Building Offline-Ready Apps with React Native and Expo
Riley Frost
Synopsis "Building Offline-Ready Apps with React Native and Expo"
What happens when your mobile app loses its connection—but your users still need to work? Building Offline-Ready Apps with React Native and Expo shows you how to design reliable TypeScript mobile applications that continue working through weak networks, process termination, expired sessions, failed uploads, and synchronization conflicts. Using the practical FieldLog project, you will learn how to: • Build durable local storage with SQLite • Secure credentials and manage offline authentication • Implement optimistic writes with the outbox pattern • Create resumable push/pull synchronization • Handle retries, idempotency, tombstones, and conflicts • Manage offline photos and background uploads • Test crashes, transport failures, migrations, and recovery • Monitor queue health and synchronization reliability • Deploy safely with EAS Build and EAS Update Rather than treating offline support as simple caching, this book presents it as a complete data, synchronization, and reliability architecture. Designed for developers familiar with TypeScript, React, HTTP APIs, and basic SQL, this practical guide will help you build React Native and Expo applications that preserve user work, recover predictably, and synchronize safely when connectivity cannot be trusted.