trello-giphy-covers.js

var events = require('events');
var request = require('request');
var Trello = require('node-trello');

// Fill these in
var trelloKey = //AppKEY;
var trelloToken = //UserToken;
var idBoard = //BoardId;

var trello = new Trello(trelloKey, trelloToken);

function boardActionEmitter(idBoard) {

  var emitter = new events.EventEmitter(idBoard);
  var date = new Date().toString();
  var params = {
    since: date
  };

  setInterval(
    function(){
      trello.get('/1/boards/'+ idBoard + '/actions', params, function(err, actions) {
        if (err) console.error(err);
        if (actions) params.since = new Date().toString();
        actions.forEach(function(action) {
           emitter.emit(action["type"], action);
        });
      })
  }, 5000);
  return emitter;
}

var emitter = boardActionEmitter(idBoard);

emitter.on('createCard', function(action) {
  var idCard = action.data.card.id;
  var name = action.data.card.name;
  request(
    {
      url: "http://api.giphy.com/v1/gifs/search",
      qs: {
        q: name,
        limit: 1,
        api_key: //giphyKey
      }
    },
    function(err, response, bodyJSON) {
      if (err) {
        console.error(err);
        return;
      }
      var body = JSON.parse(bodyJSON);
      var url = body.data[0].images.downsized.url;
      trello.post(
        "/1/cards/" + idCard + "/attachments",
        { url: url },
        function(err) { if (err) console.error(err); }
      );
  });
});