Lab № 5

[Art-Invis]

Updated Demo of the IoT App for Lab 5 ⤵️
https://drive.google.com/file/d/1qyUXYWPRXIsklk1TgaTWCRLSt_y2eMxF/view?usp=drive_link

🌐 New Features & API Integration:

• Custom REST API & Backend: Developed a dedicated Flask (Python) server with an SQLite database to manage users, IoT devices, and telemetry, moving away from simple mock data. Integrated via the dio package.
• Token-Based Security: Upgraded the authentication flow. The app now receives a secure access_token from the server, heavily encrypted and stored using flutter_secure_storage.
• Asynchronous UI (FutureBuilder): Completely re-architected the Dashboard device list to fetch cloud nodes dynamically using FutureBuilder.
• Offline Mode & Local Caching (Core Requirement): Implemented a robust fallback system. If the device loses internet connection, the app seamlessly loads the user profile and IoT nodes from the local cache (SharedPreferences).
• Full Cloud CRUD & Sync: Devices and user profiles are now fully synchronized with the cloud. Added the ability to Create, Update, and Delete IoT nodes globally. Added a "System Purge" feature to completely delete the cloud account and all associated data.