#if TOOLS

namespace Rokojori.Tools
{
  using Rokojori;

  // JSONObject.GetString/GetNumber/GetBoolean etc. call Get(key) and dereference the result
  // without a null check - they throw if the key is simply absent, which is the normal case
  // for optional/missing request fields. This is the null-safe version for that situation.
  public static class JsonUtil
  {
    public static string GetStringOrNull( JSONObject obj, string key )
    {
      if ( obj == null )
      {
        return null;
      }

      var data = obj.Get( key );
      return data != null && data.isString ? data.stringValue : null;
    }
  }
}

#endif