Deployed
My Trip
Flight and hotel booking platform focused on concurrency management, fast user experience, and scalable architecture
Next.js · TypeScript · Node.js · Express.js · MongoDB · Mongoose
Architecture design and full-stack development
Personal project — under development and optimization
Next.js · TypeScript · Node.js · Express.js · MongoDB · Mongoose
Overview
My Trip is a full-stack flight and hotel booking platform built with Next.js on the frontend and Express on the backend, focused on solving real-world booking system challenges such as concurrency, capacity management, and fast user experience.
01
Problem
Booking systems require precise concurrency management to prevent double bookings, while also handling pending reservation states and providing fast search and filtering experiences for users.
02
Approach & Technical Decisions
Designing RESTful API with Express and modular structure (routes, controllers, services)
Data modeling with Mongoose for User, Flight, Hotel, Booking, and Review
Implementing authentication with JWT (access + refresh token)
Managing booking states with pending, confirmed, and cancelled statuses
Implementing automatic expiration for pending bookings (15 minutes)
Using Next.js for improved performance and frontend routing
Implementing advanced search and filtering system (by destination, date, price)
03
Challenges
Challenge 01
Preventing concurrent bookings (Race Condition)
Managing concurrency to prevent multiple users from booking the same seat or room, using conditional queries and designing towards atomic operations.
Challenge 02
Managing pending bookings and expiration
Implementing a mechanism for expiring half-completed bookings without cron jobs, using lazy cleanup on each request.
Challenge 03
Implementing optimized search and filtering
Designing a filter and search system for flight and hotel data while maintaining performance, reducing unnecessary re-renders, and improving user experience.
Challenge 04
Managing complex booking state
Controlling and keeping various booking states synchronized between client and server (pending, confirmed, expired) without creating inconsistencies.
Challenge 05
Database design for real-world scenarios
Modeling relationships between users, bookings, and resources (flights/hotels) in a scalable and extensible way.
04
Result
A full-stack booking system focused on solving real-world challenges like concurrency, capacity management, and fast search experience, providing a solid foundation for developing into a real large-scale service.