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trace_call

Executes the given call and returns a number of possible traces for it.

Parameters:

​
Object - The transaction call object
  • from: DATA, 20 Bytes - (optional) The address the transaction is sent from.
  • to: DATA, 20 Bytes - The address the transaction is directed to.
  • gas: QUANTITY - (optional) Integer of the gas provided for the transaction execution. eth_call consumes zero gas, but this parameter may be needed by some executions.
  • gasPrice: QUANTITY - (optional) Integer of the gasPrice used for each paid gas
  • value: QUANTITY - (optional) Integer of the value sent with this transaction
  • data: DATA - (optional) Hash of the method signature and encoded parameters. For details see Ethereum Contract ABI in the Solidity documentation
  • QUANTITY|TAG - integer block number, or the string "latest", see the default block parameter

Returns:

Array - Block traces

Example:

// Request
curl https://ethereum.blockpi.network/v1/rpc/your-rpc-key -X POST -H "Content-Type: application/json" -d '{"method":"trace_call","params":[{"from": "0x6f1FB6EFDf50F34bFA3F2bC0E5576EdD71631638","to": "0x1E0447b19BB6EcFdAe1e4AE1694b0C3659614e4e","value": "0x0","data": "0xa67a6a45000000000000000000000000000000000000000000000000000000000000004000000000000000000000000000"},["trace"]],"id":1,"jsonrpc":"2.0"}'
​
// Result
{
"jsonrpc":"2.0",
"id":1,
"result":{
"output":"0x",
"stateDiff":null,
"trace":[{
"action":{
"from":"0x6f1fb6efdf50f34bfa3f2bc0e5576edd71631638",
"callType":"call",
"gas":"0x2fa9d78",
"input":"0xa67a6a45000000000000000000000000000000000000000000000000000000000000004000000000000000000000000000",
"to":"0x1e0447b19bb6ecfdae1e4ae1694b0c3659614e4e",
"value":"0x0"
},
"error":"Reverted",
"result":{
"gasUsed":"0x12f",
"output":"0x"
},
"subtraces":0,
"traceAddress":[],
"type":"call"
}],
"vmTrace":null
}
}
Last modified 10mo ago