How to fix Error: Your Cloud Firestore database is in maintenance mode in Firebase

1. Open the [Firebase Console](https://console.firebase.google.com/)

1. Visit [Firebase Status Dashboard](https://status.firebase.google.com/)

import { getFirestore, collection, getDocs } from 'firebase/firestore';

async function getDataWithRetry(maxRetries = 5, initialDelay = 1000) {
  const db = getFirestore();
  let delay = initialDelay;

  for (let attempt = 1; attempt <= maxRetries; attempt++) {
    try {
      const snapshot = await getDocs(collection(db, 'your-collection'));
      return snapshot.docs.map(doc => doc.data());
    } catch (error) {
      if (error.code === 'service-unavailable' || error.message.includes('maintenance mode')) {
        if (attempt === maxRetries) throw error;

        console.log(`Maintenance mode detected. Retrying in ${delay}ms... (Attempt ${attempt}/${maxRetries})`);
        await new Promise(resolve => setTimeout(resolve, delay));
        delay = Math.min(delay * 2, 30000); // Cap at 30 seconds
      } else {
        throw error;
      }
    }
  }
}

getDataWithRetry()
  .then(data => console.log('Success:', data))
  .catch(err => console.error('Failed after retries:', err));

import { initializeApp } from 'firebase/app';
import { getFirestore, enableIndexedDbPersistence } from 'firebase/firestore';

const app = initializeApp(firebaseConfig);
const db = getFirestore(app);

enableIndexedDbPersistence(db)
  .catch((err) => {
    if (err.code === 'failed-precondition') {
      console.log('Multiple tabs open, persistence can only be enabled in one tab');
    } else if (err.code === 'unimplemented') {
      console.log('Current browser does not support persistence');
    }
  });