eth_getBlockByNumber

POST

wss://optimism.nownodes.io/wss/{api_key}

Returns information about a block by block number.

Connection URL:

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wss://optimism.nownodes.io/wss/{{api_key}}

Open the connection, then send the message below as a text frame.

Example:

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wscat -c 'wss://optimism.nownodes.io/wss/YOUR_API_KEY'
> {"jsonrpc":"2.0","method":"eth_getBlockByNumber","params":["0x1b4",true],"id":1}

Body

application/json

object

Parameters

api_keystringrequiredpath

Your NOWNodes API key.

Response

200OK

A successful response.

eth_getBlockByNumber

curl -X POST 'wss://optimism.nownodes.io/wss/{api_key}' \
  -H 'Content-Type: application/json' \
  -d '{
    "jsonrpc": "2.0",
    "method": "eth_getBlockByNumber",
    "params": [
      "0x1b4",
      true
    ],
    "id": 1
  }'

import { JsonRpcProvider } from "ethers";

const provider = new JsonRpcProvider("wss://optimism.nownodes.io/wss/{api_key}");
const result = await provider.send("eth_getBlockByNumber", [
  "0x1b4",
  true
]);
console.log(result);

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

uri = URI('wss://optimism.nownodes.io/wss/{api_key}')
request = Net::HTTP::Post.new(uri)
request['Content-Type'] = 'application/json'
request.body = '{
  "jsonrpc": "2.0",
  "method": "eth_getBlockByNumber",
  "params": [
    "0x1b4",
    true
  ],
  "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("wss://optimism.nownodes.io/wss/{api_key}"))
response = w3.provider.make_request("eth_getBlockByNumber", [
  "0x1b4",
  true
])
print(response)

import { createPublicClient, http } from "viem";

const client = createPublicClient({
  transport: http("wss://optimism.nownodes.io/wss/{api_key}"),
});

const result = await client.request({
  method: "eth_getBlockByNumber",
  params: [
  "0x1b4",
  true
],
});

console.log(result);

const endpoint = "wss://optimism.nownodes.io/wss/{api_key}";
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_getBlockByNumber", params: [
  "0x1b4",
  true
], id: 1 });
console.log(result);

const response = await fetch('wss://optimism.nownodes.io/wss/{api_key}', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({
      "jsonrpc": "2.0",
      "method": "eth_getBlockByNumber",
      "params": [
        "0x1b4",
        true
      ],
      "id": 1
    }),
});

const data = await response.json();

import requests

payload = {
  "jsonrpc": "2.0",
  "method": "eth_getBlockByNumber",
  "params": [
    "0x1b4",
    true
  ],
  "id": 1
}

response = requests.post('wss://optimism.nownodes.io/wss/{api_key}', json=payload)
data = response.json()

require 'net/http'
require 'json'

uri = URI('wss://optimism.nownodes.io/wss/{api_key}')
request = Net::HTTP::Post.new(uri)
request['Content-Type'] = 'application/json'
request.body = '{
    "jsonrpc": "2.0",
    "method": "eth_getBlockByNumber",
    "params": [
      "0x1b4",
      true
    ],
    "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_getBlockByNumber",
  "params": [
    "0x1b4",
    true
  ],
  "id": 1
}

200

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": {
    "blockExtraData": "0x",
    "difficulty": "0x1",
    "extDataHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
    "extraData": "0xd883010916846765746888676f312e31342e39856c696e7578b6a7bff2f7cd4e8c1eda153f001c3e5fdd69c26c1afc3cff3974886e782ff045",
    "gasLimit": "0x3e4985c",
    "gasUsed": "0xcbec",
    "hash": "0x8ba0b60cee01c4a42e687596808b0332e34c7c2371b768641efe58f89e6c41c2",
    "logsBloom": "0x00000000000000000000000000000000400000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000000000000000000000000040000000000000000000000000000000000000000000000000000000000000000000000000000000000000008000000000000000010000000000000000000000000000000000008400000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000080002000000000000000000000000000000000",
    "miner": "0x0100000000000000000000000000000000000000",
    "mixHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
    "nonce": "0x0000000000000000",
    "number": "0x1b4",
    "parentHash": "0x04d1ccba421361c2ac227fef90be045be530b71fe486612a0250d82e40a6d102",
    "receiptsRoot": "0x3982c4136a5bda4bab50002cc86af568e308e48edae4c4705263d511cd78dc0c",
    "sha3Uncles": "0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347",
    "size": "0x510",
    "stateRoot": "0x48a171ad566e60dfce51d37f29a10e22222057accd9bd7ba372461773af09b52",
    "timestamp": "0x5f9b2727",
    "totalDifficulty": "0x1b4",
    "transactions": [
      {
        "blockHash": "0x8ba0b60cee01c4a42e687596808b0332e34c7c2371b768641efe58f89e6c41c2",
        "blockNumber": "0x1b4",
        "from": "0x4abef613822fb2031d897e792f89c896ddafc466",
        "gas": "0xcbec",
        "gasPrice": "0x6d6e2edc00",
        "hash": "0x7c2e516fc905d7b239629697c2d41784a7be1f3dac11f4ee6b655619e664cd3e",
        "input": "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",
        "nonce": "0x6b",
        "to": "0x95042281af6566fc6748f28263ceeecaefb4d2b4",
        "transactionIndex": "0x0",
        "value": "0x0",
        "type": "0x0",
        "chainId": "0xa86a",
        "v": "0x150f8",
        "r": "0x90b65eea8d4c900ec5161da4d231241fbf971c7ef8714595eb5d6cec68b9694d",
        "s": "0x691ff781a43ea04f700d26b8e8d0dbccd6d367b79c798b2f345c9b67f0390390"
      }
    ],
    "transactionsRoot": "0x13be6179c3e234a1da1d93748cd8b035d5e638f43a8ee5ea593dce425f1eb9f4",
    "uncles": []
  }
}