[FR] Add `returnUserInfo` to Admin SDK

[jdgamble555]

Is your feature request related to a problem? Please describe. We currently cannot count the number of users using the Firebase Admin Auth SDK. However, this is available in REST API with more boilerplate.

Describe the solution you'd like Add a returnUserInfo function to the Firebase Admin Auth SDK.

Describe alternatives you've considered Running the REST API manually:

const url = `https://identitytoolkit.googleapis.com/v1/projects/${projectID}/accounts:query?alt=json`;
const options = {
    method: 'POST',
    headers: {
        'Content-Type': 'application/json',
        'Authorization': `Bearer ${token.access_token}`
    },
    body: JSON.stringify({
        "returnUserInfo": false,
        "expression": []
    })
};

return await fetch(url, options).then(response => response.json());

Additional context Should be simple to add.

J

[google-oss-bot]

I found a few problems with this issue:

• I couldn't figure out how to label this issue, so I've labeled it for a human to triage. Hang tight.
• This issue does not seem to follow the issue template. Make sure you provide all the required information.