function fetch(url, useJson = true) {
  const queryURL = $.NSURL.URLWithString(url);
  const requestData = $.NSData.dataWithContentsOfURL(queryURL);
  const requestString = $.NSString.alloc.initWithDataEncoding(
    requestData,
    $.NSUTF8StringEncoding,
  ).js;
  if (useJson) {
    return JSON.parse(requestString);
  } else {
    return requestString;
  }
}

console.log(fetch("https://melaniekat.com/gifs/api"))