[Feature Request] Support for batched operations #18
Description
Firestore supports batched operations, this library would be really good if you can support this. a batch can support 500 operation max, here's the URL for batched operations
https://firebase.google.com/docs/firestore/manage-data/transactions#batched-writes
// Get a new write batch
let batch = db.batch();
// Set the value of 'NYC'
let nycRef = db.collection('cities').doc('NYC');
batch.set(nycRef, {name: 'New York City'});
// Update the population of 'SF'
let sfRef = db.collection('cities').doc('SF');
batch.update(sfRef, {population: 1000000});
// Delete the city 'LA'
let laRef = db.collection('cities').doc('LA');
batch.delete(laRef);
// Commit the batch
return batch.commit().then(function () {
// ...
});