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debug_traceTransaction

debug_traceTransaction is a JSON RPC method that returns tracing results for the specified transaction. In this section, we are looking for a way to build an alternative for the same using Bitquery API.

Debug Trace Transaction

To trace a transaction using the debug_traceTransaction we need the transaction hash. We are using this API given below for tracing the transaction, with transaction hash as 0x4fe59dcf4f834f17acdcd0f244538c119523009ce47817ccd56423404ba34ffa.


query MyQuery {
  EVM {
    Calls(
      where: {
        Transaction: {
          Hash: {
            is: "0x4fe59dcf4f834f17acdcd0f244538c119523009ce47817ccd56423404ba34ffa"
          }
        }
      }
    ) {
      Call {
        From
        Gas
        GasUsed
        Input
        Output
        To
        Value
        InternalCalls
        Error
        Create
      }
    }
  }
}

Response Recieved​

The response from running the above API is given below, and returns.

  • Create - (boolean) If the transaction is a smart contract creation or not.
  • From - The address from which the transaction originated.
  • To - The address to which the transaction is sent.
  • Gas - Gas provided for the transaction in WEI.
  • GasUsed - Gas used in the transaction in WEI.
  • Input - Call Data.
  • Output - Data Returned.
  • Value - Amount of value transfer.
  • Error - Error string (if any), otherwise an empty string.
  • InternalCalls - Number of sub-calls.
{
  "EVM": {
    "Calls": [
      {
        "Call": {
          "Create": false,
          "Error": "",
          "From": "0xd2241065700f763d0390725d00bfd3fbef0b525e",
          "Gas": "120748",
          "GasUsed": "87170",
          "Input": "0x42842e0e000000000000000000000000d2241065700f763d0390725d00bfd3fbef0b525e000000000000000000000000ad6df549cc5c3427fe2c54207620e3555c4350aa000000000000000000000000000000000000000000000000000000000000057e",
          "InternalCalls": 0,
          "Output": "0x",
          "To": "0xbb3f21dd9b16741e9822392f753d07da4c6b6cd6",
          "Value": "0.000000000000000000"
        }
      }
    ]
  }
}