Request: Add Full Example ( Doc ) for Google Login Flow with openid-client v6.4 in bare nodejs application.

[Be1newinner]

Hi maintainers 👋,

First off, thank you for maintaining this incredible library. openid-client has been a great asset in integrating secure authentication flows.

While integrating [email protected] with Google OAuth, I found the documentation to be very detailed on individual methods but a bit lacking in terms of a complete, beginner-friendly example that ties everything together for a common use case like Google login using PKCE.

I’d love to propose adding the following example to the documentation (or even the examples directory) to help developers new to the library quickly understand the flow from discovery to building an authorization URL:

import "dotenv/config"
import * as openid from 'openid-client';

const CLIENT_ID = process.env.GOOGLE_CLIENT_ID;
const CLIENT_SECRET = process.env.GOOGLE_CLIENT_SECRET;
const REDIRECT_URL = process.env.REDIRECT_URI;
const SERVER_URL = "https://accounts.google.com";

async function openConnect({ server_uri, clientId, clientSecret, redirect_uri }) {
    try {
        const client = await openid.discovery(server_uri, clientId, clientSecret);

        const codeVerifier = openid.randomPKCECodeVerifier();
        const codeChallenge = await openid.calculatePKCECodeChallenge(codeVerifier);

        const authUrl = openid.buildAuthorizationUrl(client, {
            redirect_uri,
            scope: 'openid email profile',
            code_challenge: codeChallenge,
            code_challenge_method: 'S256',
        });

        console.log('Visit this URL to authorize:', authUrl);
    } catch (error) {
        console.error('Error during OpenID flow:', error);
    }
}

openConnect({
    clientId: CLIENT_ID,
    clientSecret: CLIENT_SECRET,
    server_uri: new URL(SERVER_URL),
    redirect_uri: new URL(REDIRECT_URL)
});

This snippet covers:

• Client discovery via .discovery()
• PKCE code generation
• Building an auth URL with recommended scopes
• Support for .env and clean separation of configuration

Would it be possible to include this or a refined version of this in the official documentation or examples section? Happy to create a PR if needed.

Thanks again for all your work 🙏

Best,
Vijay kumar