Azure Machine Learning - Text Analytics C# Bad Request body even after verifying JSON body -

working azure machine learning - text analytics rest api, located here. requires sending payload server via post. trying similar results ibm watson

here tried in console app, here's core code:

static irestresponse getresp(string url, string key, string jsontext) {     irestclient client = new restclient(url);     irestrequest request = new restrequest() { requestformat = dataformat.json };       request.addheader("content-type", "application/json");     request.addheader("ocp-apim-subscription-key", key);     irestresponse response = client.executeaspost(request, "post"); 

}

//  here code serializes object precisely body advertised calls it:  string json = jsonconvert.serializeobject(documents); irestresponse resp = getresponse("https://westus.api.cognitive.microsoft.com/text/analytics/v2.0/keyphrases", taxonomygluekey, json); 

message body serializing "documents" is:

{  "documents": [    {   "language": "en",   "id": "4",   "text": "lateral internal sphincterotomy , fissurectomy"   },   {   "language": "en",   "id": "5",   "text": "fissurectomy , botox injection"   } ]}  

i bad request errors. i've verified request sent , passing authentication (it had failed prior). have tried many variations on well.

i able try request body out , works when copying text debug variable directly body provided azure:

https://westus.dev.cognitive.microsoft.com/docs/services/textanalytics.v2.0/operations/56f30ceeeda5650db055a3c6/console

if test using above response expected, status 200:

transfer-encoding: chunked x-aml-ta-request-id: c4ea9fff-8068-42a3-99c4-68717acddcf5 x-content-type-options: nosniff apim-request-id: e5eb593b-96a3-4806-9143-1d83424569be date: thu, 21 jul 2016 14:14:44 gmt content-type: application/json; charset=utf-8  {    "documents": [       {        "keyphrases": [          "fissurectomy"       ],       "id": "4"     },    {       "keyphrases": [         "botox injection"       ],       "id": "5"     }   ],   "errors": [] } 

i working jquery , rest api sentiment analysis. had received same error have received. managed working providing json-serialized version of input request body.

here working code-

$(function() { var params ={ "documents": [ { "language": "en",  "id": "1",  "text": "this awesome!" } ] };   $.ajax({ url: "https://westus.api.cognitive.microsoft.com/text/analytics/v2.0/sentiment?" + $.param( params );, beforesend: function(xhrobj){ // request headers xhrobj.setrequestheader("content-type","application/json"); xhrobj.setrequestheader("ocp-apim-subscription-key","<your subscription key here>"); xhrobj.setrequestheader("accept","application/json"); }, type: "post", // request body data: json.stringify(params) }) .done(function(data) {         alert("sentiment score " + data.documents[0].score);      })     .fail(function() {         alert("error");     }); });