create-nodeapi-backend/template/javascript/vercel.json

A powerful Node.js backend boilerplate with Express, MongoDB, Firebase, JWT auth, Nodemailer, cron jobs, input validation (Joi), and serverless support for Vercel. Scaffold a full-featured API backend in seconds.

{
    "version": 2,
    "builds": [
      {
        "src": "app.js",
        "use": "@vercel/node"
      }
    ],
    "routes": [
      {
        "src": "/(.*)",
        "dest": "app.js"
      }
    ]
  }