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AngularJS: Limit logins to once device at a time?

Gregg asked
Last Modified: 2016-02-05
Hello experts,
I have a firebase application that implements a login strategy that is a derivative of angular-seed.

I would like to enforce user logins to be limited to one device at a time. Do you have any recommendations on how to implement this kind of feature?

For example, if I login on a desktop and then try logging in on a second device; I would like to be able to detect multiple login attempts. I have not decided what happens when this occurs yet but I believe I will invalidate the other session.

I have not started my research into this yet but I thought I would seek feedback from the EE community.

Thank you,
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