import { toDataURL } from 'qrcode-lite'
...
const longUrl = 'http://h5.m.taobao.com/app/smg/index.html?a=1&b=2&c=3...'
this.shortUrl = this.getShortUrl(longUrl) // 由長鏈接獲取短鏈接
const qrOption = {
 width: 200,
 margin: 1,
 quality: 0.3
}
this.getQrcodeImgURL(this.shortUrl, qrOption).then(url => {
 this.qrcodeImg = url
}).catch((err) => {
 console.log(`Create qrcode img failed, ${err}`)
})

public function shortUrl(Request $request)
 {
 $url = $request->input('long_url');
 if (!$url) {
 return response()->json([
 'code' => '-1',
 'message' => 'The long_url is required!'
 ]);
 }

 $key = Carbon::now()->timestamp; // 以當前時間戳作為緩存的key
 
 $expiresAt = Carbon::now()->addDays(10); // 短鏈接的有效時間為10天
 Cache::put($key, $url, $expiresAt);

 return response()->json([
 'code' => '0',
 'message' => 'Success short the url',
 'data' => $key
 ]);
 }
 
 public function redirect($shortCode)
 {
 $key = $shortCode;
 if (!$key) {
 return view("common.error", [
 "errorTitle" => "掃碼錯誤",
 "errorMessage" => "二維碼錯誤,請跟管理員確認!"]);
 }

 $redirectUrl = Cache::get($key, 'expiration');
 if ($redirectUrl == 'expiration') {
 return view("common.error", [
 "errorTitle" => "掃碼錯誤",
 "errorMessage" => "二維碼過期,請重新生成二維碼后再掃碼!"]);
 }

 // 記錄埋點數據
 ...
 
 return redirect()->away($redirectUrl);
 }