IP-based Country Detection for Auto-redirect

[SakshiKekre]

Implements automatic country detection and redirect at root path (/) using IP geolocation.

Implementation

• Primary provider: ipapi.co (30k free requests/month, no API key required)
• Fallback: Browser language detection
• Cache: 4-hour localStorage TTL for traveling users
• Note: ipinfo.io provider tested but not active (50k free tier available if needed)

Performance Testing

Tested detection timing from initial page load:

• IP detection: ~333ms
• Total time to redirect: ~4.8s (mostly React app initialization)

Architecture

• Chain of responsibility pattern for provider fallbacks
• Geolocation service under /routing since it's routing-specific
• Clean separation: providers handle detection, service orchestrates, component handles UI

Why ipapi.co

• Larger free tier than alternatives
• Simple country-only endpoint (2 bytes vs full JSON)
• No API key complexity for development
• Reliable ~300ms response times

[anth-volk]

Small changes requested, but feel confident we can get this in today.