Hi! I'm Jan Kleinert.

To help my daughters with their sight reading, I built a simple web app that displays a note on the staff, and while connected to a digital piano or keyboard, it uses the Web MIDI API to let them know if they played the right note that corresponds with what's on the staff. To build this web app, I had to learn about MIDI and the Web MIDI API. In this article, I'll share what I learned and how the web app was created...

In Part 1 of this tutorial, we went step-by-step through the process of building a web app with Node.js and Express that uses express-session and connect-redis as a way of helping users understand how session management works. In this second part, we will expand on the previous app...

Recently, I set out to create a demo application for my talk at Redis Day NYC that illustrates how session management works in a Node.js/Express web app, using Redis as the session store and then adds authentication...