eShop Microservices

This project is a microservices-based e-commerce application built with .NET, demonstrating modern architectural patterns and practices.

🏗 Architecture Overview

The application is decomposed into several autonomous microservices, each focusing on a specific business domain. They communicate via synchronous HTTP (REST/gRPC) and asynchronous messaging (RabbitMQ).

Core Services

• Catalog.API: Manages product catalog (products, brands, types).
  • Tech: .NET 8, PostgreSQL (Marten).
• Basket.API: Handles user shopping carts.
  • Tech: .NET 8, PostgreSQL (Marten), Redis (Distributed Cache).
• Discount.Grpc: Provides discount logic via gRPC.
  • Tech: .NET 8, SQLite.
• Ordering.API: Manages order processing and fulfillment.
  • Tech: .NET 8, SQL Server (EF Core), RabbitMQ (MassTransit).

Infrastructure & Gateways

• YarpApiGateway: A reverse proxy using YARP (Yet Another Reverse Proxy) to route incoming requests to appropriate backend services.
• MessageBroker: RabbitMQ for asynchronous event-driven communication between services.

🚀 Technologies

• .NET 8
• Docker & Docker Compose
• PostgreSQL (Catalog & Basket DBs)
• SQL Server (Ordering DB)
• Redis (Distributed Cache)
• RabbitMQ (Message Broker)
• YARP (API Gateway)
• Marten (Document DB on PostgreSQL)
• MassTransit (Message Bus abstraction)

🛠 Getting Started

Prerequisites

• Docker Desktop

Run the Application

1. Clone the repository.
2. Navigate to the src directory.
3. Run the following command to start all services and infrastructure:

docker-compose up -d

Access Points

Service	Local Port	Container Port
Catalog API	6000, 6060	8080, 8081
Basket API	6001, 6061	8080, 8081
Discount gRPC	6002, 6062	8080, 8081
Ordering API	6003, 6063	8080, 8081
YARP Gateway	6004, 6064	8080, 8081
RabbitMQ Mgmt	15672	15672

📚 References

This project is based on the architecture and concepts from the following course:

• Microservices Architecture and Implementation on .NET