fiber/docs/middleware/rewrite.md

id
rewrite

Rewrite

Rewrite middleware rewrites the URL path based on provided rules. It can be helpful for backward compatibility or just creating cleaner and more descriptive links.

Signatures

func New(config ...Config) fiber.Handler

Config

Property	Type	Description	Default
Next	func(fiber.Ctx) bool	Next defines a function to skip middleware.	nil
Rules	map[string]string	Rules defines the URL path rewrite rules. The values captured in asterisk can be retrieved by index.	(Required)

Examples

package main

import (
    "github.com/gofiber/fiber/v3"
    "github.com/gofiber/fiber/v3/middleware/rewrite"
)

func main() {
    app := fiber.New()
    
    app.Use(rewrite.New(rewrite.Config{
      Rules: map[string]string{
        "/old":   "/new",
        "/old/*": "/new/$1",
      },
    }))
    
    app.Get("/new", func(c fiber.Ctx) error {
      return c.SendString("Hello, World!")
    })
    app.Get("/new/*", func(c fiber.Ctx) error {
      return c.SendString("Wildcard: " + c.Params("*"))
    })
    
    app.Listen(":3000")
}

Test

curl http://localhost:3000/old
curl http://localhost:3000/old/hello