HEXLE Scanner – QR Code Control Application
HEXLE Scanner is a lightweight, browser-based QR code scanning application built with native PHP and JavaScript. It is designed to scan QR codes via device cameras and display real-time validation results from HEXLE backend APIs.
The primary use case is its integration with HEXLE Ticket, where the scanner is used at event entrances to validate tickets instantly and reliably.
Role & Responsibilities
Developer
I was responsible for the core application logic, including the QR scanning workflow, API communication, and result handling, with a focus on reliability, speed, and reusability across HEXLE products.
Core Technologies
- PHP
- JavaScript
- HTML, CSS
- REST APIs
Integration & Architecture
- Browser-based QR code scanning using camera access
- Native PHP backend handling API communication
- Real-time REST API requests to HEXLE backend services
- Modular design allowing reuse across multiple HEXLE SaaS applications
Key Contributions & Impact
- Implemented a reliable QR code scanning workflow directly in the web browser
- Built real-time API validation logic for ticket and code verification
- Integrated the scanner seamlessly with HEXLE Ticket for live event access control
- Designed result handling and feedback logic for fast, clear operator decisions
- Created a reusable scanning solution applicable to multiple HEXLE products
Learnings & Takeaways
- Practical experience building camera-based web applications
- Strong understanding of real-time validation workflows using REST APIs
- Experience designing reusable internal tools for a growing SaaS ecosystem
- Insights into building fast, reliable entry-control systems for live events