API Routes

Official docs: Routing

API routes are server-only HTTP endpoints. Name files with the +api.ts suffix.

When to Use

• REST API endpoints
• Webhook handlers
• Form submissions
• Server-side operations (database writes, external API calls)
• Authentication endpoints

When NOT to Use

• Fetching data for a page — use loaders instead
• Client-side logic — use regular components
• Static data — use SSG with loaders