Microservices Architecture

Solution Architecture

Technologies used in the solution

Sample e-commerce solution uses a host of technologies to create multiple microservices along with inter-services synchronous communication, inter-services asynchronous communication, Clean Architecture, Event Driven Architecture using Message Broker, following Api Gateway, Aggregator, CQRS and MediatR patterns.

Below are the detailed technologies used in the solution -

• .Net Core
• Docker
• Ocelot Api Gateway
• MongoDB
• Redis Cache
• PostgreSQL
• SQL Server
• RabbitMQ
• MassTransit
• gRPC
• RESTful Api
• Message Broker
• MediatR
• Dapper
• Entity Framework Core
• Microservices Architecture
• Event Driven Architecture
• CQRS pattern (Command and Query Responsibility Segregation)
• Mediator pattern

Microservices created as part of e-commerce solution

• Catalog microservice
  • Uses containerized MongoDB image
• Basket microservice
  • Uses containerized Redis Cache image
  • Calls Discount microservice for inter-service synchronous gRPC communication
  • Uses RabbitMQ and MassTransit for inter-service asynchronous communication to communicate with Ordering microservice
• Discount microservice
  • Uses containerized PostgreSQL image
  • Called by Basket microservice for inter-service synchronous gRPC communication
• Ordering microservice
  • Uses containerized SQL Server image
  • Uses RabbitMQ and MassTransit for inter-service asynchronous communication to communicate with Basket microservice
• Ocelot API Gateway microservice
  • Implements Api Gateway pattern for all communication between Catalog/Basket/Ordering microservices and outside world
• Shopping.Aggregator microservice
  • Implements Gateway Aggregator pattern that aggregate calls to multiple microservices like Catalog/Basket/Ordering
• ShoppingWebApp
  • Implements the front-end client application
  • Interacts with Ocelot Api Gateway for communicating with microservices

References

• Original repository: https://github.com/aspnetrun/run-aspnetcore-microservices
• Portainer: https://docs.portainer.io/v/ce-2.11/start/intro
• pgAdmin: https://hub.docker.com/r/dpage/pgadmin4
• Microsoft SQL Server: https://hub.docker.com/_/microsoft-mssql-server
• Rabbitmq: https://hub.docker.com/_/rabbitmq