I use this qr code scanner: https://github.com/mebjas/html5-qrcode
I use this code to scan qr code:
function onScanSuccess(decodedText, decodedResult) {
// handle the scanned code as you like, for example:
document.getElementById('text').value = decodedText;
console.log(`Code matched = ${decodedText}`, decodedResult);
}
function onScanFailure(error) {
// handle scan failure, usually better to ignore and keep scanning.
// for example:
console.warn(`Code scan error = ${error}`);
}
let html5QrcodeScanner = new Html5QrcodeScanner(
"reader", { fps: 10, qrbox: 250 }, /* verbose= */ false);
html5QrcodeScanner.render(onScanSuccess, onScanFailure);
It is possible to set default camera to back smartfone camera. I want to run scanner with setted back camera on startup. Thanks, for some help.
I accomplish it using this bit of code when I launch the scanner:
facingMode: { exact: "environment"}
Maybe this will help point you in the right direction. Below is the way the setting is used when I launch the scanner:
/** load scanner using back camera **/
html5QrCode.start({ facingMode: { exact: "environment"} }, config, qrCodeSuccessCallback);