How to implement automatic authorization by link to mob. Appendix?

Question

Android

Hello! How to implement automatic authorization via a link to a mobile application?
It is necessary that when switching to the "magic link", the following requirements are met:
- Is the mobile application installed:
- if not:
- What OS, if android then go to PlayMarket, if ayos then go to EppStore.
-- if yes:
--- Open the application.
- Log in.
--- if the data is correct (which is indicated in the link), then try to log in.
--- if they are not true, there is nothing not to give.
Is it possible to create and make such a link?
I note that the software is developed in Android Studio - Java.

Answer 1

you create a page on your site that can detect the OS and redirect to the appropriate store.
for iOS, implement the url scheme for this page.
for android verified deep link for this page.
Inside applications, you take data from the url and do whatever you want with it.