All projects
WebTeam of 5 members — back-end/API· 2023
Bus Station Service
An online bus-ticket booking system — REST API with Spring Boot and real-time seat selection.
About this product
Graduation thesis: a bus-ticket booking system with a customer storefront, an admin area and a REST API built with Spring Boot. Customers search trips by origin/destination & date, pick seats visually and book tickets; admins manage trips, buses, routes, staff, users and orders from a dashboard. The highlight is real-time seat selection over WebSocket — when several people book the same trip they instantly see seats being held/released. I was responsible for the back-end (API). A 5-member team project.
Highlights
- Booking: search trips by route & date, pick seats, book tickets
- Real-time seat selection over WebSocket (instant hold/release)
- Authentication & authorization with Spring Security + JWT
- Admin: manage trips, buses, routes, staff and orders
- Sales dashboard
- API docs with Swagger, DB migrations with Flyway
What I learned
- ✓Designing a sizable REST API with Spring Boot (trips, seats, tickets, users modules)
- ✓Handling real-time concurrency with WebSocket when many users pick seats at once
- ✓Stateless security with JWT & role-based authorization (Spring Security)
- ✓Database version control with Flyway migrations
- ✓Deploying the API to the cloud (Railway) and documenting it with Swagger
- ✓Working in a 5-member team: splitting modules & managing code with Git
Screenshots
Tech used
JavaSpring BootSpring SecurityJWTSpring Data JPAPostgreSQLWebSocketFlywaySwagger