Hello, I understand what you are talking about. Thank you for such a detailed information. It's not an easy topic to talk about in a forum circumstances. My recommendation for you is to contact our support engineer with all the information you mentioned here. Of course, I am required to give you the link to official access Google APIs with OAuth 2.0 documentation. Most likely, you have already seen this documentation. But anyway, please, check it. Most likely it will be helpful for you. Please, contact our support team and consider about the functionality you are going to implement in your application. Hope, you will get great help in such a way. Thank you for your patience and understanding!