中间件 ​

package main

import (
	"net/http"
	"github.com/cquestor/gone"
)

func HelloHandler(ctx *gone.Context) gone.IResponse {
	if ctx.Query("type") == "after" {
		return nil
	}
	return gone.String(http.StatusOK, "Hello!\n")
}

func BeforeHandler(ctx *gone.Context) gone.IResponse {
	if ctx.Query("type") == "before" {
		return gone.String(http.StatusOK, "from before")
	}
	return nil
}

func AfterHandler(ctx *gone.Context) gone.IResponse {
	return gone.String(http.StatusOK, "from after")
}

func main() {
	g := gone.New()
	g.Before(BeforeHandler)
	g.After(AfterHandler)
	g.Get("/hello", HelloHandler)
	g.Run()
}