auth.uid not a string?

[Ab Scond]

I've whittled this down to the simplest example I can.

1] I have enabled Email & Password Authentication.  There is a user in there with a user ID of 2, which means the user's uid will be 'password:2'.

2] The contents of my Firebase looks like this:

{

  "map" : {

    "password:2" : "bjB2LRQS1"

  }

}

3] My security rules look like this:

{

  "rules": {

    "a": {

      "b": {

        "c": {

          ".write": "newData.exists() && root.child('map').child(auth.uid).val() == newData.child('someKey').val()"

        }

      }

    }

  }

}

4] In the simulator, I do the following:

• Custom auth: {id: 2, provider: 'password', uid: 'password:2'}
• Simulate write
• URL field is:  /a/b/c
• JSON data is:  {"someKey": "bjB2LRQS1", "time":{".sv":"timestamp"}}

5] That should work, right?  Nope.  Because apparently "auth.uid" isn't a string!  Here's what the simulator says:

Attempt to write {"someKey":"bjB2LRQS1","time":1423016690383} to /a/b/c with auth=null

/

/a

/a/b

/a/b/c:.write: "newData.exists() && root.child('map').child(auth.uid).val() == newData.child('someKey').val()"

6:66: child() expects a string argument.

=> false

No .write rule allowed the operation.

Write was denied.

Any ideas about what am I doing wrong?

Thanks for your help!

- Ab Scond

[Jacob Wenger]

Hey there,

Looking at the output from the simulator it says "Attempt to write {"someKey":"bjB2LRQS1","time":1423016690383} to /a/b/c with auth=null". Note that it says auth is null, which is why your rule fails (since auth.uid does not exist). Make sure that click the "Authenticate" button in the simulate to set the auth variable, and then try again. I think it will work for you this time!

Jacob

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[Ab Scond]

Wait, you mean the giant green button right in the middle of the page that should have been glaringly obvious to me?

Argh, I can't believe I missed that.  I should stop posting questions late at night.  I bet in the morning I would have seen the button.

[Kato Richardson]

I've missed it myself a couple of times while working in the simulator. Don't fret too much. It's more frustrating when support has to ask for support.  :)

To view this discussion on the web visit https://groups.google.com/d/msgid/firebase-talk/6467348c-1179-42fc-ba74-6b1f6f0aa879%40googlegroups.com.