Route Handler

Definitions

1. The function or method that executes when an incoming request matches a defined route. In Express it's the callback passed to app.get(); in Next.js App Router, it's an exported GET/POST function in a route.ts file that runs on the server.

   In plain English: The piece of code that actually does the work when a web request hits a specific URL.

   Example: "The route handler parses the JSON body, validates the schema with Zod, and passes the clean data to the service layer."

Related Terms

• Jinja
• MVC
• Rails Router
• Ready State
• Request Handler
• Route
• Route Middleware
• URL Router
• User Agent