Book Image

Clean Code in C#

By : Jason Alls
Book Image

Clean Code in C#

By: Jason Alls

Overview of this book

Traditionally associated with developing Windows desktop applications and games, C# is now used in a wide variety of domains, such as web and cloud apps, and has become increasingly popular for mobile development. Despite its extensive coding features, professionals experience problems related to efficiency, scalability, and maintainability because of bad code. Clean Code in C# will help you identify these problems and solve them using coding best practices. The book starts with a comparison of good and bad code, helping you understand the importance of coding standards, principles, and methodologies. You’ll then get to grips with code reviews and their role in improving your code while ensuring that you adhere to industry-recognized coding standards. This C# book covers unit testing, delves into test-driven development, and addresses cross-cutting concerns. You’ll explore good programming practices for objects, data structures, exception handling, and other aspects of writing C# computer programs. Once you’ve studied API design and discovered tools for improving code quality, you’ll look at examples of bad code and understand which coding practices you should avoid. By the end of this clean code book, you’ll have the developed skills you need in order to apply industry-approved coding practices to write clean, readable, extendable, and maintainable C# code.
Table of Contents (17 chapters)

Testing our API key security

In this section, we are going to test our API key authentication and authorization using Postman. Add a class to your Controllers folder called DividendCalendar. Update the class as follows:

[ApiController]
[Route("api/[controller]")]
public class DividendCalendar : ControllerBase
{
[Authorize(Policy = Policies.Internal)]
[HttpGet("internal")]
public IActionResult GetDividendCalendar()
{
var message = $"Hello from {nameof(GetDividendCalendar)}.";
return new ObjectResult(message);
}

[Authorize(Policy = Policies.External)]
[HttpGet("external")]
public IActionResult External()
{
var message = "External access is currently unavailable.";
return new ObjectResult(message);
}
}

This class will contain all of our dividend calendar API code functionality. Even though external code will not be used in this initial release of our minimum viable...