Practical ASP.NET Web API

CHAPTER 6

Validating Requests

Chapter 5 covered binding, the process by which the ASP.NET Web API framework maps the incoming HTTP request to the parameters of your action methods. As part of the binding process, ASP.NET Web API runs the validation rules you set against the properties of your model classes—a feature called model validation . The greatest benefit to using model validation instead of having your validation logic in other classes like controllers, helpers, or domain classes is that the validation logic is isolated in one place instead of duplicated in multiple places where it is difficult to maintain. Model validation helps you ...