User Authentication query

Hi,

First of all thanks for providing me such a great plugin. I am using this plugin for user authentication process. It provides the user authentication process based on cookie value and it works.

But my question is that when a user uninstalls my application from his/her mobile, all the cookie related data gets deleted from mobile.

After that when user re-install the app, how can we authenticate already registered user without cookie.

Awaiting your helpful reply.

Thanks

https://wordpress.org/plugins/json-api-auth/