Expose and document the Firestore.projectId getter #2278
Description
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Documentation Request
Easy access to db.projectId would help diagnose situations in which it's not clear that the correct project ID was picked up.
import { initializeApp } from 'firebase-admin/app';
import { getFirestore } from 'firebase-admin/firestore';
initializeApp();
const db = getFirestore();
// Running the run line below triggers "INTERNAL ERROR: Client is not yet ready to issue requests"
// console.log('Database project ID:', (db as unknown as { projectId: string})['projectId']);It would also be useful to document when exactly the projectId becomes available (empirically after the first read operation).