const fs = require('fs'); let envString = ''; envString += `GOOGLE_DRIVE_CLIENT_ID=${process.env.GOOGLE_DRIVE_CLIENT_ID}\n`; envString += `GOOGLE_DRIVE_API_KEY=${process.env.GOOGLE_DRIVE_API_KEY}\n`; envString += `CORS_HOST=${process.env.CORS_HOST}\n`; fs.writeFileSync('.env', envString);