Web
Event Check-in (QR)
A Flask web app used at a real event: scan or type an invitation code at each gate, with no double check-ins
- Status
- Shipped
- Role
- Solo — built for a real event
- Stack
- Python · Flask · JavaScript · html5-qrcode
Problem
Guests arriving at several gates, each with their own invitation codes, and no budget or time for dedicated event software.
Approach
A small Flask app the gate staff open in a browser: scan a QR code with the device camera (html5-qrcode) or type the code, pick the gate, and see immediately whether the code was already used, and when and at which gate. A live table lists everyone checked in, and the form is validated on the server.
Result
Built in an evening and used at the actual event. Check-ins are stored in a plain file, which was right for one event with one machine per gate, and is the first thing to change for anything bigger.
