getBlockHeight 사용 방법

curl https://mainnet.helius-rpc.com/?api-key=YOUR_API_KEY -X POST -H "Content-Type: application/json" -d \
'{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "getBlockHeight",
  "params": [] 
}'

const { Connection } = require('@solana/web3.js');

async function getCurrentBlockHeight() {
  const rpcUrl = 'https://mainnet.helius-rpc.com/?api-key=YOUR_API_KEY'; // Replace YOUR_API_KEY
  const connection = new Connection(rpcUrl, 'confirmed');

  try {
    const blockHeight = await connection.getBlockHeight();
    console.log(`Current Block Height: ${blockHeight}`);

  } catch (error) {
    console.error('Error fetching block height:', error);
  }
}

getCurrentBlockHeight();

import { createSolanaRpc } from "@solana/kit";

const rpc_url = "https://mainnet.helius-rpc.com/?api-key=YOUR_API_KEY";
const rpc = createSolanaRpc(rpc_url);

let blockHeight = await rpc.getBlockHeight().send();

console.log("block height:", blockHeight);

use anyhow::Result;
use solana_client::nonblocking::rpc_client::RpcClient;
use solana_sdk::commitment_config::CommitmentConfig;

#[tokio::main]
async fn main() -> Result<()> {
    let client = RpcClient::new_with_commitment(
        String::from("https://mainnet.helius-rpc.com/?api-key=YOUR_API_KEY"),
        CommitmentConfig::confirmed(),
    );

    let block_height = client.get_block_height().await?;

    println!("Block height: {:#?}", block_height);

    Ok(())
}