gistfile1.m

- (void)uploadImageToServer
{
    [SVProgressHUD showWithStatus:@"Hochladen" maskType:SVProgressHUDMaskTypeBlack];
    
    NSData *imageToUpload = UIImageJPEGRepresentation(self.croppedImage, 90);
    
    if (!imageToUpload) {
        NSLog(@"no data available");
        return;
    } else {
        NSLog(@"%ld", (unsigned long)imageToUpload.length);
    }

    NSString *urlString = [NSString stringWithFormat:@"%@userImage/upload", BKBaseURL];
    
    NSString *accessToken = @"ZGQzYzEzNWQ0ZmViYmQ2MGVlZjFkNmZkOGExNTI0ODRkMTMwNzdmOWM3MGMwZmQwYTg0NTI2MjU1ZTZlMjA5MA";
    
    AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
    manager.requestSerializer = [AFHTTPRequestSerializer serializer];
    [manager.requestSerializer setValue:[NSString stringWithFormat:@"Bearer %@", accessToken] forHTTPHeaderField:@"Authorization"];
    
    [manager POST:urlString parameters:nil constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {
        [formData appendPartWithFileData:imageToUpload name:@"file" fileName:@"temp.jpg" mimeType:@"image/jpeg"];
    }success:^(AFHTTPRequestOperation *operation, id responseObject) {
        NSLog(@"success: %@", responseObject);
    }failure:^(AFHTTPRequestOperation *operation, NSError *error) {
        NSLog(@"failure: %@ %@", error, operation.responseString);
    }];
}