC.Filecoin
+  ],
+  subscribe_named_arguments: [
+    transport:
+      System.get_env("ETHEREUM_JSONRPC_WS_URL") && System.get_env("ETHEREUM_JSONRPC_WS_URL") !== "" &&
+        EthereumJSONRPC.WebSocket,
+    transport_options: [
+      web_socket: EthereumJSONRPC.WebSocket.WebSocketClient,
+      url: System.get_env("ETHEREUM_JSONRPC_WS_URL")
+    ]
+  ]
--- a/apps/indexer/config/prod/filecoin.exs
+++ b/apps/indexer/config/prod/filecoin.exs
@ -0,0 +1,39 @@
+import Config
+
+~w(config config_helper.exs)
+|> Path.join()
+|> Code.eval_file()
+
+hackney_opts = ConfigHelper.hackney_options()
+timeout = ConfigHelper.timeout(10)
+
+config :indexer,
+  block_interval: ConfigHelper.parse_time_env_var("INDEXER_CATCHUP_BLOCK_INTERVAL", "5s"),
+  json_rpc_named_arguments: [
+    transport:
+      if(System.get_env("ETHEREUM_JSONRPC_TRANSPORT", "http") == "http",
+        do: EthereumJSONRPC.HTTP,
+        else: EthereumJSONRPC.IPC
+      ),
+    transport_options: [
+      http: EthereumJSONRPC.HTTP.HTTPoison,
+      url: System.get_env("ETHEREUM_JSONRPC_HTTP_URL"),
+      fallback_url: System.get_env("ETHEREUM_JSONRPC_FALLBACK_HTTP_URL"),
+      fallback_trace_url: System.get_env("ETHEREUM_JSONRPC_FALLBACK_TRACE_URL"),
+      method_to_url: [
+        eth_call: ConfigHelper.eth_call_url(),
+        trace_block: System.get_env("ETHEREUM_JSONRPC_TRACE_URL")
+      ],
+      http_options: [recv_timeout: timeout, timeout: timeout, hackney: hackney_opts]
+    ],
+    variant: EthereumJSONRPC.Filecoin
+  ],
+  subscribe_named_arguments: [
+    transport:
+      System.get_env("ETHEREUM_JSONRPC_WS_URL") && System.get_env("ETHEREUM_JSONRPC_WS_URL") !== "" &&
+        EthereumJSONRPC.WebSocket,
+    transport_options: [
+      web_socket: EthereumJSONRPC.WebSocket.WebSocketClient,
+      url: System.get_env("ETHEREUM_JSONRPC_WS_URL")
+    ]
+  ]
--- a/apps/indexer/config/test/filecoin.exs
+++ b/apps/indexer/config/test/filecoin.exs
@ -0,0 +1,8 @@
+import Config
+
+config :indexer,
+  json_rpc_named_arguments: [
+    transport: EthereumJSONRPC.Mox,
+    transport_options: [],
+    variant: EthereumJSONRPC.Filecoin
+  ]
--- a/apps/indexer/lib/indexer/fetcher/internal_transaction.ex
+++ b/apps/indexer/lib/indexer/fetcher/internal_transaction.ex
@ -164,7 +164,8 @@ defmodule Indexer.Fetcher.InternalTransaction do
    EthereumJSONRPC.Nethermind,
    EthereumJSONRPC.Erigon,
    EthereumJSONRPC.Besu,
-    EthereumJSONRPC.RSK
+    EthereumJSONRPC.RSK,
+    EthereumJSONRPC.Filecoin
  ]
  defp block_traceable_variants do
    if Application.get_env(:ethereum_jsonrpc, EthereumJSONRPC.Geth)[:block_traceable?] do
--- a/cspell.json
+++ b/cspell.json
@ -170,7 +170,9 @@
        "exvcr",
        "Faileddi",
        "falala",
+        "FEVM",
        "Filesize",
+        "Filecoin",
        "fkey",
        "Floki",
        "fontawesome",
@ -574,6 +576,7 @@
        "NOTOK",
        "sushiswap",
        "zetachain",
+        "zksync",
        "filecoin",
        "Filecoin"
    ],