How get the user id if the user isn't connected to your app?
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05-07-2021 - |
Question
Is it possible to get the user id if the user isn't connected to your app?
Solution
If you have the users login name (i.e. email) you can do a query like this:
https://graph.facebook.com/search?q=USER_LOGIN&type=user&access_token=ANY_ACCESS_TOKEN
You can use any valid access token to run this request.
The resulting Data object contains user name and user id.
OTHER TIPS
Facebook doesn't allow you that without permission!
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