I'm new with attribute routing with aspnet web api. Thiago Custodio Thiago Custodio KiranChalla api is the default prefix. Active Oldest Votes. There is a bug in the web api routing with MVC 4 and 4. TheAlbear TheAlbear 5, 7 7 gold badges 45 45 silver badges 77 77 bronze badges.
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The dark mode beta is finally here. Change your preferences any time. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. You have to call MapHttpAttributeRoutes so that the Framework will be able to walk through your attributes and register the appropriate routes upon application start:.
See MSDN. Check your Route attribute's namespace. It should be System. Http instead of System. Verify that you are using System. RouteAttribute and not System. And it works perfectly. Also you need config. MapHttpAttributeRoutes ; in webapiconfig.
Learn more. Asked 5 years, 2 months ago. Active 3 years, 3 months ago. Viewed 16k times. I've the following problem, my route attribute is not working. EDIT : My route configuration config. BendEg BendEg Did you call config. MapHttpAttributeRoutes ;? If you create an answer, i will accept it, thankl you! Active Oldest Votes. I'm not following how this class is actually called? How would you call this in the global. I don't get where HttpConfiguration comes from.
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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!
Routing to controller actions in ASP.NET Core
Not only do you have to have the call to routes. Just found that out trying to get attribute routing to work correctly with my MVC 5 website. I came here looking for answers related to RoutePrefix. After some testing, I found that simply adding a. Simply add it via NuGet, which will add a line to your appsettings, and then all your routes are displayed at the bottom of your page.
Highly recommend for any routing issues. Learn more.Routing in ASP NET Core MVC
Asked 6 years, 10 months ago. Active 10 months ago. Viewed 31k times. ToList ; if! Min apiKey. CountuserName. Register GlobalConfiguration. Configuration ; FilterConfig. RegisterGlobalFilters GlobalFilters. Filters ; RouteConfig. RegisterRoutes RouteTable. Routes ; BundleConfig. RegisterBundles BundleTable. Thanks EDIT routes.
Teagan42 Teagan42 1 1 gold badge 5 5 silver badges 10 10 bronze badges. When I break the application on the MapAttributeRoutes - the route collection comes back with 0 routes I got the routes to show up in routes. Please, tell us how you fixed it. I updated the question. Active Oldest Votes.
MapMvcAttributeRoutes ; routes. Derreck Dean Derreck Dean 3, 1 1 gold badge 21 21 silver badges 42 42 bronze badges. This worked for me. Not sure why the dummies at microsoft can't document this simple thing.
However, if I use a query string, it fails, telling me that that path does not exist. I have tried adding the following to my WebApiConfig. I've removed the second Action altogether and now trying to use just a singular Action with optional parameters.
Query strings are behaving the same way as before. I was facing the same issue of 'How to include search parameters as a query string? After googling, the following is working fine for me:.
After much painstaking fiddling and Googling, I've come up with a 'fix'. All I did was add [Route "" ] in addition to the route attributes I was already using. Assigning a value will allow it to be optional so you do not have to include it and it will pass the value to specify. I just re-read the question and I see that you have 2 Get verbs with the same path, I believe this would cause conflict as routing would not know which one to utilize, perhaps using the optional params will help.
You can also specify one can be null and do checking in the method as to how to proceed. Optional parameters and default values You can specify that a parameter is optional by adding a question mark to the parameter, that is:. Currently, a default value must be specified on the optional parameter for action selection to succeed, but we can investigate lifting that restriction. Please let us know if this is important.
The optional parameter '? Just a side note from my part as well. In order for queryString params to work, you need to provide a default value for your method parameters to make it optional.
Just as you would also do when normally invoking a C method. Writing this answer as this should be top answer and best way. Here's a slight deviant of bhargav kishore mummadireddy's answer, but an important deviation. His answer will default the querystring values to an actual non-empty value. This answer will default them to empty. It allows you to call the controller through path routing, or using the querystring. Essentially, it sets the default value of the querystring to empty, meaning it will always be routed.
