objective c - iOS - Unable to Upload media with Twitter/Fabric New SDK -

i want post photo twitter ios app. can post tweet without media when trying attach media throws error.

i following twitter documentation , according first need upload media https://upload.twitter.com/1.1/media/upload.json , able attach tweet using media-id.

here code uploading media.

app crashing @ urlrequestwithmedthod call.

help me resolve issue.

uiimage *image = [uiimage imagenamed:@"shareit.png"]; nsdata *imagedata = uiimagejpegrepresentation(image, 0.7); nsstring *statusesshowendpoint = @"https://upload.twitter.com/1.1/media/upload.json"; nsdictionary *params = @{@"media" : imagedata}; nserror *clienterror; nsurlrequest *request = [[[twitter sharedinstance] apiclient]                           urlrequestwithmethod:@"post"                          url:statusesshowendpoint                          parameters:params                          error:&clienterror];  if (request) {     [[[twitter sharedinstance] apiclient]      sendtwitterrequest:request      completion:^(nsurlresponse *response,                   nsdata *data,                   nserror *connectionerror) {          if (data) {              // handle response data e.g.              nserror *jsonerror;              nsdictionary *json = [nsjsonserialization                                    jsonobjectwithdata:data                                    options:0                                    error:&jsonerror];              nslog(@"%@",json);          }          else {              nslog(@"error: %@", connectionerror);          }      }]; } else {     nslog(@"error: %@", clienterror); } 

well pretty simple. missing conversion of imagedata base64encodedstring. here solution.

   nsstring *media = @"https://upload.twitter.com/1.1/media/upload.json";     nsdata *imagedata = uiimagejpegrepresentation(image, 0.9);     nsstring *imagestring = [imagedata base64encodedstringwithoptions:0];    nserror *error;    nsurlrequest *request = [[[twitter sharedinstance] apiclient] urlrequestwithmethod:@"post" url:media parameters:@{@"media":imagestring} error:&error];     [[[twitter sharedinstance] apiclient] sendtwitterrequest:request completion:^(nsurlresponse *urlresponse, nsdata *data, nserror *connectionerror) {         nserror *jsonerror;        nsdictionary *json = [nsjsonserialization                               jsonobjectwithdata:data                               options:0                               error:&jsonerror];        nslog(@"media id :  %@",[json objectforkey:@"media_id_string"]);        // post tweet media_id     }];