trace_get

Returns a single trace of a transaction, selected by its position in the transaction's trace tree.

This method will use 80 Compute Units.

---

Parameters

hash - String - Required - The hash of a transaction

indices - Array - Required - A single hexadecimal index into the flat list that trace_transaction returns for the same transaction. ["0x0"] returns the top-level call (traceAddress: []), ["0x1"] returns the next trace in that list, which is the first sub-call (traceAddress: [0]), and so on. Arc runs reth, which returns null for selectors with more than one element.

Returns

object - The selected trace, which has the following fields (all return types are hexadecimal unless otherwise noted):

• action - object - The ParityTrace action object containing call details

  • from - string - The address of the sender

  • callType - string - The type of method such as call, staticcall, delegatecall

  • gas - string - The gas provided by the sender, encoded as hexadecimal

  • input - string - The input data sent along with the transaction

  • to - string - The address of the receiver

  • value - string - The integer of the value sent with this transaction, encoded as hexadecimal

• blockHash - string - The hash of the block where this transaction was included

• blockNumber - integer - The block number where this transaction was in

• result - object - The result of the trace execution

  • gasUsed - string - The amount of gas used by this specific trace

  • output - string - The return value of the contract call, empty if no RETURN executed

• subtraces - integer - The number of subtraces (internal calls) made by this trace

• traceAddress - array - The list of addresses where the call executed, including parent addresses and call order

• transactionHash - string - The hash of the transaction

• transactionPosition - integer - The transaction index position within the block

• type - string - The type of the trace, such as call or create

// Result
{
  "jsonrpc": "2.0",
  "id": 1,
  "result": {
    "action": {
      "from": "0x29c7dbf15e5d385f936076736a0005433efaabf6",
      "callType": "call",
      "gas": "0x50178",
      "input": "0x095ea7b3000000000000000000000000af3e2d2ac9ff1c451c1d4bce1dd4b130ab4327dbffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff",
      "to": "0xb329284a02508a4d09bedfdcedd4fc4ec55f3701",
      "value": "0x0"
    },
    "blockHash": "0x99457683cc3daf91edd01d11af09f1392f8dda3967c597379ca0b5787b5a3434",
    "blockNumber": 21150986,
    "result": {
      "gasUsed": "0x5efd",
      "output": "0x0000000000000000000000000000000000000000000000000000000000000001"
    },
    "subtraces": 0,
    "traceAddress": [],
    "transactionHash": "0xf89e2d15ad2932b3884f1564e478dbc9620f12b01542a594c026d946fba3984e",
    "transactionPosition": 0,
    "type": "call"
  }
}

mainnet

curl https://mainnet.arc.validationcloud.io/v1/<YOUR_API_KEY_HERE> \
    -X POST \
    -H "Content-Type: application/json" \
    -d '{"jsonrpc":"2.0","method":"trace_get","params":["0xf89e2d15ad2932b3884f1564e478dbc9620f12b01542a594c026d946fba3984e",["0x0"]],"id":1}'

testnet

curl https://testnet.arc.validationcloud.io/v1/<YOUR_API_KEY_HERE> \
    -X POST \
    -H "Content-Type: application/json" \
    -d '{"jsonrpc":"2.0","method":"trace_get","params":["0xc2204a951f028f475aae6a3c26b0872b01c41ec6d3549187fd14ef4dc040b40a",["0x0"]],"id":1}'