How to fix EdgeFunctionError: Function not found in Supabase

# List your edge functions
ls -la supabase/functions/

https://<project-ref>.supabase.co/functions/v1/send_email

# Deploy a specific function
supabase functions deploy <function-name>

# Or deploy all functions
supabase functions deploy

# Verify deployment succeeded
supabase functions list

# Start local Supabase environment
supabase start

# Serve edge functions locally
supabase functions serve

# In another terminal, call the function
curl http://localhost:54321/functions/v1/<function-name>

// Correct format
https://<your-project-ref>.supabase.co/functions/v1/<function-name>

// Example
https://example-abc123.supabase.co/functions/v1/send_email

// Call from JavaScript
const response = await fetch(
  'https://example-abc123.supabase.co/functions/v1/send_email',
  {
    method: 'POST',
    headers: { 'Content-Type': 'application/json' },
    body: JSON.stringify({ email: '[email protected]' }),
  }
);

// supabase/functions/my-function/index.ts
import { serve } from 'https://deno.land/[email protected]/http/server.ts';

// Use JSR/Deno-compatible imports instead of npm
import { createClient } from 'jsr:@supabase/[email protected]';

serve(async (req) => {
  const supabase = createClient(
    Deno.env.get('SUPABASE_URL')!,
    Deno.env.get('SUPABASE_ANON_KEY')!
  );

  return new Response('Function works!');
});

# Update Supabase CLI
npm install -g supabase@latest

# Or for a specific version that's known to work
npm install -g [email protected]

# Deploy with debug output to see what's happening
supabase functions deploy <function-name> --debug