eth_blockNumber - BSC

Example code for the eth_blockNumber JSON RPC method. Сomplete guide on how to use eth_blockNumber JSON RPC in GetBlock Web3 documentation.

This method returns the number of the most recent block on the BNB Smart Chain. This is a fundamental method for tracking blockchain state and monitoring network progress. With BSC's ~3 second block times, this value updates frequently, making it essential for applications requiring real-time blockchain data.

Parameter

None

Request Example

curl --location --request POST 'https://go.getblock.io/<ACCESS-TOKEN>/' \
--header 'Content-Type: application/json' \
--data-raw '{
    "jsonrpc": "2.0",
    "method": "eth_blockNumber",
    "params": [],
    "id": "getblock.io"
}'

const axios = require('axios');

const url = 'https://go.getblock.io/<ACCESS-TOKEN>/';

const payload = {
    jsonrpc: '2.0',
    method: 'eth_blockNumber',
    params: [],
    id: 'getblock.io'
};

axios.post(url, payload, {
    headers: { 'Content-Type': 'application/json' }
})
.then(response => {
    const blockNumber = parseInt(response.data.result, 16);
    console.log('Current Block Number:', blockNumber);
})
.catch(error => console.error(error));

import requests
import json

url = "https://go.getblock.io/<ACCESS-TOKEN>/"

payload = {
    "jsonrpc": "2.0",
    "method": "eth_blockNumber",
    "params": [],
    "id": "getblock.io"
}

response = requests.post(url, headers={"Content-Type": "application/json"}, json=payload)
block_number = int(response.json()["result"], 16)
print(f"Current Block Number: {block_number}")

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_blockNumber",
        "params": [],
        "id": "getblock.io"
    });

    let response = client
        .post("https://go.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": "0x4a88c98"
}

Response Parameters

Parameter

Type

Description

jsonrpc

string

JSON-RPC version (2.0)

string

Request identifier

result

string

Hexadecimal block number (e.g., 0x2625a00 = 40,000,000)

Use Cases

Monitor blockchain synchronization status
Calculate transaction confirmations
Track network liveness and progress
Implement block-based polling for updates
Determine finality for transactions on BSC

Error Handling

Error Code

Description

-32603

Internal error - node processing issues

-32000

Server error - RPC endpoint unavailable

SDK Integration

const { ethers } = require('ethers');

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

const blockNumber = await provider.getBlockNumber();
console.log('Current Block:', blockNumber);

import { createPublicClient, http } from 'viem';
import { bsc } from 'viem/chains';

const client = createPublicClient({
    chain: bsc,
    transport: http('https://go.getblock.io/<ACCESS-TOKEN>/')
});

const blockNumber = await client.getBlockNumber();
console.log('Current Block:', blockNumber);

Previouseth_getTransactionByHash - BSC Nexteth_getBlockTransactionCountByNumber - BSC

Last updated 12 days ago

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