Firestore Increment - Counters that Scale

Learn about the new Firestore "increment" field-value that can update a counter on the server atomically, with dramatically simplified code https://fireship.io/snippets/firestore-increment-tips/

• Increment blog post https://firebase.googleblog.com/2019/03/increment-server-side-cloud-firestore.html
• Database Transactions https://firebase.google.com/docs/firestore/manage-data/transactions ... https://www.youtube.com/watch?v=8Ejn1FLRRaw