Data Visualization

Charts & Graphs

Recommended Library: Recharts (React-friendly, declarative)

Requirements:

Responsive charts (adapt to container width)
Accessible (ARIA labels, keyboard navigation)
Consistent color palette (use design tokens)
Interactive tooltips

Chart Types Needed:

Line charts: Campaign performance over time
Bar charts: Comparative metrics
Pie/Donut charts: Distribution (open rate, click rate)
Area charts: Cumulative metrics

Real-time Updates

Pattern: Server-Sent Events (SSE) or WebSockets

Use Cases:

Live campaign sending status
Real-time analytics updates
Notification feed

Implementation:

// Server-Sent Events for one-way updates
const eventSource = new EventSource('/api/campaigns/123/live');
eventSource.onmessage = (event) => {
  const data = JSON.parse(event.data);
  updateCampaignMetrics(data);
};