sample.js

// Contoh object promise untuk scrapping sebuah website
recentMovie: async function(page){
	return new Promise((res, err) => {
            var url = '/'
            if (page) {
              url = '/page/' + page
            }

	    scraper.scrape(url, function(err, $) {
		if (err) {
		  console.log(err);
		  return;
		}

		var data = []

		$('div.moviefilm').each(function(i, el) {
		  var title = $(el).find('img').attr('alt')
		  var img = $(el).find('img').attr('src')
		  var rate = $(el).find('div.imdb > p').text().split(" ")
		  var url = $(el).find('a').eq(1).attr('href')
                  url = url.replace("https://sitess.com/nonton/", "");
                  url = url.replace("-movietube", "")
		  data[i] = {
		    title: title,
		    picture: img,
		    rate:rate[2],
		    url:url
		  }
		});

                var page = []

                String.prototype.isNumber = function(){return /^\d+$/.test(this);}

                $('div.wp-pagenavi > a').each((i, el) => {
                  var text = $(el).text()
                  if (text.isNumber()) {
                    var text = {
                      text: $(el).text(),
                      link: $(el).attr('href')
                    }
                    page.push(text)
                  }
                })

		var isSucces = data.length != 0

		var result = {
		  isSucces:isSucces,
		  data: data,
                  page: page
		}

		res(result)
	      })
	  })
  }
}

// Contoh eksekusi dari object promise dengan async await.
home: async(ctx, next) => {
  var page = ctx.query.page;
  var data = await movie.recentMovie(page)
  await ctx.render('index', {
	data
  })
}