Astro's middleware API lets you geo-personalize content before it ships to the visitor. Here's a complete drop-in implementation with ApogeoAPI + caching.
Detect a visitor's country before your page renders and route them to the right locale. Works on every Vercel plan, no extra runtime cost. Full code below.
ApogeoAPI exposes webhooks so your downstream caches can react to country, state, or city updates instead of polling. Setup, payload spec, and signature verification.
A step-by-step tutorial to build a searchable country selector dropdown in React using the ApogeoAPI countries endpoint. Includes flags, ISO codes, and TypeScript types.
