Trace transaction execution

POST

https://tao.nownodes.io/

Authorizations

ApiKeyAuthApiKeyAuth

api-key string

NOWNodes API key passed in the api-key header.

Returns all traces of a given transaction

Body

application/json

jsonrpcstringrequired

methodstringrequired

paramsArray<string | object>required

Show child attributes

Any of

string

object

idintegerrequired

Response

200OK

Transaction execution trace

400Bad Request

Bad Request

500Internal Server Error

Internal Server Error

Trace transaction execution

curl -X POST 'https://tao.nownodes.io/' \
  -H 'Content-Type: application/json' \
  -d '{
    "jsonrpc": "2.0",
    "method": "debug_traceTransaction",
    "params": [
      "0x9e63085271890a141297039b3b711913699f1ee4db1acb667ad7ce304772036b",
      {
        "tracer": "callTracer"
      }
    ],
    "id": 1
  }'

import { JsonRpcProvider } from "ethers";

const provider = new JsonRpcProvider("https://tao.nownodes.io/");
const result = await provider.send("debug_traceTransaction", [
  "0x9e63085271890a141297039b3b711913699f1ee4db1acb667ad7ce304772036b",
  {
    "tracer": "callTracer"
  }
]);
console.log(result);

require 'eth'
require 'json'
require 'net/http'

uri = URI('https://tao.nownodes.io/')
request = Net::HTTP::Post.new(uri)
request['Content-Type'] = 'application/json'
request.body = '{
  "jsonrpc": "2.0",
  "method": "debug_traceTransaction",
  "params": [
    "0x9e63085271890a141297039b3b711913699f1ee4db1acb667ad7ce304772036b",
    {
      "tracer": "callTracer"
    }
  ],
  "id": 1
}'

response = Net::HTTP.start(uri.hostname, uri.port, use_ssl: true) do |http|
  http.request(request)
end

puts JSON.parse(response.body)

from web3 import Web3

w3 = Web3(Web3.HTTPProvider("https://tao.nownodes.io/"))
response = w3.provider.make_request("debug_traceTransaction", [
  "0x9e63085271890a141297039b3b711913699f1ee4db1acb667ad7ce304772036b",
  {
    "tracer": "callTracer"
  }
])
print(response)

import { createPublicClient, http } from "viem";

const client = createPublicClient({
  transport: http("https://tao.nownodes.io/"),
});

const result = await client.request({
  method: "debug_traceTransaction",
  params: [
  "0x9e63085271890a141297039b3b711913699f1ee4db1acb667ad7ce304772036b",
  {
    "tracer": "callTracer"
  }
],
});

console.log(result);

const endpoint = "https://tao.nownodes.io/";
const apiKey = "YOUR_API_KEY";

async function nownodesRequest(payload) {
  const response = await fetch(endpoint, {
    method: "POST",
    headers: {
      "Content-Type": "application/json",
      "api-key": apiKey,
    },
    body: JSON.stringify(payload),
  });

  return response.json();
}

const result = await nownodesRequest({ jsonrpc: "2.0", method: "debug_traceTransaction", params: [
  "0x9e63085271890a141297039b3b711913699f1ee4db1acb667ad7ce304772036b",
  {
    "tracer": "callTracer"
  }
], id: 1 });
console.log(result);

const response = await fetch('https://tao.nownodes.io/', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({
      "jsonrpc": "2.0",
      "method": "debug_traceTransaction",
      "params": [
        "0x9e63085271890a141297039b3b711913699f1ee4db1acb667ad7ce304772036b",
        {
          "tracer": "callTracer"
        }
      ],
      "id": 1
    }),
});

const data = await response.json();

import requests

payload = {
  "jsonrpc": "2.0",
  "method": "debug_traceTransaction",
  "params": [
    "0x9e63085271890a141297039b3b711913699f1ee4db1acb667ad7ce304772036b",
    {
      "tracer": "callTracer"
    }
  ],
  "id": 1
}

response = requests.post('https://tao.nownodes.io/', json=payload)
data = response.json()

require 'net/http'
require 'json'

uri = URI('https://tao.nownodes.io/')
request = Net::HTTP::Post.new(uri)
request['Content-Type'] = 'application/json'
request.body = '{
    "jsonrpc": "2.0",
    "method": "debug_traceTransaction",
    "params": [
      "0x9e63085271890a141297039b3b711913699f1ee4db1acb667ad7ce304772036b",
      {
        "tracer": "callTracer"
      }
    ],
    "id": 1
  }'

response = Net::HTTP.start(uri.hostname, uri.port, use_ssl: true) { |http| http.request(request) }
data = JSON.parse(response.body)

Request Body

{
  "jsonrpc": "2.0",
  "method": "debug_traceTransaction",
  "params": [
    "0x9e63085271890a141297039b3b711913699f1ee4db1acb667ad7ce304772036b",
    {
      "tracer": "callTracer"
    }
  ],
  "id": 1
}

200

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": {
    "type": "CALL",
    "from": "0x688c1de81ce07a698679928ae319bbe503da1a5d",
    "to": "0xf15176bc2a8d95102e21641fc0c3b1a9990d2d2d",
    "value": "0x0",
    "gas": "0x226c9",
    "gasUsed": "0x1a529",
    "input": "0xaea01419000000000000000000000000000000000000000000000000000000000000006000000000000000000000000000000000000000000000000000000000000000a000000000000000000000000000000000000000000000000000000000000000e00000000000000000000000000000000000000000000000000000000000000001000000000000000000000000000000000000000000000000000000000000000500000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000001000000000000000000000000000000000000000000000000000000000000000b7180b07bd1906c59af640bd8eeab367b7594f9af0fc90ecd5ebe7c0a1be8a4e536f3393fd943b12745241929d83318675e662c725c1ede53fcb3b8396277bf617b5839bd4d6e005d4dda81701f87378e34cb9cbd113c435db0c10ac07f2465579615210131a0c66381308e606e3b6da4a360285b8865010f14d3c3f92aa9043d6d48b0e6493b6b63887c0fbfe88c48d280c01cbf4df2a77a7221536436b02c0382ab5368bb19710ec9ba7bf6375faf6d4936e21152556361682e63b083f0b61402ac2171cc082861c603adf7e26abfc9c196e8fe07491088f1a887a8e2124e90f9b26afe29ac9f0c44594eb6ad83ce13fc4362fb86cd71e5d8133548a9ed2165d90a60b7959951ce31ebe733f8e648987339c66246b7dcab61eae5c6f95604a2133af90e4ee678878c0c249c07e4f3159c5e7bef52a67baf54e075715cc39b4795940b8f2632eabc4a68d61d83c4ed2a4b4a2a1d80da98ee8a74a0d497924866",
    "output": "string",
    "error": "string",
    "revertReason": "string",
    "calls": [
      {}
    ]
  }
}

Documentation

How to migrate to NOWNodes

Trace transaction execution

Authorizations

Body

Response