eth_getBlockByNumber - Robinhood

Example code for the eth_getBlockByNumber JSON-RPC method. Complete guide to using the eth_getBlockByNumber JSON-RPC method in GetBlock.io Web3 documentation.

Returns block information by block number. Same response schema as eth_getBlockByHash. Use tags latest, safe, finalized, pending, earliest for relative block references. On Arbitrum Orbit, finalized means the block has settled on L1 (typically minutes behind latest).

Parameters

Parameter	Type	Required	Description
blockNumber	QUANTITY | TAG	Yes	Block number (hex) or tag (latest, safe, finalized, pending, earliest)
fullTransactions	boolean	Yes	true for full transaction objects, false for hashes only

Request Example

cURL

curl --location --request POST 'https://shared.us-east-1.getblock.io/<ACCESS-TOKEN>/' \
--header 'Content-Type: application/json' \
--data-raw '{
    "jsonrpc": "2.0",
    "method": "eth_getBlockByNumber",
    "params": [
        "latest",
        false
    ],
    "id": "getblock.io"
}'

JavaScript (Axios)

import axios from 'axios';

const data = JSON.stringify({
    "jsonrpc": "2.0",
    "method": "eth_getBlockByNumber",
    "params": [
        "latest",
        false
    ],
    "id": "getblock.io"
});

const config = {
    method: 'post',
    url: 'https://shared.us-east-1.getblock.io/<ACCESS-TOKEN>/',
    headers: {
        'Content-Type': 'application/json'
    },
    data: data
};

axios(config)
    .then(response => console.log(JSON.stringify(response.data, null, 2)))
    .catch(error => console.log(error));

Python (Requests)

import requests
import json

url = "https://shared.us-east-1.getblock.io/<ACCESS-TOKEN>/"

payload = json.dumps({
    "jsonrpc": "2.0",
    "method": "eth_getBlockByNumber",
    "params": [
        "latest",
        false
    ],
    "id": "getblock.io"
})

headers = {
    'Content-Type': 'application/json'
}

response = requests.post(url, headers=headers, data=payload)
print(response.text)

Rust (Reqwest)

use reqwest::Client;
use serde_json::json;

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    let client = Client::new();

    let payload = json!({
        "jsonrpc": "2.0",
        "method": "eth_getBlockByNumber",
        "params": [
                "latest",
                false
        ],
        "id": "getblock.io"
});

    let response = client
        .post("https://shared.us-east-1.getblock.io/<ACCESS-TOKEN>/")
        .header("Content-Type", "application/json")
        .json(&payload)
        .send()
        .await?;

    let result: serde_json::Value = response.json().await?;
    println!("{:#?}", result);

    Ok(())
}

Response Example

{
    "jsonrpc": "2.0",
    "id": "getblock.io",
    "result": {
        "number": "0x124f80",
        "hash": "0x8b5c6f1a9e8d7c6b5a4f3e2d1c0b9a8e7f6d5c4b3a2b1f9e8d7c6b5a4f3e2d1c",
        "parentHash": "0x47edbdc8da5cd1b3127ea8f1ce5da6739fa39e7e6d2eb1c9b50f1c83de0a98b4",
        "timestamp": "0x68f3b85f",
        "miner": "0xa4b000000000000000000073657175656e636572",
        "gasLimit": "0x1c9c380",
        "gasUsed": "0xe4e1c0",
        "baseFeePerGas": "0x5f5e100",
        "l1BlockNumber": "0x1234567",
        "transactions": [
            "0xa8f9b3c7d2e4f6a1b9c8d7e6f5a4b3c2d1e0f9a8b7c6d5e4f3a2b1c0d9e8f7a6"
        ]
    }
}

Response Parameters

Field	Type	Description
result	Block | null	Block object, or null if no block at this number exists

Use Cases

• Sequential block scanning by height

• Indexer backfill jobs

• Block explorer pages

• Distinguishing latest (soft-confirmed) vs finalized (L1-settled) blocks

Error Handling

Status Code	Error Message	Cause
403	Forbidden	Missing or invalid <ACCESS-TOKEN>
-32602	Invalid params	Request parameters are missing or malformed
-32603	Internal error	Server-side error while processing the request
429	Too Many Requests	Rate limit exceeded for your plan

SDK Integration

ethers.js

import { ethers } from 'ethers';

const provider = new ethers.JsonRpcProvider('https://shared.us-east-1.getblock.io/<ACCESS-TOKEN>/');

// Generic JSON-RPC call (works for any method):
const result = await provider.send('eth_getBlockByNumber', ["latest", false]);
console.log(result);

// Many standard methods have typed wrappers on ethers Provider,
// e.g. provider.getBalance(addr), provider.getBlock(n), provider.getTransaction(hash).

viem

import { createPublicClient, http } from 'viem';

const client = createPublicClient({
    transport: http('https://shared.us-east-1.getblock.io/<ACCESS-TOKEN>/')
});

// Generic JSON-RPC request (works for any method):
const result = await client.request({
    method: 'eth_getBlockByNumber',
    params: ["latest", false]
});
console.log(result);

// Many standard methods have typed wrappers on PublicClient,
// e.g. client.getBalance({ address }), client.getBlock({ blockNumber }).