Book Image

Hands-On Microservices with C# 8 and .NET Core 3 - Third Edition

By : Gaurav Aroraa, Ed Price
Book Image

Hands-On Microservices with C# 8 and .NET Core 3 - Third Edition

By: Gaurav Aroraa, Ed Price

Overview of this book

<p>The microservice architectural style promotes the development of complex applications as a suite of small services based on specific business capabilities. With this book, you'll take a hands-on approach to build microservices and deploy them using ASP .NET Core and Microsoft Azure. </p><p>You'll start by understanding the concept of microservices and their fundamental characteristics. This microservices book will then introduce a real-world app built as a monolith, currently struggling under increased demand and complexity, and guide you in its transition to microservices using the latest features of C# 8 and .NET Core 3. You'll identify service boundaries, split the application into multiple microservices, and define service contracts. You'll also explore how to configure, deploy, and monitor microservices using Docker and Kubernetes, and implement autoscaling in a microservices architecture for enhanced productivity. Once you've got to grips with reactive microservices, you'll discover how keeping your code base simple enables you to focus on what's important rather than on messy asynchronous calls. Finally, you'll delve into various design patterns and best practices for creating enterprise-ready microservice applications. </p><p>By the end of this book, you'll be able to deconstruct a monolith successfully to create well-defined microservices.</p>
Table of Contents (16 chapters)

Understanding event communication

The preceding discussion may have left you thinking about how the event being raised, will map the call of the respective microservice perfectly; let's discuss this in further detail. Think of all of the events being raised, as being stored in an event store. The event stored has an associated delegate function, which is called to cater to the respective event. Consider the following diagram:

Although we're showing that the store has just two columns of Event and Function (at the top of the diagram), it stores much more information, such as the details of the publisher and subscriber. Each event contains the complete information that is required to trigger the corresponding service. So, event delegation might be a service to be called or a function within the application itself. It doesn't matter to this architecture.

In other...