Prevent Web API method from being called

Question

I am working on creating a Web API using ASP.NET Web API. I'm currently stubbing out functionality on my endpoints so that I can then start developing against it. My WebApiConfig.cs file looks like this: ``` config.Routes.MapHttpRoute( name: "DefaultApi", routeTemplate: "api/{controller}/{id}", defaults: new { id = RouteParameter.Optional } ); config.Routes.MapHttpRoute( name: "ActionAPI", routeTemplate: "api/{controller}/{id}/{action}", defaults: new { action = RouteParameter.Optional } ); ``` In my UsersController.cs file I have these methods: ``` //Maps to /Users endpoint [HttpGet] public IEnumerable GetAllUsers() { //Code } //Maps to /Users/{id} endpoint [HttpGet] public User GetUser(int id) { //Code } //Maps to /Users/{id}/Enrollments endpoint [HttpGet, ActionName("Enrollments")] public IEnumerable GetUserEnrollments(int id) { //Code } //Maps to /Users/{id}/Enrollments/{id} [HttpGet, ActionName("Enrollments")] public IEnumerable GetUserEnrollment(int…

Accepted Answer

After reviewing your post again, I think that you are not looking at the error correctly.

Because of the way you have your controller configured, there is an ambiguous route.

Multiple actions were found that match the request:

GetUser(Int32) on type Byui.ILearnAPI2.API.Controllers.UsersController

GetUserEnrollments(Int32) on type Byui.ILearnAPI2.API.Controllers.UsersController

GetUser and GetUserEnrollments share the same route. From what I can tell GetUser is not going to work if you pass it an int or a string or whatever, because it does not know how to resolve properly.

You can add a route config before your default to resolve the issue.

```
config.Routes.MapHttpRoute(
    name: "GetUsers",
    routeTemplate: "api/users/{id}",
    defaults: new { controller = "Users", action = "GetUser" }
);
```

Prevent Web API method from being called

Solution

Problem