gistfile1.txt

    if ([[UIScreen mainScreen] respondsToSelector:@selector(scale)]) {
        UIGraphicsBeginImageContextWithOptions(_site.bounds.size, NO, [UIScreen mainScreen].scale);
    } else {
        UIGraphicsBeginImageContext(_site.frame.size);
    }
    
  [_site.layer renderInContext:UIGraphicsGetCurrentContext()];
    
	UIImage *viewImage = UIGraphicsGetImageFromCurrentImageContext();
	UIGraphicsEndImageContext();
    
    NSURL *url = [NSURL URLWithString:@"http://ec2-54-200-77-159.us-west-2.compute.amazonaws.com:3000"];
    AFHTTPClient *httpClient = [[AFHTTPClient alloc] initWithBaseURL:url];
    NSData *imageData = UIImagePNGRepresentation(viewImage);
    NSMutableURLRequest *request = [httpClient multipartFormRequestWithMethod:@"POST" path:@"/photo" parameters:nil constructingBodyWithBlock: ^(id <AFMultipartFormData>formData) {
        [formData appendPartWithFileData:imageData name:@"map" fileName:@"map.png" mimeType:@"image/png"];
    }];
    
    AFHTTPRequestOperation *operation = [[AFHTTPRequestOperation alloc] initWithRequest:request];
    [operation setUploadProgressBlock:^(NSUInteger bytesWritten, long long totalBytesWritten, long long totalBytesExpectedToWrite) {
        NSLog(@"Sent %lld of %lld bytes", totalBytesWritten, totalBytesExpectedToWrite);
        
    }];
    [httpClient enqueueHTTPRequestOperation:operation];