How to use user:pass HTTP proxies javascript with requests module

Question

I am trying to do

var HttpsProxyAgent = require('https-proxy-agent');
var thing = new HttpsProxyAgent('http://user:pass:ip:port');
const opts = {
    method: "GET",
    jar: this.cookieJar,
    gzip: true,
    agent: thing
}
console.log('trying');
request('https://ipinfo.io', opts, (err, res, body) => {}

But it gives me no error, It doesn't even print "trying" that is after const opts. How do I fix this?