fresh

根据HTTP请求头与响应头判断是否未修改(304 Not Modified)。

Example

package main
import (
    "bytes"
    "github.com/vicanso/elton"
    "github.com/vicanso/elton/middleware"
)
func main() {
    e := elton.New()
    e.Use(middleware.NewDefaultFresh())
    e.Use(middleware.NewDefaultETag())
    e.GET("/", func(c *elton.Context) (err error) {
        c.BodyBuffer = bytes.NewBufferString("abcd")
        return
    })
    err := e.ListenAndServe(":3000")
    if err != nil {
        panic(err)
    }
}