Search for a tech on gitHub and save it somewhere

techWorthy.js

var http = require('https');
var MongoClient = require('mongodb');
var url = require('url');

function get(path,cb){
    var config = url.parse(path);
    config.headers = {'user-agent': 'drFabio'};
    http.get(config , function(response) {
        var body = '';
        response.on('data', function(d) {
            body += d;
        });
        response.on('end', function() {
            var parsed = JSON.parse(body);
            cb(null,parsed);
        });
    });
}

function queryGithub(tech,cb){
    var url = 'https://api.github.com/search/repositories?q='+tech+'&sort=stars&order=desc&per_page=3'
    get(url,function(err, response){
        if(err){
            return(cb(err));
        }
        var resp = getGitHubRepresentatives(tech,response);
        cb(null, resp);
    });
}
function getGitHubRepresentatives(tech,response){
    var techName = tech.toLowerCase();
    var total = response.total_count;
    var size = response.items.length;
    var totalStars = 0;
    var repoData = [];
    var item;
    for(var i=0; i< size; i++){
        item = response.items[i];
        console.log("ITEM");
        console.log(item);

        var hasTech = item.description.toLowerCase().indexOf(techName)>-1 
         || item.name.toLowerCase().indexOf(techName) > -1;
        if(!hasTech){
            continue;
        }
        repoData.push({
            name: item.name,
            full_name: item.full_name,
            html_url: item.html_url,
            description: item.description,
            homepage: item.homepage,
            stargazers_count: item.stargazers_count,
            watchers_count: item.watchers_count
        });
        totalStars+= item.stargazers_count;

    }
    if(repoData.length ==0){
        return null;
    }
    return {total:response.total_count , repos: repoData, totalStars:totalStars};
}
function saveTech(db,data,cb){
    db
    .collection('techs')
    .insertOne( data, function(err, result) {
        if(err){
            return cb(err);
        }
        return cb(null,'Success.')
    });
}

module.exports = function (ctx, done) {
    MongoClient.connect(ctx.data.MONGO_URL,  function (err, db) {
        if(err){
            return done(err);
        }
        queryGithub(ctx.data.tech,function(err,data){
            if(err){
                return done(err);
            }
            if(data == null){
                return done(null,'Success.');
            }
            saveTech(db,data,done);
        })
        
    });
}