User Microservice Technical Exercise

This repository contains the implementation of a User Microservice using TypeScript, Express, and Prisma (SQLite).

Features

• REST API: Endpoints to manage users.
• GraphQL API: Flexible data querying.
• Swagger Documentation: Interactive API testing.
• Singleton Pattern: The application is managed via a Singleton AppServer.
• CORS Restricted: configured for example.com.

Prerequisites

• Node.js (v18+ recommended)
• npm

Installation

1. Clone the repository:

   git clone <repository-url>
   cd <repository-folder>

2. Install dependencies:

   npm install

Database Setup

This project uses an SQLite database. Initialize it with Prisma:

npx prisma db push

This will create a dev.db file in the prisma directory.

Running the Application

Start the server:

npx ts-node src/index.ts

The server will start at http://localhost:3000.

Usage

REST Endpoints

• Get All Users: GET http://localhost:3000/users
• Get User by ID: GET http://localhost:3000/users/:id

GraphQL

• Endpoint: http://localhost:3000/graphql
• Example Query:

  {
    users {
      id
      name
    }
  }

Documentation

• Swagger UI: http://localhost:3000/api-docs

Project Structure

• src/index.ts: Application entry point and logic.
• prisma/schema.prisma: Database schema definition.