Data-Driven Panel Pattern

Create dashboard panels that seamlessly integrate UI construction with resilient data fetching. Each panel is a self-contained component that manages its own data lifecycle.

Architecture Overview

Panel (base class)
├── element: HTMLElement (outer container)
│   ├── header (title, status indicators)
│   └── content (data display area)
└── DataService (internal)
    ├── Circuit Breaker (failure handling)
    └── Caching layer

Implementation

1. Base Panel with Integrated Data Service