How can I remove a custom claim

Question

I have some custom claims like

{
  claim1: true,
  claim2: true,
}

I want to remove one claim

{
  claim2: true,
}

In firebase authentication, is there a way to remove a custom claim? Here use

admin.auth().updateUser(uid, {claim: null});

but update user not have claim property.

if I use this, this remove the previous claims and also set null, not removed

admin.auth().setCustomUserClaims(context.auth.uid, {claim1: null});

{
  claim1: null,
}

You have to delete it like delteing a property of an object. See below. — Itang Sanjana, Dec 02 '19 at 17:32

score 1 · Answer 1 · answered Sep 04 '19 at 21:55

1

Get the UserRecord for the user's UID with getUser().
Get their existing custom claims from customClaims property.
Make changes to it as needed.
Update the modified claims with setCustomUserClaims().

answered Sep 04 '19 at 21:55

Doug Stevenson

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score 0 · Answer 2 · answered Dec 02 '19 at 17:47

Delete the claim in question.

admin.auth().getUser(uid).then((user) => {

    const userCustomClaims = user.customClaims;

    if (userCustomClaims["claim1"]) {

        delete userCustomClaims["claim1"];
        return admin.auth().setCustomUserClaims(user.uid, userCustomClaims);

    }
}).catch((error) => {

    console.error(error);

});

CMIIW

How can I remove a custom claim

2 Answers2