Supabase Mastery · Step 4 of 6
Storage, Edge Functions & Realtime
Learn to add file uploads, server-side logic, and live updates to your Supabase app — safely and correctly.
What you’ll walk away with
- Handle file uploads properly using Supabase Storage, avoiding common security pitfalls
- Write server-side logic with Edge Functions instead of exposing sensitive operations to the client
- Build live data subscriptions so your app updates in real time as data changes
- Combine Storage, Edge Functions, and Realtime together in a single hands-on feature build
- Understand where server-side logic belongs versus what should stay client-side
Questions people ask before they start
Do I need prior Supabase experience for this course?
This course builds on database fundamentals and assumes you're already comfortable with a Supabase project. It focuses specifically on Storage, Edge Functions, and Realtime — not basic setup.
What exactly will I build?
The final lesson, 'Hands-On: A Feature Using All Three,' walks you through building a single feature that combines file uploads, an Edge Function, and a live data subscription together.
Why does file upload handling matter so much?
The 'Storage: Handling File Uploads Properly' lesson exists because file uploads are a common source of security mistakes — this course teaches the correct way to handle them, not just the quick way.
What are Edge Functions used for in this course?
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Is this course about real-time chat apps specifically?
No. The Realtime module teaches live data subscriptions as a general capability — how to have your UI update automatically when underlying data changes — not a specific chat app project.
How is this different from just reading Supabase's documentation?
This course sequences the three capabilities — Storage, Edge Functions, and Realtime — into a guided, hands-on path that ends with a feature build combining all three, rather than leaving you to piece together separate docs on your own.