tencent cloud

// Taking the `express` backend as an example,
// Signature algorithm: sha256(timestamp+token+appid+timestamp)

const { createHash } = require('crypto');
const config = {
    appid: 'Your Tencent Cloud `APPID`',
    token: 'Your token',
}
const sha256 = function(str) {
    return createHash('sha256')
        .update(str)
        .digest('hex');
}

const genSignature = function() {
    const timestamp = Math.round(new Date().getTime() / 1000);
    const signature = sha256(timestamp + config.token + config.appid + timestamp).toUpperCase(); // Use the token and APP ID obtained above to generate an encrypted string and return it
    return { signature, timestamp };
}

app.get("/get-ar-sign", (req, res) => {
    const sign = genSignature();
    res.setHeader('Access-Control-Allow-Origin','*');
    res.setHeader('Access-Control-Allow-Methods', 'GET, OPTIONS');
    res.send(sign);
})

npm install tencentcloud-webar

<script charset="utf-8" src="https://webar-static.tencent-cloud.com/ar-sdk/resources/latest/webar-sdk.umd.js"></script>