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1package controller
2
3import (
4 "encoding/base64"
5 // "image"
6 // "image/color"
7
8 "github.com/skip2/go-qrcode"
9)
10
11func GenerateQRCode(data string) (string, error) {
12 imgBytes, err := qrcode.Encode(data, qrcode.Medium, 256)
13 if err != nil {
14 return "", err
15 }
16 base64Img := base64.StdEncoding.EncodeToString(imgBytes)
17 return base64Img, nil
18}
19
20// vvv DEPRECATED vvv
21// const margin = 4
22//
23// type QRCodeECCLevel int64
24// const (
25// LOW QRCodeECCLevel = iota
26// MEDIUM
27// QUARTILE
28// HIGH
29// )
30//
31// func drawLargeAlignmentSquare(x int, y int, img *image.Gray) {
32// for yi := range 7 {
33// for xi := range 7 {
34// if (xi == 0 || xi == 6) || (yi == 0 || yi == 6) {
35// img.Set(x + xi, y + yi, color.Black)
36// } else if (xi > 1 && xi < 5) && (yi > 1 && yi < 5) {
37// img.Set(x + xi, y + yi, color.Black)
38// }
39// }
40// }
41// }
42//
43// func drawSmallAlignmentSquare(x int, y int, img *image.Gray) {
44// for yi := range 5 {
45// for xi := range 5 {
46// if (xi == 0 || xi == 4) || (yi == 0 || yi == 4) {
47// img.Set(x + xi, y + yi, color.Black)
48// }
49// }
50// }
51// img.Set(x + 2, y + 2, color.Black)
52// }