writeJSONToSecureContainer.swift

guard let jsonData = try? JSONSerialization.data(withJSONObject: trackers, options: .prettyPrinted) else {
  return
}

let documentFolder = FileManager.default.containerURL(forSecurityApplicationGroupIdentifier: "group.trackerblocker")

guard let jsonURL = documentFolder?.appendingPathComponent(Constants.blockerListFilename) else {
  return
}

do {
  try jsonData.write(to: jsonURL)
} catch {
  // Handle the error here
}