This was important to me, because I want to return Bad Request if a querystring is not specified, rather than having ASP.Clearly, something is wrong. AKA, the default route. Culturally, we need more routes. What are routes anyway? URL templates. And URLs are a way to identify resources. The main part of the URL is the path. The path represents a resource hierarchy. A hierarchy is used for organization. Naming identification and organization are essential in any information system.
Bigger app means more resources to organize, hence the need of a deeper hierarchy. MVC 2 introduced a feature called Areas. This is not only about having an additional level in your resource hierarchy, it also attempts to provide a better organization of your codebase. Areas are like sub-projects inside your main project, they have their own Views directory and stuff. Technically, areas work. If conventional routes are too rigid you can always use custom routes.
You decide exactly how to design your resource hierarchy, and how to organize your codebase. Win-win, right? NET Routing is actually a very flexible system, I like it a lot. So, when I say ASP.
And that integration is very simplistic. All MVC does is take values for controller and action, and optionally a namespace in case there are two controllers with the same name, and with that it finds the controller and invokes the action. This happens when one URL can be matched by more than one route. There are two solutions to this problem:.
If a parameter should only match a limited set of values you can add a constraint for that parameter. Out of the two solutions adding more constraints is the most robust. Ideally one URL should only be match by a single route, thus avoiding any ambiguities. There are visual tools like Route Debugger and Glimpse. Others suggest unit testing your routes.
If you have issues with URL generation some suggest you use names for all your routes :. Use names for all your routes and always use the route name when generating URLs. Most of the time, letting routing sort out which route you want to use to generate an URL is really leaving it to chance. When generating an URL, you generally know exactly which route you want to link to, so you might as well specify it by name.
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I'm trying to redirect to the Details Action which uses a custom route defined using the new Attribute Routing feature. You are probably combining convention based routing with attribute routing, and you should register your areas after you map the attribute routes. If you are using both Areas with route attributes, and areas with convention based routes set by an AreaRegistration classthen you need to make sure that area registration happen after MVC attribute routes are configured, however before the default convention-based route is set.
When you create a blank asp. Perhaps you do not intend to keep using convention based routing and prefer to only use attribute routing. In this case you can just delete the FormsAreaRegistration. Moving the AreaRegistration. RegisterAllAreas to RouteConfig. I also needed to use the AreaPrefix parameter for the RouteArea attibute:.
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Understanding Attribute Routing in ASP.NET MVC
Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. I have visual studio installed with mvc4 using. Now I want to use webapi2 with attribute writing and i want my hlep page show all the endpoints properly. In my solution i added a new mvc4 base emtpy project and using nuget i upgraded to mvc5 and then i have installed webapi2 packages.
Based on your information, it looks like you are not calling the httpConfig. MapHttpAttributeRoutes Make sure to call this before any traditional routing registrations. Note the order of Web API configuraton below:. I had this problem too and after a long search I realized that I was using System.
RouteAttribute instead of System. RouteAttribute After correcting this and using config. MapHttpAttributeRoutes everything worked fine.
This was not your case as is apparent from your sample codebut please do remember to end the Controller class name with Controller. This question already has a selected answer. But I had a different solution for myself and think it would be helpful to reply if the selected answer doesn't help.
For me it was a silly mistake. I had two controllers but only one was working. The solutions was that my controller class was named improperly! Be sure your controller class ends in Controller. The trailing s got me! Make sure you don't have two controllers with the same name! I was moving some controllers from one assembly I was throwing away into the website The route discovery process then seemed to fail silently when it came across two occurrences of the same controller!
Learn more. Asked 6 years, 5 months ago. Active 1 year, 2 months ago. Viewed 44k times. Active Oldest Votes. Kiran Challa Kiran Challa 51k 12 12 gold badges silver badges bronze badges. MapHttpAttributeRoutes ; config.
Ensure that HttpConfiguration. EnsureInitialized is called in the application's startup code after all other initialization code. Right, that error message is expected and you would need to change your existing call of WebApiConfig.