Chapter 4. Securing and Implementing Resilience in .NET Core Applications

Security and resilience are two important aspects that should be considered when developing applications of any scale. Security protects an application's secrets, performs authentication, and provides authorized access to secure content, whereas resiliency embraces the application if it fails so that it can degrade gracefully. Resiliency makes an application highly available and allows the application to function properly at the time when an error occurs or when it is in a faulty state. It is widely used with the microservices architecture, where an application is decomposed into multiple services and each service communicates with other services to perform an operation.

There are various techniques and libraries available in .NET Core that we can use to implement security and resiliency. In ASP.NET Core applications, we can use Identity to implement user authentication/authorization, a popular Polly framework to implement...