QRCode.go

package main

import (
	"github.com/kiktomo/goqr"
	"image/png"
	"os"
)

func main() {

	// "0123456789" -> Numeric mode
	// "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ $%*+-./:" -> Alphanumeric mode
	// "HELLO WORLD" -> Alphanumeric mode (upper-case only)
	// "Hello world" -> 8BitByte mode
	txt := "HELLO WORLD"

	// QRcode version:7
	// version := 0 (Auto)
	version := 7

	// QRcode error correction level: "M"
	// eclevel := 0 (Auto)
	eclevel := goqr.ECLevelM

	// Encode() returns image.Image
	qr, err := goqr.Encode(txt, version, eclevel)
	if err != nil {
		return
	}

	// png file output
	f, _ := os.Create("./qrcode.png")
	defer f.Close()
	png.Encode(f, qr)
}

package main

import qrcode "github.com/skip2/go-qrcode"
import "fmt"

func main() {
    err := qrcode.WriteFile("https://dev-article.beautifulreading.com/static/html/login.html", qrcode.Medium, 256, "qr.png")
  if err != nil {
    fmt.Print(err)
  }
}