Question 1

Is Convex Hard to Learn If You Know REST APIs?

Accepted Answer

Convex requires a genuine mental model shift from REST. Instead of HTTP endpoints that return data on request, Convex uses reactive queries — functions that subscribe to data and automatically re-run when the underlying data changes. Mutations replace POST/PUT/DELETE endpoints, and scheduling replaces cron jobs. The TypeScript-first design means your frontend and backend share types automatically, which eliminates a whole class of bugs — but the inversion of control (the database pushes data to clients rather than clients polling) trips up most REST-trained developers in the first week. The Convex docs have explicit 'coming from Postgres/REST' guides that shorten the ramp significantly.

Question 2

Convex vs Supabase: Which Should You Choose?

Accepted Answer

Choose Supabase if your team knows SQL and you want a managed Postgres with a REST/GraphQL layer — it's the lower-risk bet for teams migrating from traditional backends. Choose Convex if you're building a collaborative, real-time, or multiplayer application where live data sync is a first-class requirement — its reactive query model eliminates the polling and websocket plumbing that Supabase requires you to handle manually. Supabase has a larger ecosystem and more documentation. Convex has tighter TypeScript integration and a simpler mental model for real-time once the paradigm clicks. For a standard CRUD app with no live-sync requirements, Supabase is the lower-friction choice.