Why HttpPost isn't working in WebApi

Question

I am making an ajax request from the clientside to my web service built in web api. Here is the client side code : $.ajax({ url:  http://localhost:1583/api/storage/processing/v1/preview/test.docx  type: POST contentType: application/json; charset=utf-8 dataType: json cache: false responseType: json beforeSend: onProgress success: GenerateHtml complete: onComplete error: onFail }); Here is the controller's code: [HttpPost] [Route(WebApiConfig.RootApiUri + /v1/preview/{docid})] public async Task > Preview(string docid) { ///...ommitted the code../// } HttpPost isn't working however if change it to HttpGet it works. Any help on this would be greatly appreciated. Thanks.

Pushpendra Hirwani · Answer

@Bhuvanesh : your suggestion was helpful. I did a few tweaks removed {docid} from the route. Added [FromBody] in Preview([FromBody] string docid) changed the url in ajax code to http://localhost:1583/api/storage/processing/v1/preview and added data: JSON.stringify(test.docx) It works now.

Bhuvanesh Mohankumar · Answer

If you are passing a JSON object your WEB API method should receive the parameter however here in the sample you have only string object as parameter. public async Task > Preview( string docid ) Sample: public bool SaveContact ( Contact contact ) public bool SaveContact(Contactcontact)

Bhuvanesh Mohankumar · Answer

@pritaeas: [AllowAnonymous] is concern only during Authentication /Authorization issue Hereif the issue with Authentication then the GET also may not worked andunauthorized error may occurred.

Bhuvanesh Mohankumar · Answer

That's Great.

pritaeas · Answer

Have you tried what happens if you remove the routing? I usually also test using SoapUI it sometimes shows better errors than trying yourself with Javascript.

Pushpendra Hirwani · Answer

@bhuvanesh: I intend to send a json object from the ajax post request and convert the data into an object in the service hence I want to have POST request only.

Pushpendra Hirwani · Answer

@pritaeas : controller has [AllowAnonymous] attribute and both client side code and server side code are in the same project.

Bhuvanesh Mohankumar · Answer

GET - Requests data from a specified resource POST - Submits data to be processed to a specified resource Here you are passing only a file name which can be send through the URL itself so better suggested is the Get method. When you send a application model to the web api then post is advisable. Mark as answer if helpful.

pritaeas · Answer

If you add [AllowAnonymous] does it work then?