@clerk/edge

@clerk/edge

Changelog · Report a Bug · Request a Feature · Ask a Question

---

Deprecation warning

This package has been deprecated in favor of the isomorphic @clerk/backend which is now used across all server-enabled Clerk packages. This package will not receive any future updates. It should not be used directly - please use as a reference only.

Overview

This package is a wrapper around Clerk core capabilities with added functionality and helpers aimed towards different edge and serverless platforms.

Getting Started

Installation

npm install @clerk/edge

Build

To build the package locally with the TypeScript compiler, run:

npm run build

Supported platforms

Currently supported environments/platforms:

Vercel Edge Functions

To use with Edge Functions:

import { withAuth } from '@clerk/edge/vercel-edge';

async function handler(req, event) {
  // ...
}

export const middleware = withAuth(handler);

Supported methods:

• withAuth
• verifySessionToken
• Resources API through ClerkAPI

Usage

Validate the Authorized Party of a session token

Clerk's JWT session token, contains the azp claim, which equals the Origin of the request during token generation. You can provide the middlewares with a list of whitelisted origins to verify against, to protect your application of the subdomain cookie leaking attack.

Example implementation:

import { withAuth } from '@clerk/edge/vercel-edge';

const authorizedParties = ['http://localhost:3000', 'https://example.com'];

async function handler(req, event) {
  // ...
}

export const middleware = withAuth(handler, { authorizedParties });

For further details and examples, please refer to our Documentation.

Support

You can get in touch with us in any of the following ways:

• Join our official community Discord server
• Open a GitHub support issue
• Contact options listed on our Support page

Contributing

We're open to all community contributions! If you'd like to contribute in any way, please read our contribution guidelines.

Security

@clerk/edge follows good practices of security, but 100% security cannot be assured.

@clerk/edge is provided "as is" without any warranty. Use at your own risk.

For more information and to report security issues, please refer to our security documentation.

License

This project is licensed under the MIT license.

See LICENSE for more information.