Example Node (4) script that pulls posts from the front page of Hacker News

hn_frontpage_scrape.js

/**
 * Copyright (C) 2016 Michael Lyons
 *
 * This software may be modified and distributed under the terms
 * of the MIT license.
 */

var _ = require( 'underscore' ),
    q = require( 'q' ),
    request = require( 'request' ),
    cheerio = require( 'cheerio' );


var get = function( url ) {
    return q
        .Promise( ( resolve, reject ) => {
            request( {
                url: url,
                method: 'get'
            }, ( err, res, body ) => {
                if( err ) return reject( err );
                resolve( body );
            } );
        } );
};

q
    .async( function *() {
        var page_html = yield get( 'http://news.ycombinator.com' );
        var $ = cheerio.load( page_html );

        var results = $( '.athing' )
            .find( '.title>a' );

        return _
            .map( results, ( elm ) => {
                return {
                    text: $( elm ).text(),
                    href: $( elm ).attr( 'href' )
                };
            } )
    } )()
    .then( ( results ) => {
        console.log( results );
        process.exit( 0 );
    } )
    .catch( ( err ) => {
        console.error( err );
        process.exit( 2 );
    } );