@forgerock/javascript-sdk

ForgeRock JavaScript SDK

The ForgeRock JavaScript SDK is a toolkit that allows web developers to easily integrate intelligent authentication using ForgeRock OpenAM and/or ForgeRock Identity Cloud.

Installation

npm install @forgerock/javascript-sdk

Sample Usage

In most real-world scenarios, you will want to have full control over the UI. In these cases, you can use FRAuth to obtain typed callback instances from authentication trees and render the UI in whatever way makes sense for your application.

In the following example, a simple React app iteratively calls FRAuth.next() until either an error occurs or a session token is obtained. The custom React component <UsernamePassword /> is defined to handle an authentication step named "UsernamePassword".

import { FRAuth, Config } from '@forgerock/javascript-sdk';
import React from 'react';

class App extends React.Component {
  constructor(props) {
    super(props);

    // Initialize application state
    this.state = {
      error: undefined,
      ssoToken: undefined,
      step: undefined,
    };
  }

  componentDidMount() {
    // Set configuration defaults
    Config.set({
      clientId: 'my_client_id',
      redirectUri: 'https://myapp.domain.com/callback',
      scope: 'openid profile me.read',
      serverConfig: { baseUrl: 'https://mytenant.forgeblocks.local/am/' },
      tree: 'UsernamePassword',
    });

    // Start the authentication flow
    this.nextStep();
  }

  nextStep = async (step) => {
    // Get the next step in this authentication tree
    step = await FRAuth.next(step).catch(this.onError);

    // Update application state based on the response
    let ssoToken, error;
    if (step.type === 'LoginSuccess') {
      ssoToken = step.getSessionToken();
    } else if (step.type === 'LoginFailure') {
      error = step.getCode();
    }
    this.setState({ step, ssoToken, error });
  };

  onError = (error) => {
    this.setState({ error });
  };

  render() {
    // Handle init/success/failure states
    if (!this.state.step) {
      return <p>Loading...</p>;
    } else if (this.state.ssoToken) {
      return <p>Authenticated!</p>;
    } else if (this.state.error) {
      return <p>Error: {this.state.error}</p>;
    }

    // Otherwise, select the correct component for this step
    const stage = this.state.step.getStage();
    return (
      <>
        <h1>Sign In</h1>
        {stage === 'UsernamePassword' && (
          <UsernamePassword step={this.state.step} onSubmit={this.nextStep} />
        )}
        {/* Create similar components for other stages */}
      </>
    );
  }
}

// Custom UI for rendering the "UsernamePassword" step
function UsernamePassword(props) {
  const setUsername = (e) => {
    const cb = props.step.getCallbackOfType('NameCallback');
    cb.setName(e.target.value);
  };

  const setPassword = (e) => {
    const cb = props.step.getCallbackOfType('PasswordCallback');
    cb.setPassword(e.target.value);
  };

  const onSubmit = () => {
    props.onSubmit(props.step);
  };

  return (
    <>
      <input type="text" placeholder="Username" onChange={setUsername} />
      <input type="password" placeholder="Password" onChange={setPassword} />
      <button onClick={onSubmit}>Submit</button>
    </>
  );
}

export default App;

Samples

Prerequisites:

• OpenSSL is installed
• samples/js/config.js is updated to specify your SDK configuration

# Add host
echo '127.0.0.1 forgerock-sdk-samples.com' | sudo tee -a /etc/hosts

# Install dependencies
npm i

# Generate CA and self-signed certificate
# (Pick any passphrase and use it whenever prompted)
npm run make_certs

# Build the SDK and watch for changes
npm start

# Start the sample webserver
npm run server:samples

# Follow the next section to trust certificate

Access the samples at https://forgerock-sdk-samples.com:3000

Trusting the Certificate

Trusting the certificate is required to avoid browser warnings and for WebAuthn to work correctly.

Chrome

Add the certificate to your keychain:

# MacOS
sudo npm run trust_certs

You must restart Chrome for the change to take effect.

Firefox

Import the certificate to Firefox:

1. Go to Preferences > Privacy & Security > Certificates > View Certificates...
2. On the Authorities tab, click Import...
3. Select certs/ca.crt and enable option to "Trust this CA to identify websites"
4. Restart Firefox

Tests

This project is configured for multiple forms of tests: unit, integration, and e2e. Compilation and linting occurs as a pre-commit hook, and all tests are run as a pre-push hook.

Some tests require an OpenAM instance with a public OAuth client configured. Specify your environment details in an .env file:

Variable	Purpose
AM_URL	Full URL to your OpenAM instance
BASE_URL	Base URL for your application
CLIENT_ID	Your OAuth client ID
SCOPE	The scopes to request when getting access tokens
TREE	The authentication tree name to use for authentication
USERNAME	The username to use when authenticating
PASSWORD	The password to use when authenticating

Troubleshooting

DOMException: Blocked a frame with origin "{url}" from accessing a cross-origin frame (in browser console)

This occurs when OpenAM returns the authorization code, but the redirect_uri doesn't match what's configured for the OAuth client. Tests use a path of /callback, so your OAuth client should be configured with a redirect_uri of {BASE_URL}/callback (e.g. https://forgerock-sdk-samples.com:3000/callback).

Manually view test site

To replicate the e2e environment for troubleshooting, run:

npm run server:e2e

Now browse to the following URL, replacing relevant tokens with values from your .env file:

{BASE_URL}?amUrl={AM_URL}&clientId={CLIENT_ID}&scope={SCOPE}&un={USERNAME}&pw={PASSWORD}

License

MIT