Edge Functions

Run server-side logic close to your users

Developing Edge Functions locally

Create an Edge Function

Create a new edge function called hello-world in your project via the Supabase CLI.

supabase functions new hello-world

Docs

Run Edge Functions locally

You can run your Edge Function locally using supabase functions serve.

supabase start # start the supabase stack
supabase functions serve # start the Functions watcher

Docs

Invoke Edge Functions locally

While serving your local Edge Functions, you can invoke it using cURL or one of the client libraries.

curl --request POST 'http://localhost:54321/functions/v1/hello-world' \
  --header 'Authorization: Bearer SUPABASE_ANON_KEY' \
  --header 'Content-Type: application/json' \
  --data '{ "name":"Functions" }'

Docs

Self-hosting Edge Functions

Supabase Edge Runtime consists of a web server based on the Deno runtime, capable of running Javascript, Typescript, and WASM services. You may self-host edge functions on providers like Fly.io, Digital Ocean, or AWS.

Docs

GitHub

Explore our templates

Simple Hello World

Basic function that returns a JSON response

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Example using Supabase client to query your database

Supabase Storage Upload

Upload files to Supabase Storage

Node Built-in API Example

Example using Node.js built-in crypto and http modules

Express Server

Example using Express.js for routing

Stream text with AI SDK

Generate and stream text with Vercel AI SDK

Generate recipes with AI SDK

Generate structured cooking recipes with Vercel AI SDK

Stripe Webhook Example

Handle Stripe webhook events securely

Send Emails

Send emails using the Resend API

Image Transformation

Transform images using ImageMagick WASM

Websocket Server Example

Create a real-time WebSocket server