Product Service

Overview

The Product Service manages product information and inventory within our microservices architecture.

Key Features

Product creation, updates, and deletions
Inventory management
Event emission for product-related actions
Inventory update on receiving order related events

Technical Stack

Node.js
Express.js
MongoDB
Kafka for event streaming

Setup Instructions

Local Development

Navigate to the product-service directory:
```
cd product-service
```
Install dependencies:
```
npm install
```
Set up environment variables: Create a .env file in the product-service directory and add:
```
PORT=5002
MONGO_URL=mongodb://localhost:27017/product-db
KAFKA_BROKER=localhost:29092
```
Start the service:
```
npm start
```

Docker Deployment

The service is automatically deployed when you run docker-compose up from the root directory. It will be available at http://localhost:5002.

API Endpoints

POST /api/products/create: Create a new product
GET /api/products/getallproducts/all: Get all products
GET /api/products/get/:productId: Get a specific product
PUT /api/products/updateprice/:productId": Update a product price
PUT /api/products/updateinventory/:productId: Update product inventory

Event Communication

This service emits the following Kafka events:

"product-created": When a new product is added
"inventory-updated": When product inventory is updated

This service listens for:

"order-placed": To update inventory when an order is placed