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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 array of transaction objects for that block, each containing:

  • txHash - The transaction hash of the transaction

  • result - An object containing detailed information about the traced transaction

    • beforeEVMTransfers - An array representing EVM transfers that occurred before the execution of the transaction

      • purpose - (Optional) The purpose of the EVM transfer

      • from - (Optional) The Ethereum address initiating the transfer

      • to - (Optional) The Ethereum address receiving the transfer

      • value - (Optional) The value of the transfer, specified in hexadecimal format (Wei)

    • afterEVMTransfers - An array representing EVM transfers that occurred after the execution of the transaction

      • Optional fields are the same as beforeEVMTransfers above

    • from - The address the transaction is sent from.

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

    • gasUsed - The integer of the gas used.

    • to - The address the transaction is directed to.

    • input - The data given at the time of input.

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

    • type - The type of call.

  • calls - A list of sub-calls.

// Result
{
	"jsonrpc": "2.0",
	"result": {
		"beforeEVMTransfers": [
			{
				"purpose": "feePayment",
				"from": "0x0000000000000000000000000000000000000000",
				"to": null,
				"value": "0x0"
			}
		],
		"afterEVMTransfers": [
			{
				"purpose": "gasRefund",
				"from": null,
				"to": "0x0000000000000000000000000000000000000000",
				"value": "0x0"
			},
			{
				"purpose": "feeCollection",
				"from": null,
				"to": "0xbF5041Fc07E1c866D15c749156657B8eEd0fb649",
				"value": "0x321626b400"
			},
			{
				"purpose": "feeCollection",
				"from": null,
				"to": "0xa4B00000000000000000000000000000000000F6",
				"value": "0x14184a66780"
			}
		],
		"from": "0x0000000000000000000000000000000000000000",
		"gas": "0x2fd41dd",
		"gasUsed": "0x26f73",
		"to": "0x16b5856dbc2f66d6dc5b361b0073f51ed5ffb52b",
		"input": "0x727fa213619edc134b3c8b36e117a4b8e95cb5f7cd2330eab81aa241346ebe07",
		"value": "0x0",
		"type": "CALL"
	},
	"id": 1
}
curl https://mainnet.arbitrum.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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