Scheduling System Demo
Add an event to see how a simple scheduler might structure bookings and avoid conflicts. This demo is intentionally lightweight and runs purely client-side. Below is a breakdown on how a production level project would be architected and the tradeoffs involved in key decisions.
About the Scheduling System
- Frontend focus: calendar interaction design, state transitions between week/month/year views, and validation UX for quick event creation.
- Problem: Users need to schedule events with conflict detection and timezone handling.
- Architecture: Client → API → Booking Service → Postgres + Redis
- Key Decisions:
- Used Postgres row-level locking to prevent double bookings
- Stored all timestamps in UTC
- Cached availability queries in Redis
- Tradeoffs:
- Strong consistency vs latency
- Cache invalidation complexity
- Scaling:
- Read replicas for availability queries
- Horizontal scaling of booking service
Create an Event
Date
May 2026
SunMonTueWedThuFriSat
Selected: 2026-05-27
Info
This demo uses local state, but a real scheduling system would store events in a database, validate availability, and enforce business rules (e.g., minimum lead time, maximum advance booking period, time zone awareness).
This week
Monday, May 25
5/25/2026
2026
No events yet.
Tuesday, May 26
5/26/2026
2026
No events yet.
Wednesday, May 27
5/27/2026
2026
No events yet.
Thursday, May 28
5/28/2026
2026
No events yet.
Friday, May 29
5/29/2026
2026
No events yet.
Saturday, May 30
5/30/2026
2026
No events yet.
Sunday, May 31
5/31/2026
2026
No events yet.
Tip: Open the browser console and type events to inspect the in-memory schedule list.