const required = ["APP_ENV", "PORT", "API_TOKEN"];

for (const name of required) {
  if (!process.env[name]) {
    console.error(`missing ${name}`);
    process.exit(1);
  }
}

console.log(`environment=${process.env.APP_ENV}`);
console.log(`port=${process.env.PORT}`);
console.log("apiToken=loaded");