Event-Driven Microservice Architecture

Microservices implemented using:

• ASP.NET Core Web API
• RabbitMQ
• Ocelot API Gateway
• SQL Server
• MangoDB
• Redis
• Docker

Architecture overview

The ECommerce system is using a microservice oriented architecture with autonomous microservices (each one owning its own data/db) and implementing different approaches within each microservice (simple CRUD vs. DDD/CQRS patterns) using HTTP as the communication protocol between the client apps and the microservices and supports asynchronous communication for data updates propagation across multiple services based on Integration Events and an Event Bus (RabbitMQ).

Components overview

Catalog microservice:

• ASP.NET Core Web API application
• REST API principles, CRUD operations
• Mongo DB NoSQL database connection on docker

Basket microservice:

• ASP.NET Core Web API application
• REST API principles, CRUD operations
• Redis connection as a Database on docker

RabbitMQ messaging library:

• Base EventBus implementation

Prerequirements

• Visual Studio 2019
• .NET Core 3.0.1 SDK
• Docker Desktop

How to run the solution

1. Clone the repository
2. At the root directory which include docker-compose.yml files, run the command:

docker-compose -f docker-compose.yml -f docker-compose.override.yml up –d

4. Launch microservices:

• RabbitMQ: http://localhost:15672/
• Catalog API: http://localhost:8000/swagger/index.html
• Basket API: http://localhost:8001/swagger/index.html