Posting to twitter with TWRequest

It took me a while but I finally found a solution to posting a status with TWRequest. I had to use the addMultiPartData: method and separately add the status and image. Hope this helps anybody who has the same problem I had.

        if ([TWTweetComposeViewController canSendTweet])

    {

        // Create account store, followed by a twitter account identifier

        // At this point, twitter is the only account type available

        ACAccountStore *account = [[ACAccountStore alloc] init];

        ACAccountType *accountType = [account accountTypeWithAccountTypeIdentifier:ACAccountTypeIdentifierTwitter];

        

        // Request access from the user to access their Twitter account

        [account requestAccessToAccountsWithType:accountType withCompletionHandler:^(BOOL granted, NSError *error) 

         {

             // Did user allow us access?

             if (granted == YES) {

                 

                  // Populate array with all available Twitter accounts

                 NSArray *arrayOfAccounts = [account accountsWithAccountType:accountType];

                 

                 // Sanity check

                 if ([arrayOfAccounts count] > 0) 

                 {

                     // Keep it simple, use the first account available

                     ACAccount *acct = [arrayOfAccounts objectAtIndex:0];

                     

                     NSString *status = [[NSString alloc] initWithString:captionField.text];

                     

                     // Build a twitter request

                     TWRequest *postRequest = [[TWRequest alloc] initWithURL:[NSURL URLWithString:@"https://upload.twitter.com/1/statuses/update_with_media.json"] 

                                                                  parameters:nil requestMethod:TWRequestMethodPOST];

                     

                    

                     [postRequest addMultiPartData:[captionField.text dataUsingEncoding:NSUTF8StringEncoding] withName:@"status" type:@"multipart/form-data"];

                    

                     // "http://api.twitter.com/1/statuses/update.json"

                    

                     

                     [postRequest addMultiPartData:UIImageJPEGRepresentation(image, 0.9) withName:@"media" type:@"multipart/png"];

                     // Post the request

                     [postRequest setAccount:acct];

                     

                     // Block handler to manage the response

                     [postRequest performRequestWithHandler:^(NSData *responseData, NSHTTPURLResponse *urlResponse, NSError *error) 

                      {

                          NSLog(@"Twitter response, HTTP response: %i", [urlResponse statusCode]);

                      }];

                     [postRequest release];

                     [status release];

                 }

             }

         }];

        [account release];

        

    }