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copied!<p>Using <a href="https://github.com/AFNetworking/AFNetworking" rel="nofollow">AFNetworking</a> this is how I do it:</p> <pre><code>NSMutableDictionary *params = [[NSMutableDictionary alloc]init]; [params setObject:@"myUserName" forKey:@"username"]; [params setObject:@"1234" forKey:@"password"]; [[AFHTTPRequestOperationLogger sharedLogger] startLogging]; NSData *imageData; NSString *urlStr = [NSString stringWithFormat:@"http://www.url.com"]; NSURL *url = [NSURL URLWithString:urlStr]; AFHTTPClient *httpClient = [[AFHTTPClient alloc] initWithBaseURL:url]; imageData = UIImageJPEGRepresentation(mediaFile, 0.5); NSMutableURLRequest *request = [httpClient multipartFormRequestWithMethod:@"POST" path:nil parameters:params constructingBodyWithBlock: ^(id <AFMultipartFormData>formData) { [formData appendPartWithFileData:imageData name:@"mediaFile" fileName:@"picture.png" mimeType:@"image/png"]; }]; AFJSONRequestOperation *operation = [AFJSONRequestOperation JSONRequestOperationWithRequest:request success:^(NSURLRequest *request, NSHTTPURLResponse *response, id JSON) { UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"File was uploaded" message:@"" delegate:self cancelButtonTitle:@"Close" otherButtonTitles: nil]; [alert show]; } failure:^(NSURLRequest *request , NSURLResponse *response , NSError *error , id JSON) { NSLog(@"request: %@",request); NSLog(@"Failed: %@",[error localizedDescription]); }]; [operation setUploadProgressBlock:^(NSUInteger bytesWritten, long long totalBytesWritten, long long totalBytesExpectedToWrite) { NSLog(@"Sent %lld of %lld bytes", totalBytesWritten, totalBytesExpectedToWrite); }]; [httpClient enqueueHTTPRequestOperation:operation]; </code></pre>

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