unable to get webapi result with parameter  [Answered]RSS

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  SaMolPP

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  unable to get webapi result with parameter

  Apr 25, 2019 12:50 PM|SaMolPP|LINK

  am very new to webapi--

  i went to this article https://www.c-sharpcorner.com/article/create-simple-web-api-in-asp-net-mvc/ and tried to create the web api with VS 2017, and am getting the correct results

  when i typed, http://localhost:8787/api/Home/get 

  it returns the string .

  but when i passed the same http://localhost:8787/api/Home/5  

  with paramater , it didnt give me the accurate results.

  using System;
  using System.Collections.Generic;
  using System.Linq;
  using System.Web;
  using System.Web.Http;
  using System.Web.Mvc;

  namespace DemoWebAppi2.Controllers
  {
  public class HomeController : ApiController
  {
  public string Get()
  {
  return "Welcome to web api";
  }

  public List<string> GetWithID(int mid)
  {
  return new List<string> { "string1", "string2" };
  }
  }
  }

  above is my code:

  routeconfig file:

  using System;
  using System.Collections.Generic;
  using System.Linq;
  using System.Web;
  using System.Web.Mvc;
  using System.Web.Routing;

  namespace DemoWebAppi2
  {
  public class RouteConfig
  {
  public static void RegisterRoutes(RouteCollection routes)
  {
  routes.IgnoreRoute("{resource}.axd/{*pathInfo}");

  routes.MapRoute(
  name: "Default",
  url: "{controller}/{action}/{id}",
  defaults: new { controller = "Home", action = "Index", id = UrlParameter.Optional }
  );
  }
  }
  }

  pls help, how to pass the url and get the accurate results ? i have not changed anything in the routeconfig file. i created this using  VS 2017 

• • Reply
  mgebhard

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  Re: unable to get webapi result with parameter

  Apr 25, 2019 01:05 PM|mgebhard|LINK

  Unclear without the code, steps to reproduce, expected results, and actual results.

  Edit: I see you added the code.  You actions name is incorrect and the input parameter name is most likely incorrect.  you did not post the route config so can't be sure.

  This works which is the default API template in VS.

      public partial class ValuesController : ApiController
      {
          [HttpGet]
          public string Get()
          {
              return "Hello World";
          }
  
          // GET api/values/5
          [HttpGet]
          public int Get(int id)
          {
              return id;
          }

• • Reply
  SaMolPP

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  Re: unable to get webapi result with parameter

  Apr 25, 2019 02:01 PM|SaMolPP|LINK

  so, in order to pass the parameter, should i always use get() ?

  cant i use some other method names?

  ps: am sorry, if this is a stupid question

• • Reply
  mgebhard

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  Re: unable to get webapi result with parameter

  Apr 25, 2019 02:05 PM|mgebhard|LINK

  SaMolPP

  so, in order to pass the parameter, should i always use get() ?

  cant i use some other method names?

  No, all the action types have the ability to accept input parameters.

  I recommend that you go through a few tutorials to learn the fundamentals.

  https://docs.microsoft.com/en-us/aspnet/web-api/overview/getting-started-with-aspnet-web-api/tutorial-your-first-web-api

• • Reply
  SaMolPP

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  Re: unable to get webapi result with parameter

  Apr 25, 2019 02:08 PM|SaMolPP|LINK

  thanks, am not getting the actual results even after adding [System.Web.Http.HttpGet] attribute.

• • Reply
  mgebhard

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  Re: unable to get webapi result with parameter

  Apr 25, 2019 02:15 PM|mgebhard|LINK

  SaMolPP

  thanks, am not getting the actual results even after adding [System.Web.Http.HttpGet] attribute.

  I cannot see your updated code.  Did you change the action name to "Get" and change the input name to "Id" too?

  Otherwise the URL is...

  http://localhost:52803/api/home/?mid=5

• • Reply
  SaMolPP

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  Re: unable to get webapi result with parameter

  Apr 29, 2019 11:12 AM|SaMolPP|LINK

  thanks mgebhard!

  it worked now.