angularjs - Access raw XHR object using $http -


i need access raw xmlhttprequest object add file upload progress callback on browsers support it. possible, or have construct raw request myself? if so, how wrap raw xmlhttprequest in promise object?

i simulated $http call constructing custom xmlhttprequest so:

uploadfile(file, progresshandler) {   var xhr = new xmlhttprequest(),       deferred = $q.defer();    xhr.open("post", "your/path", true); // method, url, async   xhr.setrequestheader("content-type", file.type || "application/octet-stream");   xhr.onreadystatechange = function (e) {     if (xhr.readystate == 4) {       $rootscope.$apply(function () {         // construct response object similar regular $http call         //         // data – {string|object} – response body transformed transform functions.         // status – {number} – http status code of response.         // headers – {function([headername])} – header getter function.         // config – {object} – configuration object used generate request.         var r = {           data: xhr.response,           status: xhr.status,           headers: xhr.getresponseheader,           config: {}         };         if (r.status == 200) {           deferred.resolve(r);         } else {           deferred.reject(r);         }       });     }   };   if (progresshandler && xhr.upload) {     xhr.upload.addeventlistener('progress', function(e) {       progresshandler((e.loaded / e.total), e);     }, false);   }   // available in xhr2, provide multipart fallback   // if necessary   xhr.send(file);    return deferred.promise; }

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