get trending example

gif-by-id.js

exports = {
  'source:getTrending': {
    url: 'http://api.giphy.com/v1/gifs/feqkVgjJpYtjy?api_key=dc6zaTOxFJmzC'
  }
};

trending.js

const valuesIn = (ctx, done) => {
  done(null, _.valuesIn(ctx.value));
};

const pick = (keys) => (ctx, done) => {
  done(null, _.pick(ctx.value, keys));
};

exports = {
  'source:getTrending': {
    url: 'http://api.giphy.com/v1/gifs/trending?api_key=dc6zaTOxFJmzC'
  },
  'model:Trending': {
    before: 'source:getTrending',
    context: '$data', 
    map: 'model:Post'
  },
  'model:Post': {
    extend: {
      user: '$user | model:User',
      images: ['$images', pick(['original']), valuesIn, 'model:PostImages']
    },
    omit: ['username']
  },
  'model:User': {
    pick: ['username', 'display_name']
  },
  'model:PostImages': {
    pick: ['url', 'width', 'height']
  }
};