This script allows you to connect to the Polkadot network and retrieve the balance of a specified account. const { ApiPromise, WsProvider } = require('@polkadot/api'); const { Keyring } = require('@polkadot/keyring');
// Connect to the Polkadot network async function connectToPolkadot() { // Create an instance of WsProvider with the specified Polkadot network WebSocket URL const provider = new WsProvider('wss://rpc.polkadot.io');
// Create an instance of ApiPromise using the WsProvider const api = await ApiPromise.create({ provider });
return api; }
// Get the balance of an account async function getAccountBalance(address) { const api = await connectToPolkadot();
// Create a keyring instance const keyring = new Keyring({ type: 'sr25519' });
// Get the account from the address const account = keyring.addFromAddress(address);
// Retrieve the account balance const { data: { free: balance } } = await api.query.system.account(account.address);
return balance; }
// Usage example (async () => { const address = '5E5hG7gfUq3J2p6wKZYFUDYs7CfnkT5bNwL7x9D6Y4sL6cUJ';
// Get the balance of the specified account const balance = await getAccountBalance(address);
console.log(Account Balance: ${balance});
})();