精通ASP.NET Web API实战

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"Practical ASP.NET Web API 是一本关于如何实际应用ASP.NET Web API进行开发的书籍，旨在帮助读者深入理解和构建高效的Web服务。书中的章节涵盖了从基础构建到高级特性的各个方面，包括调试、媒体类型格式化、响应定制、请求绑定、验证、依赖管理、管道扩展、托管、安全性和性能优化等核心主题。" 本书首先介绍了HTTP协议的重要性，引用了孔子的名言，强调实践在学习过程中的关键作用。通过这本书，读者将能够从实践中学习ASP.NET Web API，这是一种用于构建RESTful服务的强大框架。 Chapter 1：Building a Basic Web API 从基础开始，讲解如何构建一个基本的Web API，涵盖创建控制器、定义路由以及处理HTTP请求等基础知识。 Chapter 2：Debugging and Tracing 讲解了如何调试和跟踪Web API应用程序，以识别和解决潜在的问题。 Chapter 3：Media-Type Formatting CLR Objects 详细介绍了如何格式化CLR对象以适应不同的媒体类型，如JSON或XML，确保跨平台的兼容性。 Chapter 4：Customizing Response 教授如何自定义响应，包括错误处理、自定义状态码和响应头的设置。 Chapter 5：Binding an HTTP Request into CLR Objects 解释了如何将HTTP请求的数据绑定到CLR对象，以便于数据处理。 Chapter 6：Validating Requests 展示了如何实现请求验证，确保入站数据的质量和安全性。 Chapter 7：Managing Controller Dependencies 阐述了如何使用依赖注入来管理控制器的依赖关系，提高代码的可测试性和可维护性。 Chapter 8：Extending the Pipeline 描述了如何扩展Web API的管道，自定义中间件以满足特定需求。 Chapter 9：Hosting ASP.NET Web API 讨论了不同类型的托管选项，如IIS、Self-Host等，以及如何选择和配置它们。 Chapter 10：Securing ASP.NET Web API 专注于Web API的安全性，包括认证、授权策略以及防止常见攻击的方法。 Chapter 11：Consuming ASP.NET Web API 提供了如何作为客户端消费自己或他人构建的Web API的指导。 Chapter 12：Building a Performant Web API 重点关注性能优化，包括缓存、负载均衡和减少延迟的策略。最后，书中的索引方便读者快速查找所需信息。通过这本书，开发者可以深入理解ASP.NET Web API，并将其应用于实际项目，构建高效且可靠的Web服务。

CHAPTER 1 ■ BUILDING A BASIC WEB API

"Id":12346,

"FirstName":"Jane",

"LastName":"Public"

{

"Id":12347,

"FirstName":"Joseph",

"LastName":"Law"

}

]

11. You can also get the details of a specific employee by performing an HTTP GET on

http://localhost:55778/api/employees/12345. In this case, you get the JSON output

shown in Listing 1-7.

Listing 1-7. JSON Output for an Individual Employee

{

"Id":12345,

"FirstName":"John",

"LastName":"Human"

}

12. If you see the preceding two JSON outputs, you have just created your first web API and

exposed the in-memory list of employees to the outside world over HTTP!

Currently, we have tested only the HTTP GET but we will test the other methods in the upcoming exercises.

Note ■ The steps outlined in this exercise are the fundamental steps to create a basic ASP.NET Web API project. In the

rest of the exercises throughout this book, I will not repeat these steps, but you will need to perform them as and when

required to get your project to a point where you can start working on the steps of a specific exercise. Once you have set

up a project, you can reuse it for multiple exercises, and there is no need to create a new project for every exercise.

1.3 Choosing Configuration over Convention

In this exercise, you will override the default behavior of the ASP.NET Web API framework in selecting the action

method of the controller based on the HTTP method. The default convention is to give the action method the same

name as the HTTP method or to name the method so that it starts with the HTTP method. For example, I used Get

in the previous exercise to handle HTTP GET. So the action method can be GetEmployee, or GetAllEmployees, or

GetEmployeeById.

Similarly, the action methods of Post, Put, and Delete will respectively handle HTTP POST, PUT, and DELETE.

Of course, an action method with a weird name such as PutTheLimeInTheCokeYouNut can still be matched by the

ASP.NET Web API framework to handle HTTP PUT because the method name begins with Put, which corresponds

to HTTP PUT. To override this convention, you can apply the AcceptVerbs attribute or use the equivalent shorthand

notation of HttpGet, HttpPost, HttpPut, HttpDelete, and so on.

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