app.js

var express = require('express');
var google = require('google');

var app = express();

function googleSearch(opts, callback) {
	var search = config(opts);
	var results = [], pages = 0;

	search(opts.query, function (err, next, links) {
		if (err) {
			return callback(err);
		}

		links = links.map(function (link) {
			return {title: link.title, link: link.link, description: link.description};
		});

		results = results.concat(links);

		if (pages < opts.nextPages) {
			pages =+ 1;
			next();
		} else {
			callback(null, {query: opts.query, results: results});
		}
	});

	function config(opts) {
		google.resultsPerPage = opts.resultsPerPage || 25;
		google.tld = opts.tld;
		google.lang = opts.lang;

		return google;
	}
}

app.get('/search', function (req, res, next) {
	var query = req.query.query;
	var lang = req.query.lang || 'en';
	var tld = req.query.tld || 'de';

	if (!query) {
		return res.status(400).json({message: 'query is missing'});
	}

	var opts = {
		query: query,
		lang: lang,
		tld: tld,
		resultsPerPage: 25,
		nextPages: 1
	};

	googleSearch(opts, function (err, results) {
		if (err) {
			return next(err);
		}

		res.json(results);
	});
});

app.listen(3322, function () {
	console.log('search service started on 3322');
});

package.json

{
  "name": "yes",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "author": "",
  "license": "ISC",
  "dependencies": {
    "express": "^4.12.3",
    "google": "^0.6.0"
  }
}

I've modified https://gist.github.com/alexbeletsky/a3ce02a05790e24a3176#file-app-js-L25 for that.

Thanks a lot. All good now.