sunrise1234321

// In a Firestore standard example, we quickly create a 'xmas tree' of nested stuff 
// We use Promises directly: get().then(callback) and use snapshot.forEach() to iterate
let campaignsRef = db.collection('campaigns');
let activeCampaigns = campaignsRef.where('active', '==', true).select().get()
.then(snapshot => {
    snapshot.forEach(campaign => {
        console.log(campaign.id);
        let allTasks = campaignsRef.doc(campaign.id).collection('tasks').get().then(
            snapshot => {
                snapshot.forEach(task => {