rkazn@build: ~/projects/real-time-booking-system

Ek high-concurrency booking/reservation system — double-booking prevent karne ke liye custom locking mechanism aur real-time availability sync.

Existing booking system peak hours me double-bookings kar deta tha — do log ek hi slot book kar paate the, jisse manual cancellations aur customer complaints badh rahi thi.

Ek custom locking mechanism design kiya jo high-concurrency ke waqt bhi zero double-booking guarantee karta hai, saath me real-time slot availability aur automated confirmations.

Node.jsPostgreSQLRedisWebSockets
Zero double-booking under high concurrency
Real-time slot-availability updates
Automated email/SMS confirmations
Horizontal scaling ready architecture