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auth0/auth0-spa-js: Auth0 authentication for Single Page Applications (SPA) with PKCE

📚 Documentation - 🚀 Getting Started - 💻 API Reference - 💬 Feedback

• Quickstart - our interactive guide for quickly adding login, logout and user information to your app using Auth0.
• Sample app - a full-fledged sample app integrated with Auth0.
• FAQs - frequently asked questions about auth0-spa-js SDK.
• Examples - code samples for common scenarios.
• Docs Site - explore our Docs site and learn more about Auth0.

Using npm in your project directory run the following command:

npm install @auth0/auth0-spa-js

From the CDN:

<script src="https://cdn.auth0.com/js/auth0-spa-js/2.3/auth0-spa-js.production.js"></script>

Create a Single Page Application in the Auth0 Dashboard.

If you're using an existing application, verify that you have configured the following settings in your Single Page Application:

• Click on the "Settings" tab of your application's page.
• Scroll down and click on the "Show Advanced Settings" link.
• Under "Advanced Settings", click on the "OAuth" tab.
• Ensure that "JsonWebToken Signature Algorithm" is set to RS256 and that "OIDC Conformant" is enabled.

Next, configure the following URLs for your application under the "Application URIs" section of the "Settings" page:

• Allowed Callback URLs: http://localhost:3000
• Allowed Logout URLs: http://localhost:3000
• Allowed Web Origins: http://localhost:3000

These URLs should reflect the origins that your application is running on. Allowed Callback URLs may also include a path, depending on where you're handling the callback (see below).

Take note of the Client ID and Domain values under the "Basic Information" section. You'll need these values in the next step.

Create an Auth0Client instance before rendering or initializing your application. You should only have one instance of the client.

import { createAuth0Client } from '@auth0/auth0-spa-js';

//with async/await
const auth0 = await createAuth0Client({
  domain: '<AUTH0_DOMAIN>',
  clientId: '<AUTH0_CLIENT_ID>',
  authorizationParams: {
    redirect_uri: '<MY_CALLBACK_URL>'
  }
});

//or, you can just instantiate the client on its own
import { Auth0Client } from '@auth0/auth0-spa-js';

const auth0 = new Auth0Client({
  domain: '<AUTH0_DOMAIN>',
  clientId: '<AUTH0_CLIENT_ID>',
  authorizationParams: {
    redirect_uri: '<MY_CALLBACK_URL>'
  }
});

//if you do this, you'll need to check the session yourself
try {
  await auth0.getTokenSilently();
} catch (error) {
  if (error.error !== 'login_required') {
    throw error;
  }
}

You can then use login using the Auth0Client instance you created:

<button id="login">Click to Login</button>

//redirect to the Universal Login Page
document.getElementById('login').addEventListener('click', async () => {
  await auth0.loginWithRedirect();
});

//in your callback route (<MY_CALLBACK_URL>)
window.addEventListener('load', async () => {
  const redirectResult = await auth0.handleRedirectCallback();
  //logged in. you can get the user profile like this:
  const user = await auth0.getUser();
  console.log(user);
});

For other comprehensive examples, see the EXAMPLES.md document.

Explore API Methods available in auth0-spa-js.

• Configuration Options

• Auth0Client

• createAuth0Client

We appreciate feedback and contribution to this repo! Before you get started, please see the following:

• Auth0's general contribution guidelines
• Auth0's code of conduct guidelines
• This repo's contribution guide

To provide feedback or report a bug, please raise an issue on our issue tracker.

Please do not report security vulnerabilities on the public GitHub issue tracker. The Responsible Disclosure Program details the procedure for disclosing security issues.

Auth0 is an easy to implement, adaptable authentication and authorization platform. To learn more checkout Why Auth0?

This project is licensed under the MIT license. See the LICENSE file for more info.

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