Zomato-inspired Microservices using NestJS

This project demonstrates a simple microservices architecture using NestJS for a Zomato-style system with an API Gateway, a Restaurant Service, and a Menu Service. Built using Domain-Driven Design principles and MongoDB as the database.

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🧱 Services Overview

1. API Gateway (api-gateway)

• Acts as a single entry point for all external requests.
• Explicitly routes requests to either restaurant-service or menu-service.
• Handles all communication via HttpService.
• Includes correlation ID support and Winston logger for traceable logs.

2. Restaurant Service (restaurant-service)

• Manages restaurant-related operations.
• Exposes endpoints:
  • GET /restaurants
  • POST /restaurants

3. Menu Service (menu-service)

• Manages menu items linked to restaurants.
• Exposes endpoints:
  • GET /menus
  • POST /menus

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🚀 Running the Project

Step 1: Clone the Repo

git clone https://github.com/simerdev/api-gatway-example.git
cd zomato-microservices

Step 2: Clone the Repo

cd api-gateway && npm install
cd ../restaurant-service && npm install
cd ../menu-service && npm install

Step 3: Start All Services

cd restaurant-service && npm run start:dev
cd ../menu-service && npm run start:dev
cd ../api-gateway && npm run start:dev

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Technolgies Used

NestJS MongoDB (via Mongoose) Winston Logger Axios (HttpService) Domain-Driven Design (DDD)