Fullstack Javascript
Course Notes
08 - SSO (single sign on)
7. Examples

7. Examples

Objective

The goal of the following example is to demonstrate how to build a fullstack authentication flow using Express and EJS, incorporating various login and signup methods, including Single Sign-On (SSO) integration.

Example: Fullstack Authentication Flow

Ask

  • Extend the base app to support multiple user authentication methods: SSO login, manual signup, and SSO signup.
  • A base repository can be found here

Features

  1. Add SSO Login:

    • Integrate Single Sign-On (SSO) functionality, allowing users to log in via an external identity provider (IdP) such as GitHub.
    • After successful authentication via the IdP, users are redirected to their dashboard.

  2. Add Signup:

    • Implement a manual signup route where users can create an account with an email and username.
    • Ensure that users cannot register with an email that already exists in the system.

  3. Add SSO Signup:

    • If a user logs in via SSO and does not already have an account, prompt them to create a new account using the username and email provided by the IdP.
    • Automatically log in the user after they successfully sign up.