trace_block - Ethereum

trace_block. Returns traces created at given block

trace_block - ethereum [Value: 90CU]
Returns traces created at given block.
Use cases

Use cases

  • Analyze internal transactions for the latest block
  • Trace smart contract executions in the newest block
  • Investigate transaction behavior within the most recent block
Constraints

Constraints

  • Requires access to the latest block data
  • Node must support the trace_block method
  • AHigh computational cost for tracing recent blocks
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Language

Request
Examples
curl --request POST \
     --url https://eth.drpc.org \
     --header 'accept: application/json' \
     --header 'content-type: application/json' \
     --data '
{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "trace_block",
  "params": [
    "latest"
  ]
}
'
Copy
Response
200
{
  "jsonrpc": "2.0",
  "result": [
    {
      "action": {
        "callType": "call",
        "from": "0xaa7b131dc60b80d3cf5e59b5a21a666aa039c951",
        "gas": "0x0",
        "input": "0x",
        "to": "0xd40aba8166a212d6892125f079c33e6f5ca19814",
        "value": "0x4768d7effc3fbe"
      },
      "blockHash": "0x7eb25504e4c202cf3d62fd585d3e238f592c780cca82dacb2ed3cb5b38883add",
      "blockNumber": 3068185,
      "result": {
        "gasUsed": "0x0",
        "output": "0x"
      },
      "subtraces": 0,
      "traceAddress": [],
      "transactionHash": "0x07da28d752aba3b9dd7060005e554719c6205c8a3aea358599fc9b245c52f1f6",
      "transactionPosition": 0,
      "type": "call"
    },
    {
      "action": {
        "callType": "call",
        "from": "0x4f11ba23bb526c0486d83c6a8f18f632f3fc172a",
        "gas": "0x0",
        "input": "0x",
        "to": "0x7ed1e469fcb3ee19c0366d829e291451be638e59",
        "value": "0x446cde325fbfbe"
      },
      "blockHash": "0x7eb25504e4c202cf3d62fd585d3e238f592c780cca82dacb2ed3cb5b38883add",
      "blockNumber": 3068185,
      "result": {
        "gasUsed": "0x0",
        "output": "0x"
      },
      "subtraces": 0,
      "traceAddress": [],
      "transactionHash": "0x056f11efb5da4ff7cf8523cfcef08393e5dd2ff3ab3223e4324426d285d7ae92",
      "transactionPosition": 1,
      "type": "call"
    },
    {
      "...": null
    }
  ],
  "id": 0
}
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Request params

idinteger
jsonrpcstring
methodstring
Parametersarray of strings
array of strings
blockNumberarray_of_strings
The block number or block hash to search up to
  • latest [default] - the blockchain's most recent block
  • earliest - the first or genesis block
  • pending - transactions broadcasted but not yet included in a block

Response

200
Returns the array of Block 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.