Title: User Authentication query
Last modified: August 31, 2016

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# User Authentication query

 *  Resolved [sandy01101989](https://wordpress.org/support/users/sandy01101989/)
 * (@sandy01101989)
 * [9 years, 11 months ago](https://wordpress.org/support/topic/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/](https://wordpress.org/plugins/json-api-auth/)

Viewing 1 replies (of 1 total)

 *  Plugin Author [Ali Qureshi](https://wordpress.org/support/users/parorrey/)
 * (@parorrey)
 * [9 years, 11 months ago](https://wordpress.org/support/topic/user-authentication-query/#post-7454460)
 * Each time you need to authenticate user, you need to use generate_auth_cookie
   endpoint. (and then store it local storage for later calls).
 * You can ask user to provide username (or email) and password to generate cookie
   and log him in.
 * BTW, you can use my other ‘JSON API User’ plugin for more endpoints. All existing
   endpoints of this plugin are available there.

Viewing 1 replies (of 1 total)

The topic ‘User Authentication query’ is closed to new replies.

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## Tags

 * [user authentication](https://wordpress.org/support/topic-tag/user-authentication/)

 * 1 reply
 * 2 participants
 * Last reply from: [Ali Qureshi](https://wordpress.org/support/users/parorrey/)
 * Last activity: [9 years, 11 months ago](https://wordpress.org/support/topic/user-authentication-query/#post-7454460)
 * Status: resolved