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Version: Canary 🚧

How to get a token account's balance

The token account has the token balance, which can be retrieved with a single call

import { clusterApiUrl, Connection, PublicKey } from "@solana/web3.js";

(async () => {
const connection = new Connection(clusterApiUrl("devnet"), "confirmed");

const tokenAccount = new PublicKey(
"FWZedVtyKQtP4CXhT7XDnLidRADrJknmZGA2qNjpTPg8",
);

let tokenAmount = await connection.getTokenAccountBalance(tokenAccount);
console.log(`amount: ${tokenAmount.value.amount}`);
console.log(`decimals: ${tokenAmount.value.decimals}`);
})();
use solana_client::rpc_client::RpcClient;
use solana_program::pubkey::Pubkey;
use solana_sdk::commitment_config::CommitmentConfig;
use std::str::FromStr;

fn main() {
let rpc_url = String::from("https://api.devnet.solana.com");
let connection = RpcClient::new_with_commitment(rpc_url, CommitmentConfig::confirmed());

let token_account = Pubkey::from_str("FWZedVtyKQtP4CXhT7XDnLidRADrJknmZGA2qNjpTPg8").unwrap();
let balance = connection
.get_token_account_balance(&token_account)
.unwrap();

println!("amount: {}, decimals: {}", balance.amount, balance.decimals);
}
A token account can only hold one kind of mint. When you specify a token account, you also specific a mint too.