Docker Practice Backend

This project demonstrates a simple Node.js backend written in TypeScript. It exposes a few REST endpoints that use both MongoDB (via Mongoose) and PostgreSQL (via Prisma).

The repository includes a Dockerfile and a docker-compose.yaml to run the service together with MongoDB and PostgreSQL containers. It can also be executed directly with Node locally.

Features

• Express based API server
• MongoDB integration using Mongoose
• PostgreSQL integration using Prisma ORM
• Dockerfile for containerisation
• Docker Compose configuration for local development with MongoDB and PostgreSQL

Endpoints

Method	Endpoint	Description
GET	/	Health check route
GET	/mongo-register	Registers a sample user in MongoDB
GET	/mongo-data	Retrieves all users stored in MongoDB
GET	/prisma-register	Registers a sample user in PostgreSQL
GET	/prisma-data	Retrieves all users stored in PostgreSQL

Running locally

1. Install dependencies

   npm install

2. Create an .env file with the following values (adjust if required):

   PORT=3000
   MONGOSE_URL=mongodb://localhost:27017/my-data
   DATABASE_URL=postgres://myuser:mypass@localhost:5432/mydatabase

3. Build and start the server

   npm run dev

Using Docker Compose

To launch the server together with MongoDB and PostgreSQL containers, run:

docker-compose up --build

When started via compose, the application will be available on http://localhost:3000.

NPM Scripts

• npm run build – Compile the TypeScript source
• npm start – Start the compiled JavaScript from dist/
• npm run dev – Build then start the server
• npm run docker-dev – Used within the Docker container to run migrations, build and start
• npm test – Currently prints a placeholder message

License

This project is provided under the ISC license.