Question says it all. In Firebase, how do I confirm email when a user creates an account, or, for that matter, do password reset via email.
I could ask more broadly: is there any way to send emails out from Firebase? E.g. notifications, etc. This isn't the kind of thing you would usually do client-side.
Update
Note that this was never a very secure way of handling email verification, and since Firebase now supports email verification, it should probably be used instead.
Original answer
I solved the email verification using the password reset feature.
On account creation I give the user a temporary (randomly generated) password. I then trigger a password reset which will send an email to the user with a link. The link will allow the user to set a new password.
To generate a random password you can use code similar to this:
function () {
var possibleChars = ['abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789!?_-'];
var password = '';
for(var i = 0; i < 16; i += 1) {
password += possibleChars[Math.floor(Math.random() * possibleChars.length)];
}
return password;
}
Note that this is happening on the client, so a malicious user could tamper with your logic.