.env.local.production !!install!!

console.log( ✅ Loaded env from: $nodeEnv mode );

const apiKey = process.env.API_KEY; const apiSecret = process.env.API_SECRET; .env.local.production

If you use Docker, mount a separate .env file: console

be committed to version control as they often contain sensitive API keys or database credentials. const apiKey = process.env.API_KEY

export default function handler(req, res) res.status(200).json( nodeEnv: process.env.NODE_ENV, customVar: process.env.MY_CUSTOM_VAR, // Warning: Do not do this in real production allEnv: process.env );