Go Example

gistfile1.go

package main

import (
	"crypto/sha256"
	"fmt"
	"io/ioutil"
	"net/http"
	"strconv"

	"github.com/labstack/echo"
)

func main() {
	e := echo.New()
	e.GET("/test/:data", getTest)
	e.Logger.Fatal(e.Start("192.168.0.14:4000"))
}

func getTest(c echo.Context) error {
	times := c.Param("data")
	b, err := ioutil.ReadFile("./data/test.dat")
	if err != nil {
		panic(err)
	}
	s := ""
	var n int
	n, err = strconv.Atoi(times)
	for i := 0; i < n; i++ {
		h := sha256.New()
		h.Write(b)
		s = fmt.Sprintf("%x", h.Sum(nil))
	}
	return c.String(http.StatusOK, s)
}