trace_block RPC Method

Please note that this RPC method is available to all users on the Build plan and higher. If you are using the Free plan, you will need to upgrade to utilize this method. See our pricing for more information.

Parameters

blockNumber

string

REQUIRED

The block number as a string in hexadecimal format or tags. The supported tag values include earliest for the earliest/genesis block, latest for the latest mined block, pending for the pending state/transactions, safe for the most recent secure block, and finalized for the most recent secure block accepted by more than 2/3 of validators. safe and finalized are only supported on Ethereum and Gnosis

Returns

array

The block traces, which have the following fields (please note that all return types are hexadecimal representations of their data type unless otherwise stated):

action

The ParityTrace object, which has the following fields:

from

The address of the sender

callType

The type of method such as call, delegatecall

gas

The gas provided by the sender, encoded as hexadecimal

input

The data sent along with the transaction

to

The address of the receiver

value

The integer of the value sent with this transaction, encoded as hexadecimal

blockHash

The hash of the block where this transaction was in

blockNumber

An integer value representing the block number where this transaction was in

error

The error message, if any

result

The ParityTraceResult object which has the following fields:

gasUsed

The amount of gas used by this specific transaction alone

output

The value returned by the contract call, and it only contains the actual value sent by the RETURN method. If the RETURN method was not executed, the output is empty bytes

subtraces

The traces of contract calls made by the transaction

traceAddress

The list of addresses where the call executed, the address of the parents and the order of the current sub call

transactionHash

The hash of the transaction

transactionPosition

The transaction position

type

The value of the method such as call or create

Request

curl https://docs-demo.quiknode.pro/ \
  -X POST \
  -H "Content-Type: application/json" \
  --data '{"method":"trace_block","params":["0xccb93d"],"id":1,"jsonrpc":"2.0"}'

require 'eth'

client = Eth::Client.create 'https://docs-demo.quiknode.pro/'
payload = {
    "jsonrpc": "2.0",
    "method": "trace_block",
    "params": ["0xccb93d"],
    "id": "1"
}

response = client.send(payload.to_json)
puts response

import { ethers } from "ethers";
(async () => {
  const provider = new ethers.JsonRpcProvider("https://docs-demo.quiknode.pro/");
  const block = await provider.send("trace_block", ["0xccb93d"]);
  console.log(block);
})();

var myHeaders = new Headers();
myHeaders.append("Content-Type", "application/json");

var raw = JSON.stringify({
  "method": "trace_block",
  "params": [
    "0xccb93d"
  ],
  "id": 1,
  "jsonrpc": "2.0"
});

var requestOptions = {
  method: 'POST',
  headers: myHeaders,
  body: raw,
  redirect: 'follow'
};

fetch("https://docs-demo.quiknode.pro/", requestOptions)
  .then(response => response.text())
  .then(result => console.log(result))
  .catch(error => console.log('error', error));

import requests
import json

url = "https://docs-demo.quiknode.pro/"

payload = json.dumps({
  "method": "trace_block",
  "params": [
    "0xccb93d"
  ],
  "id": 1,
  "jsonrpc": "2.0"
})
headers = {
  'Content-Type': 'application/json'
}

response = requests.request("POST", url, headers=headers, data=payload)

print(response.text)

require "uri"
require "json"
require "net/http"

url = URI("https://docs-demo.quiknode.pro/")

https = Net::HTTP.new(url.host, url.port)
https.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Content-Type"] = "application/json"
request.body = JSON.dump({
  "method": "trace_block",
  "params": [
    "0xccb93d"
  ],
  "id": 1,
  "jsonrpc": "2.0"
})

response = https.request(request)
puts response.read_body

from web3 import HTTPProvider

client = HTTPProvider('https://docs-demo.quiknode.pro/')
result = client.make_request('trace_block', ['0xccb93d'])
print(result)

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