WebApiConfig doesn't raise custom method GET

Question

User-425970132 posted

Hi.

I have the following code in ArticlesController

// GET services/articles
        public JObject Get()
        {
            ...
        }

        // GET services/articles/5
        public JObject Get(int id)
        {
            ...
        }

        //GET /services/articles/stores/2
        [System.Web.Http.HttpGet]
        public JObject GetArticlesByStoreId(string id)
        {
            ...
        }

        // POST services/articles
        public void Post([FromBody]Articles value)
        {
            ...
        }

This is the code in WebApiConfig

// Web API routes
            config.MapHttpAttributeRoutes();

            config.Routes.MapHttpRoute(
                name: "DefaultApi",
                routeTemplate: "services/{controller}/{id}",
                defaults: new { id = RouteParameter.Optional }
            );

            config.Routes.MapHttpRoute(
                name: "GetArticlesByStoreIdApi",
                routeTemplate: "services/{controller}/stores/{id}",
                defaults: new { action = "GetArticlesByStoreId", id = RouteParameter.Optional }
            );

When I go to /services/articles/1 it throws "Multiple actions were found that match the request"

How can I do to execute /services/articles/1 and /services/articles/stores/2 without raising the error.

Thank you so much.

Answer 1

User36583972 posted

Hi diegomauricio987,

From your description, you have some wrong in webconfig and get methods.

How can I do to execute /services/articles/1 and /services/articles/stores/2 without raising the error

You can use attribute routing in ASP.NET Web API. The following code for your reference.

ArticlesController:

  // GET services/articles
        [Route("services/articles")]
        public JObject Get()
        {
            
        }

        // GET services/articles/5
        [Route("services/articles/{id}")]
        public JObject Get(int id)
        {
           
        }

        //GET /services/articles/stores/2
        [Route("services/articles/stores/{id}")]
        [System.Web.Http.HttpGet]
        public JObject GetArticlesByStoreId(string id)
        {
            
        }

        // POST services/articles
        [Route("services/articles")]
        public void Post([FromBody]Articles value)
        {
            
        }

WebApiConfig:

public static class WebApiConfig
{
    public static void Register(HttpConfiguration config)
    {
        // Attribute routing.
        config.MapHttpAttributeRoutes();

        // Convention-based routing.
        config.Routes.MapHttpRoute(
            name: "DefaultApi",
            routeTemplate: "api/{controller}/{id}",
            defaults: new { id = RouteParameter.Optional }
        );
    }
}

Attribute Routing in ASP.NET Web API 2:

http://www.asp.net/web-api/overview/web-api-routing-and-actions/attribute-routing-in-web-api-2

Best Regards,

Yohann Lu

Answer 2

User-425970132 posted

Thank you very much Yohann. I am a beginner in WebApi, I spend all day without getting a result. It works perfectly :)