Testing Supabase Edge Functions Locally

1. Supabase CLI not installed or not logged in
2. Edge functions not set up for local testing
3. Wrong function path or env variables not configured
4. Local environment not started properly
5. Dependencies not installed for function

Start local Supabase environment:

supabase start

Test function locally:

curl -X POST http://localhost:54321/functions/v1/my-function \
  -H "Authorization: Bearer " \
  -H "Content-Type: application/json" \
  -d '{"test": true}'

View logs with supabase functions logs.