Download zipped repository from github. If repo is private, you have to use token (create in user profile).

download-github-repo.js

const request = require('request');
const fs = require('fs');

const repo = 'miwaniec/socket-camera';
const accessToken = ''; /* for private repo, use token - https://github.com/settings/tokens */

var options = {
    method: 'GET',
    url: 'https://api.github.com/repos/' + repo + '/zipball/',
    encoding: 'binary',
    headers: {
        'Authorization': (accessToken != '' ? 'token ' + accessToken : '' ),
        'User-Agent': 'miwaniec-app'
    }
};

request(options, function(error, response, body) {
    if (error || response.statusCode !== 200) {
        console.log('Failed to get repo ', response.statusCode);
    } else {
        console.log('We got the repo!');
        fs.writeFile('repo.zip', body, 'binary', function (err) {});
    }
});