Book Image

Building Microservices with .NET Core 2.0 - Second Edition

By : Gaurav Aroraa
Book Image

Building Microservices with .NET Core 2.0 - Second Edition

By: Gaurav Aroraa

Overview of this book

The microservices architectural style promotes the development of complex applications as a suite of small services based on business capabilities. This book will help you identify the appropriate service boundaries within your business. We'll start by looking at what microservices are and their main characteristics. Moving forward, you will be introduced to real-life application scenarios; after assessing the current issues, we will begin the journey of transforming this application by splitting it into a suite of microservices using C# 7.0 with .NET Core 2.0. You will identify service boundaries, split the application into multiple microservices, and define service contracts. You will find out how to configure, deploy, and monitor microservices, and configure scaling to allow the application to quickly adapt to increased demand in the future. With an introduction to reactive microservices, you’ll strategically gain further value to keep your code base simple, focusing on what is more important rather than on messy asynchronous calls.
Table of Contents (11 chapters)

Security in microservices

Now let's look at the case of microservices. By nature, microservices are distributed systems. There is not a single instance of an application; rather, there are several distinct applications that coordinate with each other in harmony to produce the desired output.

Why won't a traditional .NET auth mechanism work?

One of the possible approaches for microservice security might be this: we mimic the same behavior as that of the auth layer in a monolith. This could be depicted as follows:

In this approach, we distributed the auth layer and provided it to all the microservices. Since each one is a different application, it will need its own auth mechanism. This inherently means that the user...