https://github.com/claudiu28/ticketing-app-java

Ticketing system for basketball tournaments, built with JavaFX client, gRPC communication, and asynchronous backend using CompletableFuture with SQLite. Implements Observer and Proxy patterns for real-time updates of ticket availability and sales.
https://github.com/claudiu28/ticketing-app-java

client-server completable-future grpc java javafx observer-pattern proxy-pattern sqlite3

Last synced: 5 months ago
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Ticketing system for basketball tournaments, built with JavaFX client, gRPC communication, and asynchronous backend using CompletableFuture with SQLite. Implements Observer and Proxy patterns for real-time updates of ticket availability and sales.

• Host: GitHub
• URL: https://github.com/claudiu28/ticketing-app-java
• Owner: claudiu28
• Created: 2025-08-23T15:24:38.000Z (5 months ago)
• Default Branch: master
• Last Pushed: 2025-08-23T15:42:03.000Z (5 months ago)
• Last Synced: 2025-08-24T05:49:48.501Z (5 months ago)
• Topics: client-server, completable-future, grpc, java, javafx, observer-pattern, proxy-pattern, sqlite3
• Language: Java
• Homepage:
• Size: 234 KB
• Stars: 0
• Watchers: 0
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

          
# 🎟️ Ticketing System

A desktop ticketing system for managing basketball tournament tickets.  

The application provides authentication, ticket sales, search, and logout features.

It utilizes **JavaFX** for the client, **gRPC** for communication, **CompletableFuture** for asynchronous backend operations, and adheres to the **Observer pattern with Proxy** to broadcast live updates to all connected clients.

---

## ✨ Features

1. **Login**

   - Cashier authenticates with username & password (stored as BCrypt hashes).

   - On success, a window opens showing all matches (Team A vs Team B, Semifinals, Final), ticket price, and available seats.

2. **Ticket Sale**

   - Sell tickets for a match by entering the customer's name, address, and number of seats.

   - All other clients immediately see updated availability (Observer pattern).

   - If no seats remain, the match is marked **SOLD OUT** in red.

3. **Search**

   - Search tickets purchased by a client using name and/or address.

   - If multiple clients share the same name, all their tickets are shown.

   - Results display customer name, address, match, and number of seats.

4. **Logout**

   - Ends the session and disconnects the user from the system.

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## 🧰 Tech Stack

- Java 17+

- JavaFX (desktop UI)

- gRPC + Protocol Buffers

- SQLite + JDBC

- BCrypt (password hashing)

- CompletableFuture (async backend)

- Observer & Proxy design patterns

- 

---

## 🔐 Security Notes

Passwords are never stored in plain text (only BCrypt hashes).

Password hashes are not returned in gRPC responses.

Sessions tracked to prevent duplicate logins.

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## 🖼️ Screenshots

  

    

      


      Login

    

    

      


      Matches List

    

  

  

    

      


      Search

    

    

      


      Ticket Sale