Boost App Reliability: Offline Storage Solutions with AWS Expertise
summary
Amplify DataStore provides a local database (SQLite on iOS, IndexedDB on web) that automatically syncs with AppSync/DynamoDB using a Delta Sync change log and a background sync engine, hydrating the client and streaming updates via an observeQuery stream. Conflict detection uses versioning; default is last-writer-wins, but AppSync can invoke AWS Lambda for custom merges or use optimistic concurrency to reject conflicting writes. Demo shows CRUD with a few lines of code and TTL cleanup.
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chapters (22)
- 0:00Intro
- 0:45Offline First
- 4:03Real Time
- 4:55Introduction
- 5:35Cloud Technologies
- 6:50Demo Live
- 8:49WHY modern application development
- 9:41Challenges
- 11:44Solutions
- 12:14Library: AMPLIFY DATASTORE
- 15:00Flow to START USING datastore
- 18:32Architecture
- 19:55REAL TIME: local store + subscriptions
- 21:55CONFLICT detection and resolution
- 25:40Amplify Datastore
- 27:40Auto merge
- 30:41AWS Lambda
- 34:07Synchronization
- 35:17Delta Sync
- 36:40Time Travel
- 37:01DB Optimization
- 38:36Platforms
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