Hello, and welcome to my devlog. This is where I talk about whatever coding I’ve been up to recently. Queries to ajsWritesCode@gmail.com.

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Classroom Buzzer App

I started working on a new project today.

The client is an educational services provider and wants me to develop a tool to facilitate in-person group activities. This tool should:

• provide a platform which students can log into from a mobile device, in a frictionless process that takes seconds
• allow a teacher to assign groups and pairs in
• allow the teacher to dynamically reassign groups without repeating combinations
• implement a simple score-keeping functionality
• be able to run a ‘buzzer’ game
• have a clean, appealing, and user-friendly UI

A quick read of this brief should make it clear that what is required here is a server capable of handling multiple, live, two-way connections. The server needs to be able to update the clients whenever the teacher wants to shuffle the groups, and the buzzer game requires that when a student ‘buzzes’, state is propagated via the server to all other clients. The solution to this problem is websockets, and a server capable of handling concurrency.