Get Transaction by Block Hash and Index

POST

https://eth-sepolia.nownodes.io/

Authorizations

ApiKeyAuthApiKeyAuth

api-key string

NOWNodes API key passed in the api-key header.

Retrieves the transaction from a block using the block's hash and the transaction's index position within the block.

Body

application/json

Retrieves the transaction from a block using the block's hash and the transaction's index position within the block.

Request payload for Get Transaction by Block Hash and Index.

jsonrpcstringrequired

JSON-RPC protocol version.

methodstringrequired

JSON-RPC method name.

paramsArray<string>required

Parameters:

blockHash (string): The 32-byte hash of the block.
transactionIndex (string): The transaction index (hex).

idintegerrequired

Client-provided request identifier echoed in the response.

Response

200OK

A transaction object or null if no transaction was found.

401Unauthorized

Unauthorized: API key is present but rejected by the NOWNodes gateway.

405Method Not Allowed

Method Not Allowed. Returned by the NOWNodes gateway for malformed or unsupported gateway-level requests.

422Unprocessable Entity

Missing API key. The NOWNodes gateway returns plain text for this error.

500Internal Server Error

Upstream node or gateway error.

Get Transaction by Block Hash and Index

curl -X POST 'https://eth-sepolia.nownodes.io/' \
  -H 'Content-Type: application/json' \
  -d '{
    "jsonrpc": "2.0",
    "method": "eth_getTransactionByBlockHashAndIndex",
    "params": [
      "0x0"
    ],
    "id": 1
  }'

import { JsonRpcProvider } from "ethers";

const provider = new JsonRpcProvider("https://eth-sepolia.nownodes.io/");
const result = await provider.send("eth_getTransactionByBlockHashAndIndex", [
  "0x0"
]);
console.log(result);

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

uri = URI('https://eth-sepolia.nownodes.io/')
request = Net::HTTP::Post.new(uri)
request['Content-Type'] = 'application/json'
request.body = '{
  "jsonrpc": "2.0",
  "method": "eth_getTransactionByBlockHashAndIndex",
  "params": [
    "0x0"
  ],
  "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://eth-sepolia.nownodes.io/"))
response = w3.provider.make_request("eth_getTransactionByBlockHashAndIndex", [
  "0x0"
])
print(response)

import { createPublicClient, http } from "viem";

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

const result = await client.request({
  method: "eth_getTransactionByBlockHashAndIndex",
  params: [
  "0x0"
],
});

console.log(result);

const endpoint = "https://eth-sepolia.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: "eth_getTransactionByBlockHashAndIndex", params: [
  "0x0"
], id: 1 });
console.log(result);

const response = await fetch('https://eth-sepolia.nownodes.io/', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({
      "jsonrpc": "2.0",
      "method": "eth_getTransactionByBlockHashAndIndex",
      "params": [
        "0x0"
      ],
      "id": 1
    }),
});

const data = await response.json();

import requests

payload = {
  "jsonrpc": "2.0",
  "method": "eth_getTransactionByBlockHashAndIndex",
  "params": [
    "0x0"
  ],
  "id": 1
}

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

require 'net/http'
require 'json'

uri = URI('https://eth-sepolia.nownodes.io/')
request = Net::HTTP::Post.new(uri)
request['Content-Type'] = 'application/json'
request.body = '{
    "jsonrpc": "2.0",
    "method": "eth_getTransactionByBlockHashAndIndex",
    "params": [
      "0x0"
    ],
    "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": "eth_getTransactionByBlockHashAndIndex",
  "params": [
    "0xb3b20624a42dffdf1af8e8a6c9b338360585cc309831785f2138e1f9c35a1f09",
    "0x0"
  ],
  "id": 1
}

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": {
    "blockHash": "0x4889464db49c4f8a2bb9efce57060faffaa6e2e2e442b0db3ae64469cd91d623",
    "blockNumber": "0xaa78d0",
    "blockTimestamp": "0x6a4399ac",
    "from": "0xd1860679770b1ad818e041e3e26e3f3d6035b937",
    "gas": "0x15f90",
    "gasPrice": "0xccdb50ac",
    "hash": "0x020039db9c3d44f42efffa453e5d88e028f6fc9fba015f3b320101d10f5bbff6",
    "input": "0x",
    "nonce": "0x26f",
    "to": "0x2553b57b692ba0755b42c7a2bd02ca2196a1e73e",
    "transactionIndex": "0x0",
    "value": "0x6d93ca6c63f0",
    "type": "0x0",
    "chainId": "0xaa36a7",
    "v": "0x1546d71",
    "r": "0x7cd3d987ac61a466220a4cef09e1227d5a53e4888f7f7128a0fe9c1640f7539e",
    "s": "0x7b9370120d693cbf2b9f3b7a7cf987fd72877066ed69801ad256852dd0eb5513"
  }
}

{
  "jsonrpc": "2.0",
  "id": 1,
  "error": {
    "code": -32602,
    "message": "invalid argument 0: json: cannot unmarshal hex string without 0x prefix into Go value of type common.Hash"
  }
}

Unknown API_key

Method Not Allowed

Missing API_key

{
  "jsonrpc": "2.0",
  "id": 1,
  "error": {
    "code": -32602,
    "message": "invalid argument 0: json: cannot unmarshal hex string without 0x prefix into Go value of type common.Hash"
  }
}

Documentation

How to migrate to NOWNodes

Get Transaction by Block Hash and Index

Authorizations

Body

Response