Firebase Simple Login Username

[Daniel Berg]

Hello, I am pretty new to this and just messing around trying to learn...

Is there any way to login via username rather than email address with simple email/pass login? I have a unique username stored in the user's data upon registration. Is it a horrible idea to do a lookup upon login based on username to fetch their email and auth with that?

I started with this as a code base.
https://github.com/firebase/angularFire-seed

[Michael Wulf]

Hi Daniel,

If you're set on using email/password auth with a username instead, you can simply index the users to email addresses in a sep path. Then when a user authenticates, look up their email in the index:

/user_to_email_index/$user_name/<email address>

However, while you can easily prevent listing of all the addresses, you can't really prevent someone from putting in an email directly and finding out a user's email (since they won't be authenticated at the time).

You may be ahead to just sign your own tokens and keep things simple. 

Cheers,

Kato

 

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[Daniel Berg]

Thanks, that is what I was thinking but I figured that could be a security issue. I think I will just keep the login via email and use the username elsewhere.