debug_traceCall

Returns the number of possible tracing results by executing an eth call within the context of the given block execution.

This method will use 40 Compute Units.

---

Parameters

object - Object - The transaction call object with the following fields:

• from - String - The address the transaction is sent from

• to - String - Required - The address the transaction is directed to

• gas - Integer - The integer of the gas provided for the transaction execution

• gasPrice - Integer - The integer of the gasPrice used for paid gas

• value - Integer - The integer of the value sent with this transaction

• data - String - The has of the method signature and encoded parameters

blockReference - String - Required - The block number in hexadecimal format, the block hash, or tags: "earliest", "latest" or "pending".

object - Object (Optional) - The tracer object with the following fields:

• tracer - String - The type of tracer, options are: callTracer or prestateTracer.

  • callTracer - String - The callTracer keeps track of all call frames, including depth - calls, that are made during a transaction.

  • prestateTracer - String - The prestateTracer replays the transaction and tracks every part of state that occurred during the transaction.

• tracerConfig - Object (Optional) - The object to specify the configurations of the tracer.

  • onlyTopCall - Boolean - When set to true, this will only trace the primary (top-level) call and not any sub-calls. It eliminates the additional processing for each call frame.

Returns

result - An object with the result of the trace, containing:

• gas - The integer of the total consumed gas in the transaction.

• failed - A boolean to indicate whether the transaction was successful or not.

• returnValue - The return value of the executed contract call.

• structLogs - An array of the trace result of each step with the following fields:

  • pc - The current index in bytecode.

  • op - The name of the current executing operation.

  • gas - The available gas in the execution.

  • gasCost - The gas cost of the operation.

  • depth - The number of levels of calling functions.

  • error - The error of the execution.

  • stack - An array of values in the current stack.

  • memory - An array of values in the current memory.

  • storage - The mapping of the current storage.

  • refund - Total total value of the current refund value.

// Result
{
	"jsonrpc": "2.0",
	"result": {
		"from": "0x0000000000000000000000000000000000000000",
		"gas": "0x2faf080",
		"gasUsed": "0x53b8",
		"to": "0x6b175474e89094c44da98b954eedeac495271d0f",
		"input": "0x70a082310000000000000000000000006e0d01a76c3cf4288372a29124a26d4353ee51be",
		"value": "0x0",
		"type": "CALL"
	},
	"id": 1
}

mainnet

curl https://mainnet.ethereum.validationcloud.io/v1/<YOUR_API_KEY_HERE> \
    -X POST \
    -H "Content-Type: application/json" \
    -d '{"jsonrpc":"2.0","method":"debug_traceCall","params":[{"from":null,"to":"0x6b175474e89094c44da98b954eedeac495271d0f","data":"0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"}, "latest", {"tracer": "callTracer"}],"id":1}'