Function Configuration

Configure individual function behavior. Customize authentication, dependencies, and other settings per function.

Configuration#

By default, all your Edge Functions have the same settings. In real applications, however, you might need different behaviors between functions.

For example:

• Stripe webhooks need to be publicly accessible (Stripe doesn't have your user tokens)
• User profile APIs should require authentication
• Some functions might need special dependencies or different file types

To enable these per-function rules, create supabase/config.toml in your project root:

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# Disables authentication for the Stripe webhook.[functions.stripe-webhook]verify_jwt = false# Custom dependencies for this specific function[functions.image-processor]import_map = './functions/image-processor/import_map.json'# Custom entrypoint for legacy function using JavaScript[functions.legacy-processor]entrypoint = './functions/legacy-processor/index.js

This configuration tell Supabase that the stripe-webhook function doesn't require a valid JWT, the image-processor function uses a custom import map, and legacy-processor uses a custom entrypoint.

You set these rules once and never worry about them again. Deploy your functions knowing that the security and behavior is exactly what each endpoint needs.

Skipping authorization checks#

By default, Edge Functions require a valid JWT in the authorization header. If you want to use Edge Functions without Authorization checks (commonly used for Stripe webhooks), you can configure this in your config.toml:

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[functions.stripe-webhook]verify_jwt = false

You can also pass the --no-verify-jwt flag when serving your Edge Functions locally:

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supabase functions serve hello-world --no-verify-jwt

Custom entrypoints#

When you create a new Edge Function, it will use TypeScript by default. However, it is possible to write and deploy Edge Functions using pure JavaScript.

Save your Function as a JavaScript file (e.g. index.js) update the supabase/config.toml :

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[functions.hello-world]entrypoint = './index.js' # path must be relative to config.toml

You can use any .ts, .js, .tsx, .jsx or .mjs file as the entrypoint for a Function.