What are API parameters in ASP.NET?

What are API parameters in ASP.NET?

API parameters in ASP.NET are used to pass data to your API methods. They can be query parameters, route parameters, or body parameters.

Can you give me an example of each type of parameter?

Sure! A query parameter might look like this: /api/products?category=books. A route parameter could be /api/products/{id}, and a body parameter is typically sent in the request body as JSON.

How do I access these parameters in my controller?

You can access query parameters using the Request.Query collection, route parameters with the method parameters directly, and body parameters by binding them to a model in your action method.

What if I want to validate these parameters?

You can use data annotations for model validation or implement custom validation logic in your controller methods.