In this tutorial, you’ll learn how to build and connect the backend for a real-time chat app using Supabase, Clerk, and Expo Router.

✨ Add a complete auth & user management system to your Expo app in minutes using Clerk:
https://go.clerk.com/njd-expo

We’ll set up authentication, manage users, and create a scalable messaging backend that powers real-time updates for your mobile chat app. This video focuses on the backend logic, building the foundation that makes your chat app real-time, scalable, and production-ready. You’ll work with Supabase functions, real-time subscriptions, webhooks, and efficient data modeling to bring your frontend to life.

📚 Get the step-by-step guide and Asset Bundle:
https://www.notjust.dev/projects/real-time-chat

❗️ React Native Mastery is the ONLY course you need to Master mobile development with React Native & Expo 🚀
Enroll here: https://www.notjust.dev/react-native-mastery

🚀 Join the waitlist for the Incubator: https://www.notjust.dev/incubator

📝 This video includes a lot of tools and technologies, providing an excellent opportunity to learn how to:
👉 Set up Supabase tables for users, messages, and channels
👉 Sync Clerk authentication with Supabase using webhooks
👉 Create secure API routes for sending and retrieving messages
👉 Use Supabase Realtime to power instant chat updates
👉 Structure your database for group chats and message threading
👉 Handle message delivery, read status, and online presence tracking
👉 Manage environment variables and API secrets safely
👉 Test the full backend integration with the frontend from Part 1
👉 Deploy and scale your backend using Supabase Dashboard
👉 Debug and monitor your backend using Supabase logs and policies
.. and MORE!

💡 Have an idea for a future tutorial? Share it on our Idea Board:
https://github.com/orgs/notJust-dev/discussions

💬 Join the notJust Development gang and let's build together:
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#notjustdev #reactnative #supabase #clerk #expo

notJust.dev

A live-stream tutorial building the backend for a React Native chat app using Supabase and Clerk. Covers setting up Supabase tables (users, channels, channel memberships), integrating Clerk authentication with Supabase via JWT tokens and a React context provider, syncing Clerk users to Supabase via webhooks and edge functions, implementing row-level security (RLS) policies, generating TypeScript types from the database schema, and replacing manual data fetching with TanStack Query for caching, loading states, and error handling.

Build a Scalable Chat App Backend with Supabase and Clerk