Kern
Middleware guides

Middleware - HeaderLimits

Detailed guide to middleware.HeaderLimits for request header count and size enforcement.

middleware.HeaderLimits

Rejects requests that exceed configured request header count or total header bytes.

Signature

func HeaderLimits(configs ...HeaderLimitsConfig) kern.MiddlewareFunc

Example

import "github.com/mobentum/kern/middleware"

app.Use(middleware.HeaderLimits(middleware.HeaderLimitsConfig{
    MaxHeaderCount: 80,
    MaxHeaderBytes: 12 * 1024,
}))

Notes

  • Default overflow status is 431 Request Header Fields Too Large.
  • Useful against oversized header abuse and accidental proxy/header bloat.

Middleware - SecurityHeaders

Detailed guide to middleware.SecurityHeaders for helmet-style HTTP response hardening.

Middleware - RequestGuard

Detailed guide to middleware.RequestGuard for per-route request policy enforcement (body, headers, content type, and size).

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middleware.HeaderLimitsSignatureExampleNotes