MVC Attribute Routing Not Working

Question

I'm relatively new to the MVC framework but I do have a functioning Web Project with an API controller that utilizes AttributeRouting (NuGet package) - however, I'm starting another project and it just does not want to follow the routes I put in place.

Controller:

public class BlazrController : ApiController {     private readonly BlazrDBContext dbContext = null;     private readonly IAuthProvider authProvider = null;      public const String HEADER_APIKEY = "apikey";     public const String HEADER_USERNAME = "username";      private Boolean CheckSession()     {         IEnumerable<String> tmp = null;         List<String> apiKey = null;         List<String> userName = null;          if (!Request.Headers.TryGetValues(HEADER_APIKEY, out tmp)) return false;         apiKey = tmp.ToList();          if (!Request.Headers.TryGetValues(HEADER_USERNAME, out tmp)) return false;         userName = tmp.ToList();          for (int i = 0; i < Math.Min(apiKey.Count(), userName.Count()); i++)             if (!authProvider.IsValidKey(userName[i], apiKey[i])) return false;          return true;     }      public BlazrController(BlazrDBContext db, IAuthProvider auth)     {         dbContext = db;         authProvider = auth;     }      [GET("/api/q/users")]     public IEnumerable<string> Get()     {          return new string[] { "value1", "value2" };     }      [GET("api/q/usersauth")]     public string GetAuth()     {         if (!CheckSession()) return "You are not authorized";          return "You are authorized";     } } 

AttributeRoutingConfig.cs

public static class AttributeRoutingConfig {     public static void RegisterRoutes(RouteCollection routes)      {             // See http://github.com/mccalltd/AttributeRouting/wiki for more options.         // To debug routes locally using the built in ASP.NET development server, go to /routes.axd          routes.MapAttributeRoutes();     }      public static void Start()      {         RegisterRoutes(RouteTable.Routes);     } } 

Global.asax.cs:

// Note: For instructions on enabling IIS6 or IIS7 classic mode, // visit http://go.microsoft.com/?LinkId=9394801

public class WebApiApplication : System.Web.HttpApplication {     protected void Application_Start()     {         AreaRegistration.RegisterAllAreas();          WebApiConfig.Register(GlobalConfiguration.Configuration);         FilterConfig.RegisterGlobalFilters(GlobalFilters.Filters);         RouteConfig.RegisterRoutes(RouteTable.Routes);         BundleConfig.RegisterBundles(BundleTable.Bundles);     } } 

When I try to navigate to /api/q/users - I get a 404 not found error. If I change the routes to be "/api/blazr/users" - I get an error about multiple actions and not being able to determine which action to take.

Any help is appreciated - I really just need a small nudge to figure out where the issue is, no need to solve it completely for me (I need to learn!)

Thanks

EDIT

routes.axd:

api/{controller}/{id} {resource}.axd/{*pathInfo}           {controller}/{action}/{id} 

Answer 1

Not only do you have to have the call to routes.MapMvcAttributeRoutes() in your App_Start\RouteConfig.cs file, it must appear before defining your default route! I add it before that and after ignoring {resource}.axd{*pathInfo}. Just found that out trying to get attribute routing to work correctly with my MVC 5 website.

    public static void RegisterRoutes(RouteCollection routes)     {         routes.IgnoreRoute("{resource}.axd/{*pathInfo}");          routes.MapMvcAttributeRoutes();          routes.MapRoute(                 name: "Default",                 url: "{controller}/{action}/{id}",                 defaults: new { controller = "Account", action = "Index", id = UrlParameter.Optional }         );      } 

Answer 2

In your App_Start/RoutesConfig.cs

make sure you call the following line of code:

  routes.MapMvcAttributeRoutes();