How do I use firebase auth for my projects?

[Eden]

Hello everyone, I would like to ask you a question, I hope you can help me, how do i use firebase auth for my projects? Thank you please kindly give me your help Help.

[Cruz]

You can set the rule as follows:

"Node": {
    "$field": {
        ".read": root.child('Projects/' + data.child('project').val() + '/Members/' + auth.uid).exists()",
        ".write": //same here
    }
}