🛒 E-commerce Microservices with Golang, FastAPI, Flask, and Node.js

This project demonstrates a simple microservices architecture with Golang, FastAPI, Flask, and Node.js.
Each service handles different aspects of an e-commerce system and communicates via REST APIs.
The entire system runs with Docker Compose.

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📌 Microservices Overview

Service	Technology	Port	Description
API Gateway	Golang (Gin)	5000	Routes requests & aggregates data
User Service	Golang (Gin)	5001	Handles user details
Order Service	FastAPI	5002	Handles order details
Payment Service	Flask	5003	Handles payment details
Product Service	Node.js (Express)	5004	Handles product details

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🚀 How to Run

1️⃣ Clone the Repository

git clone https://github.com/sajosam/ecommerce-microservices.git
cd ecommerce-microservices

2️⃣ Build & Start All Services

docker-compose up --build

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📌 API Endpoints

🔹 User Service (Golang)

• GET /users/{id} → Get user details

🔹 Order Service (FastAPI)

• GET /orders/{user_id} → Get user orders

🔹 Payment Service (Flask)

• GET /payments/{user_id} → Get user payments

🔹 Product Service (Node.js)

• GET /products/{user_id} → Get user products

🔹 API Gateway (Golang)

• GET /all-details/{user_id} → Fetch all details in a single response

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🔥 Testing the APIs

Get User Details

curl http://localhost:5000/users/1

Get User Orders

curl http://localhost:5000/orders/1

Get User Payments

curl http://localhost:5000/payments/1

Get User Products

curl http://localhost:5000/products/1

Get All User Data in a Single JSON

curl http://localhost:5000/all-details/1

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📦 Docker Setup

Each microservice has a Dockerfile and is managed using Docker Compose.

To stop all services, run:

docker-compose down

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📌 Tech Stack Used

✅ Golang (Gin) - API Gateway & User Service
✅ FastAPI - Order Service
✅ Flask - Payment Service
✅ Node.js (Express) - Product Service
✅ Docker & Docker Compose

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🚀 Happy Coding! 🔥