trace_call
Traces the execution of eth_call and provides detailed information about each step of the execution. This is similar to debug_traceCall.
Parameters
Object
- The transaction call object with the following:from
(optional): the address the transaction is sent from.to
(optional): the address the transaction is sent to.gas
(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
(optional): Integer of the gasPrice used for each paid gas.value
(optional): Integer of the value sent with this transaction.data
(optional): Hash of the method signature and encoded parameters. For details see Ethereum Contract ABI in the Solidity documentation.
Quantity
ortag
- choose 1 of the following options:A hexadecimal block number.
"earliest"
- the earliest/genesis block."latest"
- the latest mined block."safe"
- the latest safe head block."finalized"
- the latest finalized block."pending"
- the pending state/transactions.
Type
of trace - choose 1 of the following options:"trace"
- Provides an ordered trace of the instructions."stateDiff"
- Provides information detailing all altered portions of the Ethereum state made due to the execution of the transaction."vmTrace"
- Provides a full trace of the VM’s state throughout the execution of the transaction, including for any subcalls.
Sample Request
curl https://lb.nodies.app/v1/<INSERT URL> \
-H "x-api-key: <API-KEY>" \
-X POST \
-H "Content-Type: application/json" \
-d '{
"jsonrpc": "2.0",
"method": "trace_call",
"params": [
{
"from": "0xfe3b557e8fb62b89f4916b721be55ceb828dbd73",
"to": "0x0010000000000000000000000000000000000000"
},
["trace"],
"latest"
],
"id": 1
}'
Sample Response
{
"jsonrpc": "2.0",
"id": 1,
"result": {
"output": "0x",
"stateDiff": null,
"trace": [
{
"action": {
"from": "0xfe3b557e8fb62b89f4916b721be55ceb828dbd73",
"callType": "call",
"gas": "0x2fa9e78",
"input": "0x",
"to": "0x0010000000000000000000000000000000000000",
"value": "0x0"
},
"result": {
"gasUsed": "0x0",
"output": "0x"
},
"subtraces": 0,
"traceAddress": [],
"type": "call"
}
],
"vmTrace": null
}
}
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