blocking user agents mixpanel

user-agent-block.js

const express = require('express');
const app = express();
const Mixpanel = require('mixpanel')
const mixpanel = mixpanel.init('your token')


var BLOCKED_UA_STRS = [
    'googlebot',
    'googleweblight',
    'mediapartners-google',
    'storebot-google' //etc... list can be expanded as necessary.
];

app.use((req, res, next) => {
    const userAgent = req.headers['user-agent'].toLowerCase();

    for (let blockedUA of BLOCKED_UA_STRS) {
        if (!userAgent.includes(blockedUA)) {
            //user is not a bot
            mixpanel.track('foo')
        }
    }

    next();
});


const PORT = 3000;
app.listen(PORT, () => {
    console.log(`Server running on port ${PORT}`);
});