rank.js

const googleTrends = require('google-trends-api');
const HttpsProxyAgent = require('https-proxy-agent');
const https = require('https');


module.exports = function (keywords, success, error) {

    https.get('https://api.getproxylist.com/proxy', (resp) => {
        let data = '';

        // A chunk of data has been recieved.
        resp.on('data', (chunk) => {
            data += chunk;
        });

        // The whole response has been received. Print out the result.
        resp.on('end', () => {

            //  console.log(data);
            let proxy = JSON.parse(data);

            let url = `http${proxy.allowsHttps ? "s" : ""}://` + proxy.ip + ":" + proxy.port;
            //  console.log(url);
            //let proxyAgent = new HttpsProxyAgent(url);

            var startDate = new Date();
            startDate.setMonth(startDate.getMonth() - 1);


            let i, j, chunky = [], chunk = 5;
            for (i = 0, j = keywords.length; i < j; i += chunk) {
                chunky = keywords.slice(i, i + chunk);

                let query = {
                    keyword: chunky,
                    //    agent: proxyAgent
                    hl: "de",
                    startTime: startDate
                };

                googleTrends.interestOverTime(query).then(function (chunky) { return (res) => success(res, chunky)}(chunky)).catch(error);
            }

        });

    }).on("error", (err) => {
        console.log("Error: " + err.message);
    });

}