Kern
Middleware guides

Middleware - RateLimiter

Detailed guide to middleware.RateLimiter with fixed-window controls and practical API protection examples.

middleware.RateLimiter

Limits request rates using a fixed-window strategy.

Signature

func RateLimiter(configs ...RateLimiterConfig) kern.MiddlewareFunc

Example

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

app.Use(middleware.RateLimiter())

Notes

  • Apply stricter limits to login, token, and expensive compute endpoints.
  • Combine with request ID and logger middleware for incident visibility.

Middleware - Timeout

Detailed guide to middleware.Timeout for request deadline control and runaway handler protection.

Middleware - JWT

Detailed guide to middleware.JWT for HS256 token validation and claims-aware route protection.

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middleware.RateLimiterSignatureExampleNotes