Request Handler

Definitions

1. A function or method that receives an incoming HTTP request, executes the business logic for that endpoint (reading/writing data, calling services, validating input), and returns an HTTP response. In Express it's a route callback, in Django a view function, in Spring a controller method.

   In plain English: The function in your web application that actually does the work when someone visits a specific URL or submits a form.

   Example: "The GET /users/:id handler looks up the user, returns 200 with the profile JSON, or 404 if not found."

Related Terms

• JSON API
• Request Context
• Route
• Route Handler
• Route Middleware
• Router
• URL Router
• Web API
• Web Framework
• Web Server
• API Framework
• Authentication Handler
• Cache Control
• Cache Proxy
• Content Encoding