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Samenvattingen/Les14-Samenvatting.md

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+# Les 14: Supabase Advanced - Realtime, Storage & Edge Functions
+
+## Hoofdstuk
+**Hoofdstuk 3: Advanced** (Les 8-18)
+
+## Beschrijving
+Geavanceerde Supabase features voor productie apps.
+
+---
+
+## Te Behandelen
+
+### Realtime Subscriptions
+- Hoe Postgres broadcasts
+- Subscriben op table changes
+- Channel-based real-time (presence, broadcast)
+- Collaborative features
+- Reconnections handlen
+
+### Supabase Storage
+- File uploads (images, PDFs)
+- Buckets organiseren
+- Image transformations (resize, format, quality)
+- Signed URLs
+- Storage RLS policies
+
+### Edge Functions Deep Dive
+- Deno runtime
+- TypeScript
+- At edge
+- Waarom gebruiken:
+  - Hide API keys
+  - Server-side logic
+  - Scheduled tasks
+  - Webhooks
+
+### AI Integratie Patterns
+- Call OpenAI/Anthropic veilig
+- Streaming responses
+
+### Praktische Patterns
+- Form processing
+- Emails
+- Data verrijking
+
+### Authentication Advanced
+- Social logins (Google, GitHub, Discord)
+- Magic links
+- Email confirmatie
+- Password reset
+- Session management
+
+### Error Handling & Debugging
+- Supabase error messages
+- RLS debuggen
+- Logging
+
+### Cursor Composer
+- Voor complexe multi-feature development
+
+---
+
+## Tools
+- Supabase (Realtime, Storage, Edge Functions)
+- Cursor
+- OpenAI/Anthropic API
+
+---
+
+## Lesopdracht (2 uur)
+
+### Level Up Todo App met 3 Advanced Features (met Cursor)
+
+### Feature 1: Realtime Collaboration (40 min)
+
+Real-time updates wanneer user A/B changes:
+- Subscribe
+- Update UI
+- Show "live" indicator
+- Handle reconnection
+
+**Test met multiple windows**
+
+### Feature 2: File Attachments met Storage (40 min)
+
+Attach files (images/PDFs):
+- Upload button
+- Thumbnail voor images (transformations)
+- Download voor PDFs
+- Delete optie
+- Proper RLS
+
+### Feature 3: AI-Powered Task Suggestions met Edge Function (40 min)
+
+"Suggest Subtasks" button:
+- Edge Function
+- OpenAI/Anthropic API (hide key)
+- AI returns 3-5 subtasks
+- Auto-create in database
+- Stream results
+
+**Use Cursor Composer voor alle 3 features orchestreren**
+
+---
+
+## Huiswerk (2 uur)
+
+### Bouw Production-Ready Supabase Starter Template
+
+**Use Cursor Composer + Skills**
+
+### Include:
+
+| Feature | Details |
+|---------|---------|
+| Complete Auth | Email + Google, protected routes HOC, profile met avatar |
+| Database Examples | Schema met relationships, RLS gedocumenteerd, types auto-generated |
+| Realtime Demo | Chat of live updates |
+| Storage Demo | Upload met preview, optimization |
+| Edge Function | Met AI, error handling, rate limiting |
+| Documentation | Setup, env vars, extend, patterns, troubleshooting |
+
+### Structureer als GitHub Template
+
+**Test:**
+- Clone
+- Rename
+- Deploy naar Vercel
+- Aim: <10 min
+
+### Deliverable
+- Template repo
+- Setup video
+- Reflectie
+
+---
+
+## Leerdoelen
+Na deze les kan de student:
+- Realtime subscriptions implementeren voor collaborative features
+- Supabase Storage gebruiken met transformations en RLS
+- Edge Functions schrijven met AI integratie
+- Advanced authentication implementeren (social, magic links)
+- Errors debuggen in Supabase (RLS, queries)
+- Een production-ready Supabase starter template bouwen