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I have made a MVC 5 project and created an MVC app. Now I wan't to have an API for some of the methods and decided to create a regular web API controller. I look in the routes and they look like this default:

 public static void Register(HttpConfiguration config) { config.MapHttpAttributeRoutes(); config.Formatters.JsonFormatter.SerializerSettings.ContractResolver = new CamelCasePropertyNamesContractResolver(); config.Routes.MapHttpRoute( name: "DefaultApi", routeTemplate: "api/{controller}/{id}", defaults: new { id = RouteParameter.Optional } ); }

By that I would mean that if I go to my localhost and say localhost/api/events then I would get the results.

Here I have my controller:

 [HttpGet] public IEnumerable<Event> GetAllEvents() { IEnumerable<Event> events = db.Events.ToList(); return events; }

I haven't done anything else that creating those. No matter what I do when I call: 

http://localhost:29869/api/events

Then I get 404 like there is nothing on that route. At this moment am I just up for getting it to work.

My Global.asax looks like this:

 protected void Application_Start() { AreaRegistration.RegisterAllAreas(); FilterConfig.RegisterGlobalFilters(GlobalFilters.Filters); RouteConfig.RegisterRoutes(RouteTable.Routes); BundleConfig.RegisterBundles(BundleTable.Bundles); Database.SetInitializer<ApplicationDbContext>(null); GlobalConfiguration.Configure(WebApiConfig.Register); }

After changing the Global.asax then I get this message:

<Error> <Message>An error has occurred.</Message> <ExceptionMessage> The object has not yet been initialized. Ensure that HttpConfiguration.EnsureInitialized() is called in the application's startup code after all other initialization code. </ExceptionMessage> <ExceptionType>System.InvalidOperationException</ExceptionType> <StackTrace> ved System.Web.Http.Routing.RouteCollectionRoute.get_SubRoutes() ved System.Web.Http.Routing.RouteCollectionRoute.GetRouteData(String virtualPathRoot, HttpRequestMessage request) ved System.Web.Http.WebHost.Routing.HttpWebRoute.GetRouteData(HttpContextBase httpContext) </StackTrace> </Error>
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2 Answers 2

Reset to default
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you can refer to Ian Mercer and gentiane's anwser in Ensure that HttpConfiguration.EnsureInitialized() if you have no port conflict.

hope it helps.

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Change your action to

[HttpGet] public IEnumerable<Event> Get() { IEnumerable<Event> events = db.Events.ToList(); return events; }

This should work, also you can use attribute routing to add the specific route you would like to hit the action I.e.

[HttpGet] [Route("/Events")] public IEnumerable<Event> GetAllEvents() { IEnumerable<Event> events = db.Events.ToList(); return events; }

What's the name of your controller, the default route will find the controller and then select the action that matches the http verb (get) and any parameters, in your case no parameters so localhost:29869/api/Events will call the get prefixed method from the EventsController . The route attribute will allow you to specify the url that will select the action so [Route("api/Events")] will map localhost:29869/api/Events to the action.

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For some reason this doesn't work. I have tried this but it still gives a 404
Change order of config changes to above
See the new change that has happened after I changed the config
Revert the config change, did you try the route attribute
Are you sure the port is 29869 for your application? It can change sometimes through the course of development.
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