I have a hosted web app. I want to convert the app to Fire TV stick app. I could previously identify the user with some uuid parameters in the url but since I have to submit a single url to amazon hosted web app I want to give my user a setup screen when the app is first started. Here they can enter a unique identifier. How can I persist this unique identifier so that my application can recognize the user. This is a one time setup application, so logging the user in every time is not possible.
To cut it short,
1. Is there a way to persist data in Amazon hosted web app that is not deleted even after restart or reboot?
2. Is there a good reliable way to uniquely identify each app installation?
Thank you for your help.