NSURLRequest cURL description

NSURLRequest+cURL

- (NSString *)description {
  
  __block NSMutableString *displayString = [NSMutableString stringWithFormat:@"curl -v -X %@", self.HTTPMethod];
  
  [displayString appendFormat:@" \'%@\'",  self.URL.absoluteString];
  
  [self.allHTTPHeaderFields enumerateKeysAndObjectsUsingBlock:^(id key, id val, BOOL *stop) {
    [displayString appendFormat:@" -H \'%@: %@\'", key, val];
  }];
  
  if ([self.HTTPMethod isEqualToString:@"POST"] ||
      [self.HTTPMethod isEqualToString:@"PUT"] ||
      [self.HTTPMethod isEqualToString:@"PATCH"]) {
    
    [displayString appendFormat:@" -d \'%@\'",
     [[NSString alloc] initWithData:self.HTTPBody encoding:NSUTF8StringEncoding]];
  }
  
  return displayString;
}