Fetch Evernote notes from a notebook using javascript

app.js

var async = require('async');	//async library to allow macro-wokr over async methods
var Evernote = require('evernote').Evernote;	//the evernote client
var _ = require('lodash');	//handy utility function

/**
 * @param token the authorisation token returned from your Evernote authentication
 * @param bookGuid the unique identifier of the notebook
 */
function getNotesFromEvernote(token, bookGuid) {
  //an evernote client object
  var client = new Evernote.Client({
    token: token,
    sandbox: true
  });

  //curried async function to fetch a given note. notestore is Evernote.Client.getNoteStore()
  //https://dev.evernote.com/doc/reference/NoteStore.html#Fn_NoteStore_getNote
  function getNote(notestore) {
    return function(guid, cb) {
      notestore.getNote(guid, true, false, false, false, function (err, note) {
        if (err) cb(err, null);
        else cb(null, _.omit(note, 'contentHash'));	//remove contentHash element as it's big and not needed
      });
    };
  }
  //we search for notes via a NoteFilter, specifying simply the guid of the notebook we want to
  //look at
  var filter = new Evernote.NoteFilter();
  filter.notebookGuid = bookGuid;
  //the resultspec is used to specify what Evernote should return - we leave this empty so we get
  //everything possible back in a single call
  var spec = new Evernote.NotesMetadataResultSpec();

  var store = client.getNoteStore();
  //first, find note metadata using the search criteria above
  store.findNotesMetadata(filter, 0, 1000, spec, function(err, notes) {
      if(err) console.log(err);
      else {
        //second actually GET the notes by applying the getNotes returned function to each note guid
        async.map(_.pluck(notes.notes, 'guid'), getNote(store), function(err, results) {
          if(err) console.log(err);
          else {
            //DO SOMETHING WITH 'results' HERE
          }
        });
      }
    }
  );
}