Giphy's trending example

main.js

exports = {
  'source:getTrending': {
    url: 'http://api.giphy.com/v1/gifs/trending?api_key=dc6zaTOxFJmzC'
  },
  // get all images
  'model:getAllImages': {
    // will execute source:getTrending and pass it as the context
    before: 'source:getTrending',
    // because the service returns everything 
    // under 'data' property, this will access that path
    context: '$data'
  }, 
};