There are a couple of microservices that implemented e-commerce modules over Authentication, Catalog, Cart, Discount and Ordering microservices with NoSQL (MongoDB, Redis) and Relational databases (PostgreSQL, SQL Server) with communicating over RabbitMQ Event-Driven Communication and using Ocelot API Gateway.

What Includes In This Repository

Authentication Microservice

• .NET 8 Core Web API application, Following REST API principles.
• Implementented .NET Identity.
• Authentication implementation using JWT Bearer Token.
• Used Sql Server as Database.
• Cross-cutting concerns Logging and global Exception Handling.

Catalog Microservice

• .NET 8 Core Web API application, Following REST API principles, CRUD.
• Used Repository Pattern for CRUD operation.
• Used MongoDb as Database.
• Cross-cutting concerns Logging and global Exception Handling.
• Secure access through JWT-based authentication.

Cart Microservice

• .NET 8 Core Web API application, Following REST API principles, CRUD.
• Using Redis as a Distributed Cache over CartDb.
• Consume Discount Grpc Service for inter-service sync communication to calculate product final price.
• Publish CartCheckOutEvent Queue with using MassTransit and RabbitMQ.
• Secure access through JWT-based authentication.

Discount Microservice

• .NET Grpc Server application.
• Build a Highly Performant inter-service gRPC Communication with Cart Microservice.
• Exposing Grpc Services with creating Protobuf messages.
• Using Dapper as ORM.
• PostgreSql Database connection and containerization.
• Secure access through JWT-based authentication.

Microservices Communication

• Sync inter-service gRPC Communication.
• Implemented authentication and authorization in gRPC using JWT-based authentication.
• Async Microservices Communication with RabbitMQ Message-Broker Service.
• Using RabbitMQ Publish/Subscribe Fanout Exchange Model.
• Using MassTransit for abstraction over the RabbitMQ Message-Broker system.
• Publishing CartCheckOutEvent event queue from Cart microservices and Subscribing this event from Ordering microservices.

Ordering Microservice

• .NET 8 Core Web API application, Following REST API principles, CRUD
• Implementing CQRS, and Clean Architecture with using Best Practices.
• Developing CQRS using MediatR, FluentValidation, and AutoMapper packages.
• Consuming RabbitMQ CartCheckOutEvent event queue with using MassTransit-RabbitMQ Configuration.
• SqlServer Database connection and containerization.
• Using Dapper as ORM and Stored Procedure to provide advanced database functionality.

Ocelot API Gateway Microservice

• Develop API Gateways with Ocelot API Gateway applying Gateway Routing Pattern.
• Ocelot API Gateway Configuration; Route, Rate Limiting, Caching, Authentication and Authorization.