How do you restrict access in a app like hospital management system?

MIT App Inventor Help
1

Can you please show me how to restrict access in some cases in a app I created

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2

  1. You can use Firebase in such cases.

  2. You can add log in ID and password in Firebase and get such details whenever user login. If it matches let he proceed..

  3. You can create one admin app, from the app create a tag named access tag in Firebase and if you set this access tag true mean user can continue to login or else even correct log in detail user also cannot able to login.

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3

If using Firebase you should use Firebase Authentication to qualify users, that is, if you used user/password, the verify their email before allowing them to proceed.

An example of how this is done, using the web component:

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