trace_call

Executes the given call and returns a number of possible traces for it.
Parameters
Params - a string array containing (required):
Object - Call options, same as eth_call.
from: Address - (optional) 20 Bytes - The address the transaction is send from.
to: Address - (optional when creating new contract) 20 Bytes - The address the transaction is directed to.
gas: Quantity - (optional) Integer formatted as a hex string 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 formatted as a hex string of the gas price used for each paid gas.
value: Quantity - (optional) Integer formatted as a hex string of the value sent with this transaction.
data: Data - (optional) 4 byte hash of the method signature followed by encoded parameters. For details see Ethereum Contract ABI.
Array - Type of trace, one or more of: "vmTrace", "trace", "stateDiff".
QUANTITY|TAG(hex string|string, optional) - integer block number in hex string format, or the string "earliest", "latest" or  "pending", see the default block parameter​
Returns
Array - Block traces.
trace(array).  Array of the given transactions’ traces.
action(object). DATA - Transaction details.
callType(string). type of method, such as call or create.
from(hex string). DATA, 20 Bytes - address of the sender.
to(hex string). DATA, 20 Bytes - address of the receiver.
gas(hex string) . QUANTITY - the amount of gas used by transaction.
input(hex string). DATA - the data send along with the transaction.
value(hex string). QUANTITY - value transferred in Wei.
result(object). DATA - Transaction result.
gasUsed(hex string) . QUANTITY - the amount of gas used by transaction.
output(hex string). DATA - Return value of the contract call. Contains only the actual value sent by a RETURN operation. If a RETURN was not executed, the output is empty bytes.
subTraces(hex string). - Traces of contract calls made by the transaction.
traceAddress(Array). - Tree list address of where the call occurred, address of the parents, and order of the current sub call.
type(string). type of method, such as call or create.
Example
Request
curl
TypeScript
curl https://api.blockvision.org/v1/<api key> \
-X POST \
-H "Content-Type: application/json" \
-d '{
    "jsonrpc": "2.0",
    "method": "trace_call",
    "params": [
        {
            "from": "0xb603da66c08d3d316b3462614cdab768217147c5",
            "to": "0x06bcc078233082021df764a1d5a35a423403d965",
            "value": "0x0",
            "data": "0xa67a6a45000000000000000000000000000000000000000000000000000000000000004000000000000000000000000000"
      	},
        ["trace"]
    ],
    "id": 1
}'
import { BlockVisionProvider, BvNetwork } from 'blockvision.js'
​
// Optional parameters, but default to eth-mainnet and default api-key.
const bv = new BlockVisionProvider(BvNetwork.ETH_MAINNET)
​
// Access BlockVision Enhanced API requests
bv.traceCall(
    {
        from: '0x407d73d8a49eeb85d32cf465507dd71d507100c1',
        to: '0xa94f5374fce5edbc8e2a8697c15331677e6ebf0b',
        value: '0x186a0'
    },
    ['trace'],
    'latest'
).then(console.log)
Result
{
  "jsonrpc": "2.0",
  "id": 0,
  "result": {
    "trace": [
      {
        "action": {
          "from": "0xb603da66c08d3d316b3462614cdab768217147c5",
          "callType": "call",
          "gas": "0x2fa9d78",
          "input": "0xa67a6a45000000000000000000000000000000000000000000000000000000000000004000000000000000000000000000",
          "to": "0x06bcc078233082021df764a1d5a35a423403d965",
          "value": "0x0"
        },
        "result": {
          "gasUsed": "0x0",
          "output": "0x"
        },
        "subtraces": 0,
        "traceAddress": [],
        "type": "call"，
        "output": "0x",
        "stateDiff": null
      }
    ],
    "vmTrace": null
  }
}
web3_clientVersion
trace_callMany
Last modified 1mo ago