Parse Json Method POST windows phone app 8.1 -

i've down method httpclient, dont know how data param (id) or method post, me. code httpclient use before, hope method post same it.

public async void getreponse()     {         var postrequest = (httpwebrequest)webrequest.create("http://210.86.239.156/pixa/app_truyenhay/api/list_story");         postrequest.method = "get";         postrequest.cookiecontainer = new cookiecontainer();         httpwebresponse postresponse = (httpwebresponse)await postrequest.getresponseasync();         string response = string.empty;         if (postresponse != null)         {             var postresponsestream = postresponse.getresponsestream();             var poststreamreader = new streamreader(postresponsestream);              response = await poststreamreader.readtoendasync();         }         liststory liststory = newtonsoft.json.jsonconvert.deserializeobject<liststory>(response);         /*foreach (var blog in liststory.items)             blog.storyimage = "http://a.wattpad.com/cover/30539421-256-k910647.jpg";         //lbtruyen.itemssource = liststory.items;                        */     }