Supabase Edge Functions carry the mobile backend logic your client should never hold

UpdatedSeptember 6, 2026

Every Expo app eventually grows a piece of logic that does not belong on the phone. It starts innocently: a promo-code check, a usage counter, a call to a third-party API with a secret key. You wire it into the client because it is fast, and then one day you realize the secret ships inside your JavaScript bundle, the quota check can be bypassed by anyone with a proxy, and the webhook from your payment provider has nowhere safe to land. That is the moment your app needs a real server-side companion, and for Supabase-backed mobile apps the smallest honest answer is an Edge Function.

Supabase Edge Functions are server-side TypeScript functions that run on Deno-compatible infrastructure close to your users.

This is an excerpt. Read the full post at otf-kit.dev/blog/supabase-edge-functions-mobile-backend — full-stack kits your AI coding agent can actually ship to production. Browse the kits →

#supabase #backend #react-native

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Engineering notes on shipping production apps with AI coding tools — Claude Code, Cursor, Codex, Lovable, Bolt — and the stack underneath: React Native, Expo, Next.js, Supabase. Honest takes on what works, what breaks, and the full-stack kits that get you to production faster. By OTF.

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