(async () => {
  const { RiotApiClient, Region } = require("valorant.js");
  
  try {
    const client = new RiotApiClient({
      username: "MY_USERNAME", // your username
      password: "MY_PASSWORD", // your password
      region: Region.MY_REGION, // Available regions: EU, NA, AP
    });
    
    await client.login();
    console.log(client.user);
    
    const balance = await client.storeApi.getWallet(client.user.Subject);
    console.log(balance);
  } catch(err) {
    console.error(err);
  }
})();