c# - WCF and RESTful API: remote server returned bad request 400 on DELETE method -


i checked ton of posts/tutorials/videos still can't working code delete method in 1 specific case: when i'm trying delete id.

working sample below. i'm passing whole json string delete method , works (based on dare suggest there no errors in wcf/client configuration files).
wcf 

[operationcontract] [webinvoke(method = "delete",     responseformat = webmessageformat.json, requestformat = webmessageformat.json,     uritemplate = "delete" )] bool deletenews(news news);

client:

const string webservice_url = "http://localhost:33873/newsservice.svc/delete";             string jsondata = "{my json string}";             try             {                 var webrequest = webrequest.create(webservice_url);                 if (webrequest != null)                 {                     webrequest.method = "delete";                     webrequest.timeout = 20000;                     webrequest.contenttype = "application/json";                     using (stream s = webrequest.getrequeststream())                     {                         using (streamwriter sw = new streamwriter(s))                             sw.write(jsondata);                     }                      using (stream s = webrequest.getresponse().getresponsestream())                     {                         }                      }                  }

now demonstrate following code doesn't work me. i'm wondering can't use delete id.
wcf 

[operationcontract] [webinvoke(method = "delete",     uritemplate = "delete/?id={id}" )] bool deletenews(int id);

putting url browser http://localhost:33873/newsservice.svc/delete/?id=10 , getting "remote server returned bad request code 400" (meaning wrong on client side or request). have tried via string parameter below:

[operationcontract] [webinvoke(method = "delete",     uritemplate = "delete/{id}" )] bool deletenews(string id);

after such transformation, url looks http://localhost:33873/newsservice.svc/delete/10
result unsuccessfull same error.

enter image description here

have enabled "delete" verb in iisexpress

http://www.iis.net/learn/extensions/introduction-to-iis-express/iis-express-faq http://stevemichelotti.com/resolve-404-in-iis-express-for-put-and-delete-verbs/

you can manually test put,delet verbs fiddler


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