@clerk/chrome-extension

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Overview

Clerk is the easiest way to add authentication and user management to your chrome extension. To gain a better understanding of the Clerk React SDK and Frontend API, refer to the Node SDK and Backend API documentation.

Getting Started

To use this package you should first create a Clerk application and retrieve a Publishable Key for you application to be used as environment variables VITE_CLERK_PUBLISHABLE_KEY.

Prerequisites

• Node.js >=18.17.0 or later

Installation

npm install @clerk/chrome-extension

Usage

Standalone usage snippet:

// App.tsx
import { SignedIn, SignedOut, SignIn, SignUp, ClerkProvider } from '@clerk/chrome-extension';
import { useNavigate, Routes, Route, MemoryRouter } from 'react-router-dom';

function HelloUser() {
  return <p> Hello user</p>;
}

const publishableKey = process.env.VITE_CLERK_PUBLISHABLE_KEY || '';

function ClerkProviderWithRoutes() {
  const navigate = useNavigate();

  return (
    <ClerkProvider
      publishableKey={publishableKey}
      routerPush={to => navigate(to)}
      routerReplace={to => navigate(to, { replace: true })}
    >
      <Routes>
        <Route
          path='/sign-up/*'
          element={<SignUp signInUrl='/' />}
        />
        <Route
          path='/'
          element={
            <>
              <SignedIn>
                <HelloUser />
              </SignedIn>
              <SignedOut>
                <SignIn
                  afterSignInUrl='/'
                  signUpUrl='/sign-up'
                />
              </SignedOut>
            </>
          }
        />
      </Routes>
    </ClerkProvider>
  );
}

function App() {
  return (
    <MemoryRouter>
      <ClerkProviderWithRoutes />
    </MemoryRouter>
  );
}

export default App;

WebSSO usage snippet:

// App.tsx
// use same code with the above & add the syncSessionWithTab prop in <ClerkProvider/>

// ...
<ClerkProvider
  publishableKey={publishableKey}
  routerPush={to => navigate(to)}
  routerReplace={to => navigate(to, { replace: true })}
  syncSessionWithTab
>
  {/* ... */}
</ClerkProvider>
// ...

Examples of a chrome extension using the @clerk/chrome-extension package for authentication can be found in our clerk-chrome-extension-starter github repository. The 2 supported cases (links to different branches of the same repository):

• Standalone: The extension is using its own authentication
• WebSSO: The extensions shares authentication with a website in the same browser

WebSSO required settings

Extension Manifest (manifest.json)

Permissions

You must enable the following permissions in your manifest.json file:

"permissions": ["cookies", "storage"]

• For more info on the "cookies" permission: (Google Developer Cookies Reference)[https://developer.chrome.com/docs/extensions/reference/cookies/]
• For more info on the "storage" permission: (Google Developer Storage Reference)[https://developer.chrome.com/docs/extensions/reference/storage/]

Host Permissions

You must enable the following host permissions in your manifest.json file:

• Development: "host_permissions": ["http://localhost"]
  • If you're using a domain other than localhost, you'll want replace that entry with your domain: http://<DOMAIN>
• Production: "host_permissions": ["https://<YOUR_CLERK_FRONTEND_API_GOES_HERE>/"]
  • Your Frontend API URL can be found in Clerk Dashboard > API Keys > Advanced > Clerk API URLs.

For more info on host permissions: (Google Developer host_permissions Reference)[https://developer.chrome.com/docs/extensions/mv3/declare_permissions/#host-permissions]

Clerk Settings

Add your Chrome extension origin to your instance allowed_origins using BAPI:

curl  -X PATCH https://api.clerk.com/v1/instance \
      -H "Authorization: Bearer sk_secret_key" \
      -H "Content-type: application/json" \
      -d '{"allowed_origins": ["chrome-extension://extension_id_goes_here"]}'

Deploy to Production

Setting the allowed_origins (check Clerk Settings) is REQUIRED for both Development and Production instances when using the WebSSO use case.

Learn More

You can learn more in the Create React App documentation.

To learn React, check out the React documentation.

Support

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

• Join our official community Discord server
• Create a GitHub Discussion
• 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/chrome-extension follows good practices of security, but 100% security cannot be assured.

@clerk/chrome-extension 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.