firebase setCustomUserClaims 执行不会在模拟器中结束

Question

I am trying to set a custom claim to an existing user in the emulator with the following code:

exports.addAdmin = functions.https.onRequest((req, res) => {
    admin.auth().setCustomUserClaims("ZZyxFu17eN8y6orw0tSQ8Y0vyPFS", { admin: true })
});

The logs tell me the the execution of the function started. functions: Beginning execution of "addAdmin" In the auth emulator I can see that the custom claim is successfully set to the user {"admin":true} . But the execution of the function doesn't end.

When I shutdown the emulator with CTRL+CI get the following logs functions: Waiting for all functions to finish... . Then after some minutes: functions: Functions emulator work queue did not empty before stopping ⚠ Your function was killed because it raised an unhandled error.

What am I doing wrong here?

Answer 1

The setCustomUserClaims() does end but you are not terminating the function itself. To terminate a HTTP function, you must return back a response. Try:

exports.addAdmin = functions.https.onRequest(async (req, res) => {
    await admin.auth().setCustomUserClaims("ZZyxFu17eN8y6orw0tSQ8Y0vyPFS", { admin: true })

    return res.json({ message: "Claims updated" })
});

Checkout the documentation on terminating Cloud Functions and this video .