trace_replayTransaction - Ethereum

trace_replayTransaction. Traces a call to eth_sendRawTransaction without making the call, returning the traces

trace_replayBlockTransactions - ethereum [Value: 90CU]
Traces a call to eth_sendRawTransaction without making the call, returning the traces.
Use cases

Use cases

  • Replay specific transaction to debug execution details
  • Analyze transaction trace to optimize gas usage
  • Investigate internal contract calls in a transaction
Constraints

Constraints

  • Requires valid transaction hash as parameter
  • Node must support trace_replayTransaction method
  • Detailed trace can result in large data output
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Language

Request
Examples
curl https://eth.drpc.org \
-X POST \
-H "Content-Type: application/json" \
-d '{"method":"trace_replayTransaction","params":["0x02d4a872e096445e80d05276ee756cefef7f3b376bcec14246469c0cd97dad8f",["trace"]],"id":1,"jsonrpc":"2.0"}'
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Response
200
{
  "jsonrpc": "2.0",
  "result": {
    "output": "0x",
    "stateDiff": null,
    "trace": [
      {
        "action": {
          "callType": "call",
          "from": "0x6f1fb6efdf50f34bfa3f2bc0e5576edd71631638",
          "gas": "0x1dcd11f8",
          "input": "0xa67a6a45000000000000000000000000000000000000000000000000000000000000004000000000000000000000000000",
          "to": "0x1e0447b19bb6ecfdae1e4ae1694b0c3659614e4e",
          "value": "0x0"
        },
        "error": "Reverted",
        "subtraces": 0,
        "traceAddress": [],
        "type": "call"
      }
    ],
    "vmTrace": null
  },
  "id": 0
}
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Request params

idinteger
jsonrpcstring
methodstring
Parametersarray
array
transactionHashstring
traceTypestring
Type of trace, one or more of: "trace", "stateDiff".

Response

200
Returning the traces.

Response params

object
idinteger
jsonrpcstring
resultobject
object
actionobject
object
callTypestring
The type of call.
fromstring
The address of the sender.
tostring
The address of the receiver.
valuestring
The value transferred in wei.
gasstring
The gas provided for the call.
inputstring
The data sent along with the call.
blockHashstring
The hash of the block where the trace occurred.
blockNumberstring
The number of the block where the trace occurred.
resultstring
object
gasUsedstring
The amount of gas used by the trace.
outputstring
The output of the call.
subtracesinteger
The number of subtraces created by this trace.
traceAddressarray_of_strings
The trace address indicating the position of this trace in the call stack.
transactionHashstring
The hash of the transaction to which this trace belongs.
transactionPositionstring
The position of the transaction in the block.
typestring
The type of trace.