Node.js, Next.js and NestJS

What we detectCopy Anchor Link

A package.json at your app's root makes it a Node.js app. We recognise Next.js, Nuxt, NestJS, Express, Fastify, Koa and Hono from your dependencies.

• Install: npm, yarn or pnpm, from your lockfile.
• Build: your build script, if there is one.
• Start: your start script.
• Node version: the one in .nvmrc, .node-version or engines in package.json; otherwise Node 22.

Listen on PORTCopy Anchor Link

const express = require("express");
const app = express();

app.get("/", (req, res) => res.send("Hello from DockHosting"));

const port = process.env.PORT || 3000;
app.listen(port, "0.0.0.0", () => console.log(`listening on ${port}`));

{
  "scripts": {
    "start": "node server.js"
  }
}

Next.jsCopy Anchor Link

Next.js works as-is: we run next build, then next start, which reads PORT.

{
  "scripts": {
    "build": "next build",
    "start": "next start"
  }
}

NestJSCopy Anchor Link

NestJS builds with nest build. Listen on PORT in main.ts:

const app = await NestFactory.create(AppModule);
await app.listen(process.env.PORT ?? 3000, "0.0.0.0");

{
  "scripts": {
    "build": "nest build",
    "start": "node dist/main"
  }
}

DatabasesCopy Anchor Link

Link a database and read DATABASE_URL: Prisma, Drizzle, Sequelize, TypeORM, Mongoose and pg all accept a connection URL. For MongoDB, read MONGODB_URI; for Redis, REDIS_URL.

datasource db {
  provider = "postgresql"
  url      = env("DATABASE_URL")
}