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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": {
		"gas": 21432,
		"failed": false,
		"returnValue": "",
		"structLogs": []
	},
	"id": 1
}
curl https://mainnet.polygon.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}'
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