Calling WebAPI actions from both Javascript and C#.Net clients RSS

• • Reply
  

  RajeshKalis

  Member

  27 Points

  54 Posts

  Calling WebAPI actions from both Javascript and C#.Net clients

  Nov 20, 2012 12:16 PM|LINK

  Hi, I will ask my question with clear example. Please follow the below steps.

  I have created the following web api action within some api controller.

  [HttpPost]
          public HttpResponseMessage SubmitOnServer(RequestObject request)
          {
              HttpResponseMessage result = null;
  
              // I have written logic to save data on server and return back the result as response object.
              ResponseObject response=SaveOnServer(request);
             
              //Now I want to send response object to Client. Here client is either javascript or C#.Net.
              result = Request.CreateResponse(HttpStatusCode.OK, response);
  
              return result;
          }

  I can call this web api action from C#.Net client by using HttpClient object like the following

          public ResponseObject SubmitOnServer(RequestObject request)
          {
              try
              {
                  var resp = Client.PostAsJsonAsync(webApiUrl, request).Result;
  
                  if (resp.StatusCode == HttpStatusCode.OK)
                  {
                      return resp.Content.ReadAsAsync<ResponseObject>().Result;
                  }
                  return null;
              }
              catch (Exception ex)
              {
                  return null;
              }
          }

  But, my question is: How to call the above web api action from javascript by using JQuery.ajax().

  
  Actually I have requirement like call web api actions from both javascript and C#.Net clients.

  Please suggest best way for this?

  Note: With some modification I can call it is from javascript but not from C#.Net.
  You can see the modified code below

          [HttpPost]
          public System.Web.Mvc.JsonResult SubmitOnServer(RequestObject request)
          {
              System.Web.Mvc.JsonResult result =new System.Web.Mvc.JsonResult();
  
              // I have written logic to save data on server and return back the result as response object.
              ResponseObject response=SaveOnServer(request);  
             
              //Now I want to send response object to Client. Here client is either javascript or C#.Net.
              result.Data = response;
  
              return result;
          }
  

  
  
  
  
  

  Thanks,
  K. Rajesh.
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  imran_ku07

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  Re: Calling WebAPI actions from both Javascript and C#.Net clients

  Nov 20, 2012 04:20 PM|LINK

  Make sure to add the Accept application/json header from ajax

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• • Reply
  

  RajeshKalis

  Member

  27 Points

  54 Posts

  Re: Calling WebAPI actions from both Javascript and C#.Net clients

  Nov 21, 2012 03:39 AM|LINK

  Can you provide a sample code snippet to add accept application/json header.

  Thanks,
  K. Rajesh.
• • Reply
  

  imran_ku07

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  Re: Calling WebAPI actions from both Javascript and C#.Net clients

  Nov 21, 2012 04:33 AM|LINK

  A simple ajax request may be,

  $.ajax({
  beforeSend: function(xhrObj){
  xhrObj.setRequestHeader("Content-Type","application/json");
  xhrObj.setRequestHeader("Accept","application/json");
  },
  type: "POST",
  url: "/api/Blah",
  dataType: "json",
  success: function(json){
  //do something...
  }
  });

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