Dynamic Routes

Dynamic routes capture URL segments as parameters. Use folder names in square brackets, e.g. [id] or [slug]. The captured values are available in your handler as req.params.

Syntax

• Folder name: [paramName] — one segment.
• Example: api/products/[id]/route.ts → /api/products/123 with req.params.id === "123".

For multiple segments or validation, see the full guide.

For full documentation, examples, and validation, see Dynamic Routes.