Book Image

Improving your C# Skills

By : Ovais Mehboob Ahmed Khan, John Callaway, Clayton Hunt, Rod Stephens
Book Image

Improving your C# Skills

By: Ovais Mehboob Ahmed Khan, John Callaway, Clayton Hunt, Rod Stephens

Overview of this book

This Learning Path shows you how to create high performing applications and solve programming challenges using a wide range of C# features. You’ll begin by learning how to identify the bottlenecks in writing programs, highlight common performance pitfalls, and apply strategies to detect and resolve these issues early. You'll also study the importance of micro-services architecture for building fast applications and implementing resiliency and security in .NET Core. Then, you'll study the importance of defining and testing boundaries, abstracting away third-party code, and working with different types of test double, such as spies, mocks, and fakes. In addition to describing programming trade-offs, this Learning Path will also help you build a useful toolkit of techniques, including value caching, statistical analysis, and geometric algorithms. This Learning Path includes content from the following Packt products: • C# 7 and .NET Core 2.0 High Performance by Ovais Mehboob Ahmed Khan • Practical Test-Driven Development using C# 7 by John Callaway, Clayton Hunt • The Modern C# Challenge by Rod Stephens
Table of Contents (26 chapters)
Title Page
Copyright and Credits
About Packt
Contributors
Preface
8
What to Know Before Getting Started
17
Files and Directories
18
Advanced C# and .NET Features
Index

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...