Comparison API:
- GET /api/v1/analytics/compare?childIds=id1,id2&metric=sleep-patterns&startDate=...&endDate=...
- Supports 2+ children comparison
- Validates user access to all children
- Date range validation with ISO 8601 format
Supported Metrics:
- sleep-patterns: Average hours, night sleep %, nap frequency, daily breakdown
- feeding-frequency: Total feedings, average per day, methods, amounts
- diaper-changes: Total changes, wet/dirty/both breakdown
- activities: Total count, types distribution, most common activity
ComparisonService:
- compareSleepPatterns() - Detailed sleep analysis with night vs day sleep
- compareFeedingFrequency() - Feeding patterns and methods tracking
- compareDiaperChanges() - Diaper change patterns by type
- compareActivities() - Activity type distribution and frequency
Response Structure:
{
metric: "sleep-patterns",
dateRange: { start, end },
children: [{
childId, childName, age,
data: { detailed metrics },
summary: { key stats }
}],
overallSummary: {
averageAcrossChildren,
childWithMost/Least,
...
}
}
Daily Breakdown:
- Each metric includes day-by-day data
- Allows chart rendering on frontend
- Supports trend analysis
Use Cases:
- "How does Emma's sleep compare to Noah's?"
- "Which child eats more frequently?"
- "Compare diaper patterns for twins"
- Side-by-side analytics dashboards
Security:
- Family-level permission checks
- User must have access to all children
- Cross-family comparison supported
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
Andrei
2c9ae0c3bf