Design Microservices Architecture with Patterns and Principles - Ordering Microservices Code Review - E-Commerce App

The video tutorial covers the implementation of ordering API microservices in an ecommerce application using ASP.NET Core. It discusses the use of Domain Driven Design, CQRS, and Clean Architecture patterns. The tutorial explains the integration of RabbitMQ for event handling and SQL Server for database operations. It also explores the folder structure of the application, highlighting the clean architecture layers. A specific use case of handling basket checkout events is demonstrated, showcasing the use of the Mediator library for CQRS implementation.

What design patterns are implemented in the ordering API microservices?

• Model-View-Controller and Singleton

• Observer and Factory

• Domain Driven Design, CQRS, and Clean Architecture

• Decorator and Strategy

Which library is used for implementing CQRS in the microservices?

• Entity Framework Core

• Mediator

• Fluent Validation

• AutoMapper

What is the role of RabbitMQ in the ordering API?

• To consume basket checkout events

• To handle payment processing

• To manage user authentication

• To store order data

Which tool is used for database operations in the ordering API?

• SQLite

• MongoDB

• MySQL

• Entity Framework Core

What is the purpose of the Infrastructure layer in Clean Architecture?

• To provide security features

• To integrate with external modules and databases

• To manage business logic

• To handle user interface design

How does the application handle incoming events from RabbitMQ?

• By using a custom event handler

• Through the Mediator library

• With a direct database connection

• Using a third-party API

What is the first step in the ordering process after consuming an event?

• Notifying the user interface

• Creating a new item in the ordering database

• Logging the event details

• Sending a confirmation email