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basic Node.js • basic HTML, specifically forms
skills learned
build an Express.js-powered web application • set and check sessions for users • protect application routes using middleware
Josh Cunningham
1 week · 6-8 hours per week · BEGINNER

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You’re the sole engineer for PrincipalStack, an online publication focused on teaching software engineering the right way. As part of the company’s efforts to engage new users, your job is to connect the newly built OpenID Connect server with the main web application. Using Node.js, you’ll register the new web application with the authorization server, install and configure an OpenID Connect library, implement login authorization with OAuth 2.0, and integrate the new OpenID Connect authentication with an existing set of users.

This project is designed for learning purposes and is not a complete, production-ready application or solution.

project author

Josh Cunningham

Josh Cunningham is a staff product engineer at Okta (formerly Auth0) leading a team of engineers to help partners build identity solutions. Previously, he led the onboarding program for new engineers and built open-source SDKs to help customers connect their applications to Auth0 using OpenID Connect, OAuth2, and SAML. Josh has been teaching and writing about technology for over two decades in various leadership, design, and engineering roles.


This liveProject is for intermediate JavaScript developers with some experience building or maintaining a web application using Node.js. To begin these liveProjects you’ll need to be familiar with the following:

  • Basic JavaScript (declare variables, use loops and branches, object and array destructuring, debugging, error handling, etc.)
  • Basic Node.js (including npm and Express.js)
  • Basic command line/terminal proficiency
  • Intermediate in-browser development tool use (such as network call tracing (including URL parameters and request headers) and cookie management)
  • Basic HTML, specifically forms


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