E-commerce Microservices Application

Overview

This is an e-commerce application built using microservices architecture with Spring Boot. The application consists of the following microservices:

• Order Service
• Payment Service
• Product Service
• Customer Service
• Notification Service

Each microservice has its own independent database and runs inside a Docker container. The microservices communicate with each other using Feign Client, RestTemplate, and Kafka for asynchronous messaging.

Microservices

Order Service

• Manages orders and communicates with the Payment and Customer services.
• Uses Feign Client and RestTemplate for inter-service communication.
• Produces messages to Kafka for order processing events.

Payment Service

• Handles payment transactions.
• Produces messages to Kafka for payment events.

Product Service

• Manages product information.

Customer Service

• Manages customer information.

Notification Service

• Consumes messages from Kafka for order and payment events.
• Sends notifications via email.

Architecture

Communication

• Feign Client and RestTemplate are used for synchronous communication between services.
• Kafka is used as an asynchronous message broker. The Order and Payment services produce messages, and the Notification service consumes these messages.

Configuration

• Config Server: Microservices fetch their database and Kafka configurations from the Config Server.

Service Discovery

• Eureka Discovery Server: Provides service discovery. Each microservice registers with the Eureka server, allowing them to discover and communicate with each other.

API Gateway

• API Gateway: Routes incoming requests to the appropriate microservice based on the request path.

Distributed Log Tracing

• Zipkin: Used for distributed log tracing, allowing tracking of requests as they propagate through the microservices.