how to route this in mvc web api? - asp.net-web-api

I have this requirement to map the url
api/v1/Contact/12/tags
in the above url the Contact is the controller, and 12 is the contactId and tags is the action is want to be called.
The method is like this
[HttpGet]
public List<TagModel> Tags([FromUri]int contactId)
I have did like this
config.Routes.MapHttpRoute(
name: "RouteForHandlingTags",
routeTemplate: "api/v1/{controller}/{id}/{action}",
defaults: new { },
constraints: new { id = #"\d+" }
);
I am getting the error "No HTTP resource was found that matches the request URI http://localhost:4837/api/v1/contact/12/tags"
I have tried
[HttpGet]
public List<TagModel> Tags(int contactId)
and
config.Routes.MapHttpRoute(
name: "RouteForHandlingTags",
routeTemplate: "api/v1/{controller}/{id}/{action}"
);
But all are giving the same error. But when I do a call like this
api/v1/Contact/12/tags?contactid=12
everything works fine. But this is not what I want. The contactId is specified after contact. Can anyone please tell me how to route this?

The parameter names in your action and route must match.
You can either change your action to:
[HttpGet]
public List<TagModel> Tags(int id)
Or change your route to:
config.Routes.MapHttpRoute(
name: "RouteForHandlingTags",
routeTemplate: "api/v1/{controller}/{contactId}/{action}",
defaults: new { },
constraints: new { id = #"\d+" }
);
Note: you do not need [FromUri] with a primitive type like an int.

Related

custom http route for an API POST without URI parameter

I have a post http without header URI parameters, in the image you can see API
When i call it I get the error
No HTTP resource was found that matches the request URI
I'm trying to add a custom route as this in the config file
config.Routes.MapHttpRoute(
name: "ApiByAction",
routeTemplate: "api/{controller}/{action}",
defaults: null,
constraints: new { action = "accettaTickets" }
);
because the default needs a URI parameter
config.Routes.MapHttpRoute(
name: "DefaultApi",
routeTemplate: "api/{controller}/{action}/{id}",
defaults: new { id = RouteParameter.Optional }
);
but I get the same error.
Can you help me?
Thanks!
I suppose you don't have controller with proper action method for this URL. Try to add such controller with default route configuration.
public class WATicketController : ApiController
{
public IEnumerable<string> accettaTickets()
{
return new string[] { "value1", "value2" };
}
}

How do I set Route attribute in this scenario?

In MVC WEB API using C# and .Net framework 4.5.1 I have a controller name MonitoringController as bellow:
public class MonitoringController : ApiController
{
[HttpGet]
[ActionName("list")]
public IEnumerable<string> List(string collection)
{
return new String[] { "test 1", "test 2" };
}
}
and my routing config is like this:
config.Routes.MapHttpRoute(
name: "DefaultApi",
routeTemplate: "api/{controller}/{action}/{id}",
defaults: new { id = RouteParameter.Optional }
);
config.MapHttpAttributeRoutes();
config.EnsureInitialized();
The api works fine on get requests e.g. http://localhost/api/monitoring/list?collection=test
How do I apply Route attribute to make sure it works on http://localhost/api/monitoring/channels/list?collection=test
What I thought I should do was :
[RoutePrefix("api/monitoring")]
public class MonitoringController : ApiController
{
[HttpGet]
[Route("channels")]
[ActionName("list")]
public IEnumerable<string> List(string collection)
{
return new String[] { "test 1", "test 2" };
}
}
I cannot get http://localhost/api/monitoring/channels/list?collection=test working! What have I done wrong?
I want to be able to have the following routes defined in the controller:
/api/monitoring/channels/list
/api/monitoring/windows/list
/api/monitoring/doors/list
Thanks for your help
Try flipping the order in which you register the routes:
config.MapHttpAttributeRoutes();
config.Routes.MapHttpRoute(
name: "DefaultApi",
routeTemplate: "api/{controller}/{action}/{id}",
defaults: new { id = RouteParameter.Optional }
);
And also change [Route("channels")] to [Route("channels/list")] and dump the ActionName attribute.
Better still, don't mix the two approaches and go attribute routing throughout.
If you want the collection to be part of the route use a route parameter.
[Route("{collection}/list")]
See http://www.asp.net/web-api/overview/web-api-routing-and-actions/attribute-routing-in-web-api-2

