Example scraper in node (scraping rand paul's site for issues)

scrape.js

var cheerio = require('cheerio');
var request = require('request');
var fs = require('fs');

var s,
Scrape = {
  settings: {
    // Object, the json to be output
    json: {},
    // String, the url to scrape
    domain: 'https://randpaul.com/issues',
    // Int, an iterator for use later
    iterator: 0
  },
  init: function() {
    // Globalize settings
    s = this.settings;
    // Start scraper
    request( s.domain, this.scrapePage );
    // Wait 10 seconds to scrape and then output the JSON
    setTimeout( Scrape.outputJSON, 10000 );
  },
  scrapePage: function( error, resp, html ) {
    // Init cheerio
    var $ = cheerio.load( html );
    // Get each issue
    $( '.short-article a' ).each( function ( i, elem ) {
      // Up the json
      s.json[i] = { 'issue': '', 'text': '' };
      // Set the issue
      s.json[i]['issue'] = $( this ).text();
      // Get the text
      request( $( this ).attr( 'href' ), Scrape.getText );
    } );
  },
  getText: function( error, resp, html ) {
    // Init cheerio
    var $ = cheerio.load( html );
    // Set the text
    s.json[s.iterator]['text'] = $( '.article-text' ).text();
    // Increase the iterator
    s.iterator++;
  },
  outputJSON: function() {
    fs.writeFile( 'output.json', JSON.stringify( s.json, null, 4 ), function( error ) {
      console.log( 'File successfully written' );
    } );
  }
};

(function() {
  Scrape.init();
})();