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Fix crash when plugin_config['feeds'] exists but is None, causing
TypeError when checking 'custom_feeds' in feeds_config.
Problem:
- When plugin_config['feeds'] exists but is None, dict.get('feeds', {})
returns None (not the default {}) because dict.get() only uses default
when key doesn't exist, not when value is None
- Line 3642's 'custom_feeds' in feeds_config raises TypeError because
None is not iterable
- This can crash the API endpoint if a plugin config has feeds: null
Solution:
- Change plugin_config.get('feeds', {}) to plugin_config.get('feeds') or {}
to ensure feeds_config is always a dict (never None)
- Add feeds_config check before 'in' operator for extra safety
This ensures the code gracefully handles feeds: null in plugin configuration.
LED Matrix Web Interface V3
Modern, production web interface for controlling the LED Matrix display.
Overview
This directory contains the active V3 web interface with the following features:
- Real-time display preview via Server-Sent Events (SSE)
- Plugin management and configuration
- System monitoring and logs
- Modern, responsive UI
- RESTful API
Directory Structure
web_interface/
├── app.py # Main Flask application
├── start.py # Startup script
├── run.sh # Shell runner script
├── requirements.txt # Python dependencies
├── blueprints/ # Flask blueprints
│ ├── api_v3.py # API endpoints
│ └── pages_v3.py # Page routes
├── templates/ # HTML templates
│ └── v3/
│ ├── base.html
│ ├── index.html
│ └── partials/
└── static/ # CSS/JS assets
└── v3/
├── app.css
└── app.js
Running the Web Interface
Standalone (Development)
From the project root:
python3 web_interface/start.py
Or using the shell script:
./web_interface/run.sh
As a Service (Production)
The web interface can run as a systemd service that starts automatically based on the web_display_autostart configuration setting:
sudo systemctl start ledmatrix-web
sudo systemctl enable ledmatrix-web # Start on boot
Accessing the Interface
Once running, access the web interface at:
- Local: http://localhost:5000
- Network: http://:5000
Configuration
The web interface reads configuration from:
config/config.json- Main configurationconfig/secrets.json- API keys and secrets
API Documentation
The V3 API is available at /api/v3/ with the following endpoints:
Configuration
GET /api/v3/config/main- Get main configurationPOST /api/v3/config/main- Save main configurationGET /api/v3/config/secrets- Get secrets configurationPOST /api/v3/config/secrets- Save secrets configuration
Display Control
POST /api/v3/display/start- Start display servicePOST /api/v3/display/stop- Stop display servicePOST /api/v3/display/restart- Restart display serviceGET /api/v3/display/status- Get display service status
Plugins
GET /api/v3/plugins- List installed pluginsGET /api/v3/plugins/<id>- Get plugin detailsPOST /api/v3/plugins/<id>/config- Update plugin configurationGET /api/v3/plugins/<id>/enable- Enable pluginGET /api/v3/plugins/<id>/disable- Disable plugin
Plugin Store
GET /api/v3/store/plugins- List available pluginsPOST /api/v3/store/install/<id>- Install pluginPOST /api/v3/store/uninstall/<id>- Uninstall pluginPOST /api/v3/store/update/<id>- Update plugin
Real-time Streams (SSE)
GET /api/v3/stream/stats- System statistics streamGET /api/v3/stream/display- Display preview streamGET /api/v3/stream/logs- Service logs stream
Development
When making changes to the web interface:
- Edit files in this directory
- Test changes by running
python3 web_interface/start.py - Restart the service if running:
sudo systemctl restart ledmatrix-web
Notes
- Templates and static files use the
v3/prefix to allow for future versions - The interface uses Flask blueprints for modular organization
- SSE streams provide real-time updates without polling