How do i redirect when version number is not included in url (Url Web Api Versioning)

i have this route attribute in my api controller "[RoutePrefix("api/v5/test")]". I want to allow my api to be consumed without specifying the version no. If no version no is included in url, then server will redirect request to latest api version. How can i do this?
/api/v1/products
config.Routes.MapHttpRoute(
name: "V1Api",
routeTemplate: "api/v1/products",
defaults: new { controller = V1_Products }
);
/api/v2/products
config.Routes.MapHttpRoute(
name: "V2Api",
routeTemplate: "api/v2/products",
defaults: new { controller = V2_Products }
);
/api/products
config.Routes.MapHttpRoute(
name: "DefaultApi",
routeTemplate: "api/products",
defaults: new { controller = V2_Products }
);
There is no way to add multiple RoutePrefix's on a controller.
One possible solution is to add multiple routes for each method. You can use '~' to specify the absolute path and ignore the RoutePrefix for the controller.
Example:
[RoutePrefix("api/v5/test)]
public class TestV5Controller : ApiController
{
[Route("{id}")]
[Route("~/api/latest/test/{id}")]
[HttpGet]
public IHttpResult Get()
{
return Ok("Hello World");
}
}

Custom routing for GET/POST/DELETE does not match

What I'm trying to do is to use similar route template in my custom route as the default route template uses, but getting 405 - METHOD NOT ALLOWED.
First one matches the GET request # api/accounts/abc123/contacts but that's about it. Other two don't match, where as the default route # api/{controller}/{id} matches all four verbs.
EDIT: Updated route definitions
config.Routes.MapHttpRoute(
name: "DefaultApi",
routeTemplate: "api/{controller}/{id}",
defaults: new { id = RouteParameter.Optional }
);
config.Routes.MapHttpRoute(
name: "ContactsApi",
routeTemplate: "api/{controller}/{id1}/contacts"
);
config.Routes.MapHttpRoute(
name: "AddressesApi",
routeTemplate: "api/{controller}/{id2}/addresses"
);
config.Routes.MapHttpRoute(
name: "CoverageApi",
routeTemplate: "api/{controller}/{id3}/coverage"
);
config.Routes.MapHttpRoute(
name: "AccountsApi",
routeTemplate: "api/{controller}/{id4}/accounts"
);
I'm trying to map above routes to below actions:
EDIT: Updated with {id1} parameter as per above route definition.
[HttpGet]
public List<Contact> GetContacts(string id)
{
return accounts.GetContacts(id);
}
[HttpPost]
public void PostContacts(string id1, [FromBody]IEnumerable<Contact> contacts)
{
bool success = accounts.AssignContacts(id, contacts);
}
[HttpDelete]
public void DeleteContacts(string id1, [FromBody]IEnumerable<Contact> contacts)
{
bool success = accounts.RemoveContacts(id, contacts);
}
I just want to keep my routes consistent...
You only need to have the one route to match the actions given above:
config.Routes.MapHttpRoute(
name: "ApiContacts",
routeTemplate: "api/{controller}/{id}/contacts"
);
Because your actions start with the relevant http verb, the corresponding action will be called.

Asp.net Web API : No action was found on the controller

I am using Visual Studi0 2010. In my WebApiConfig.cs file I have below config, I can map these two urls /Values and /Values/1. It is working fine.
config.Routes.MapHttpRoute(
name: "DefaultApi",
routeTemplate: "api/{controller}/{id}",
defaults: new {id= RouteParameter.Optional }
);
Since I wanted to my custom URL like /Values/Machines and /Values/Machines/100, I changed above setting to below.
config.Routes.MapHttpRoute(
name: "DefaultApi",
routeTemplate: "api/{controller}/{action}/{id}",
defaults: new {action="get", id= RouteParameter.Optional }
);
It is now mapping below urls except this one, /Values/1. Please let me know what I am missing.
1./Values
2./Values/Machines
3./Values/Machines/100
Thanks.
It is expected behavior. According to your new Route the first parameter Values is expected to be a Controller name, and second parameter 1 is expected to be an Action, but you don't have an action with the name 1
In order to get to the Action you need the url with you new route should be like so: /Values/Index/1
You could do something like this:
routes.MapRoute(
name: "IndexWithParam",
url: "{controller}/{id}",
defaults: new { controller = "Home", action = "Index", id = UrlParameter.Optional },
constraints: new { id = #"\d+" }
);
routes.MapRoute(
name: "Default", // Route name
url: "{controller}/{action}/{id}", // URL with parameters
defaults: new { controller = "Home", action = "Index", id = UrlParameter.Optional }
);
In this case if the Url is like this: /Values/1, it will hit first route and redirect it to /Values/Index/1. Note that I've placed a constraint on this route that makes sure that second parameter is a number.

Resources