headers_middleware

Documentation

Overview

Example of request/response header manipulation using a middleware.

Header Manipulation Example

This example shows how to use the new request header manipulation features alongside existing response header functionality:

1. Request Header Operations:

• Remove potentially sensitive headers (X-Forwarded-For)
• Add custom request headers (X-Internal-Request)
• Set specific request headers (X-Request-Source)

2. Response Header Operations:

• Add security headers (X-Frame-Options)
• Set custom API headers (X-API-Version)
• Remove server identification headers (Server)

3. Header Inspection Route:

• Displays all request headers received by the handler
• Shows how request headers are modified before reaching handlers
• Demonstrates response headers are added after handler execution

The middleware processes headers in this order: Request: remove → set → add (before calling handler) Response: remove → set → add (after handler returns)