Back to Projects
Pet Blessing 2026: Registration and Event-Day Check-in
FullstackOffline-firstEvent Tech
Pet Blessing and Fashion Pawrade 2026 are part of a parish carnival in Malang. One owner can register several pets in a single submission, and every registration gets a QR code by WhatsApp. The committee has recap pages, photo and payment proof review, and QR exports. For event day I built a check-in flow where the first to arrive is called first: two desks share one locked counter so numbers never collide, a waiting room screen calls the next number, and a local server keeps everything running offline while syncing to the cloud when the connection is back.
Role
Fullstack Engineer
Tools
HTML, JavaScript, PostgreSQL, Node.js, WhatsApp bot
Outcome
Registration is live. The check-in system was load tested with simultaneous check-ins, internet outages, and a server failover before event day.

1 / 5