Trace block by hash

POST

https://kaia.nownodes.io/

Authorizations

ApiKeyAuthApiKeyAuth

api-key string

NOWNodes API key passed in the api-key header.

Returns the possible tracing result number by executing all transactions in the block specified by the block hash with a tracer

Body

application/json

jsonrpcstringrequired

methodstringrequired

paramsArray<string | object>required

Show child attributes

Any of

string

object

idintegerrequired

Response

200OK

Block transaction traces by hash

400Bad Request

Bad Request

500Internal Server Error

Internal Server Error

Trace block by hash

curl -X POST 'https://kaia.nownodes.io/' \
  -H 'Content-Type: application/json' \
  -d '{
    "jsonrpc": "2.0",
    "method": "debug_traceBlockByHash",
    "params": [
      "0x97b49e43632ac70c46b4003434058b18db0ad809617bd29f3448d46ca9085576",
      {
        "tracer": "callTracer"
      }
    ],
    "id": 1
  }'

import { JsonRpcProvider } from "ethers";

const provider = new JsonRpcProvider("https://kaia.nownodes.io/");
const result = await provider.send("debug_traceBlockByHash", [
  "0x97b49e43632ac70c46b4003434058b18db0ad809617bd29f3448d46ca9085576",
  {
    "tracer": "callTracer"
  }
]);
console.log(result);

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

uri = URI('https://kaia.nownodes.io/')
request = Net::HTTP::Post.new(uri)
request['Content-Type'] = 'application/json'
request.body = '{
  "jsonrpc": "2.0",
  "method": "debug_traceBlockByHash",
  "params": [
    "0x97b49e43632ac70c46b4003434058b18db0ad809617bd29f3448d46ca9085576",
    {
      "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://kaia.nownodes.io/"))
response = w3.provider.make_request("debug_traceBlockByHash", [
  "0x97b49e43632ac70c46b4003434058b18db0ad809617bd29f3448d46ca9085576",
  {
    "tracer": "callTracer"
  }
])
print(response)

import { createPublicClient, http } from "viem";

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

const result = await client.request({
  method: "debug_traceBlockByHash",
  params: [
  "0x97b49e43632ac70c46b4003434058b18db0ad809617bd29f3448d46ca9085576",
  {
    "tracer": "callTracer"
  }
],
});

console.log(result);

const endpoint = "https://kaia.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_traceBlockByHash", params: [
  "0x97b49e43632ac70c46b4003434058b18db0ad809617bd29f3448d46ca9085576",
  {
    "tracer": "callTracer"
  }
], id: 1 });
console.log(result);

const response = await fetch('https://kaia.nownodes.io/', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({
      "jsonrpc": "2.0",
      "method": "debug_traceBlockByHash",
      "params": [
        "0x97b49e43632ac70c46b4003434058b18db0ad809617bd29f3448d46ca9085576",
        {
          "tracer": "callTracer"
        }
      ],
      "id": 1
    }),
});

const data = await response.json();

import requests

payload = {
  "jsonrpc": "2.0",
  "method": "debug_traceBlockByHash",
  "params": [
    "0x97b49e43632ac70c46b4003434058b18db0ad809617bd29f3448d46ca9085576",
    {
      "tracer": "callTracer"
    }
  ],
  "id": 1
}

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

require 'net/http'
require 'json'

uri = URI('https://kaia.nownodes.io/')
request = Net::HTTP::Post.new(uri)
request['Content-Type'] = 'application/json'
request.body = '{
    "jsonrpc": "2.0",
    "method": "debug_traceBlockByHash",
    "params": [
      "0x97b49e43632ac70c46b4003434058b18db0ad809617bd29f3448d46ca9085576",
      {
        "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_traceBlockByHash",
  "params": [
    "0x97b49e43632ac70c46b4003434058b18db0ad809617bd29f3448d46ca9085576",
    {
      "tracer": "callTracer"
    }
  ],
  "id": 1
}

200

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": [
    {
      "type": "CALL",
      "from": "0x8894e0a0c962cb723c1976a4421c95949be2d4e3",
      "to": "0x6b175474e89094c44da98b954eedeac495271d0f",
      "value": "0x0",
      "gas": "0x30d40",
      "gasUsed": "0x7148",
      "input": "0xa9059cbb0000000000000000000000002c46b28e4bac6b0188baf722f17f5f36e217033000000000000000000000000000000000000000000000000058d15e176280000",
      "output": "0x0000000000000000000000000000000000000000000000000000000000000001",
      "calls": [
        {
          "type": "STATICCALL",
          "from": "0x6b175474e89094c44da98b954eedeac495271d0f",
          "to": "0x8894e0a0c962cb723c1976a4421c95949be2d4e3",
          "gas": "0x2e010",
          "gasUsed": "0x1388",
          "input": "0x70a08231000000000000000000000000c02aaa39b223fe8d0a0e5c4f27ead9083c756cc2",
          "output": "0x0000000000000000000000000000000000000000000b56ea85ae38dd000000",
          "calls": [
            {}
          ]
        }
      ]
    }
  ]
}

Documentation

How to migrate to NOWNodes

Trace block by hash

Authorizations

Body

Response