Building a Sync-Engine and Reactivity System with SQLite: Lessons Learned
By
engmarketer
Slow-proofed and worth the wait. Worth its weight in flour.
Summary
The article discusses the author's experience building a sync-engine and reactivity system using SQLite, initially experimenting with Electric and PGlite (a WASM-based PostgreSQL for browsers). The setup ensures local and server database synchronization and leverages PostgreSQL's LISTEN feature for application-wide reactivity. The post focuses on the minimal sync engine and BroadcastChannel-powered reactivity developed for the offline-first, E2E encrypted Interleave application.
Key quotes
· 3 pulledIn a way, this approach is ideal as you have the same database engine locally as on the server.
Electric syncs every change granularly, you are certain that the state of your local database is exactly the same as the server's.
Thanks to PostgreSQL, it's possible to use LISTEN which enables total reactivity throughout the application, which is really cool to see.
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