getBalance 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": "getBalance",
  "params": [
    "9xQeWvG816bUx9EPjHmaT23yvVM2ZWbrrpZb9PusVFin"
  ]
}'

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

async function checkBalance() {
  const rpcUrl = 'https://mainnet.helius-rpc.com/?api-key=YOUR_API_KEY'; // Replace YOUR_API_KEY
  const connection = new Connection(rpcUrl, 'confirmed');
  const accountPubKey = new PublicKey('9xQeWvG816bUx9EPjHmaT23yvVM2ZWbrrpZb9PusVFin');

  try {
    const lamports = await connection.getBalance(accountPubKey);
    const sol = lamports / LAMPORTS_PER_SOL;

    console.log(`Account PubKey: ${accountPubKey.toBase58()}`);
    console.log(`Balance (Lamports): ${lamports}`);
    console.log(`Balance (SOL): ${sol}`);

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

checkBalance();

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

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

const publicKey = address("83astBRguLMdt2h5U1Tpdq5tjFoJ6noeGwaY3mDLVcri");
const balance = await rpc.getBalance(publicKey).send();

console.log("Account Balance:", balance);

use anyhow::Result;
use solana_client::nonblocking::rpc_client::RpcClient;
use solana_sdk::{
    commitment_config::CommitmentConfig, native_token::LAMPORTS_PER_SOL, pubkey::Pubkey,
};
use std::str::FromStr;

#[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 pubkey = Pubkey::from_str("83astBRguLMdt2h5U1Tpdq5tjFoJ6noeGwaY3mDLVcri")?;
    let balance = client.get_balance(&pubkey).await?;

    println!("{:#?} SOL", balance / LAMPORTS_PER_SOL);

    Ok(())
}