Multi format store

Store.js

var lodash = require('lodash'),
    superagent = require('superagent'),
    Promise = require('es6-promise').Promise

Store.prototype.get = function(url) {
  if (lodash.isArray(url)) {
    return Promise.all(lodash.map(url, this.get))
  } else if (lodash.isObject(url)) {
    return Promise.all(lodash.map(url, function(url, key) {
      return this.get(url).then(function(value) {
        return [key, value]
      })
    }, this)).then(lodash.zipObject)
  } else {
    return new Promise(function(resolve, reject) {
      superagent('GET', url)
        .set('Accept', 'application/json')
        .end(function(err, res) {
          if (err) return reject(err)
          if (res.error) return reject(res.error.message)

          resolve(res.body)
        })
    })
  }
}

// Example:
var store = new Store()

store.get('http://google.com').then(function(content) {
  console.log(content) // => a
})

store.get(['http://a.com', 'http://b.com']).then(function(content) {
  console.log(content) // => [a, b]
})

store.get({products: 'http://a.com', navigation: 'http://b.com'}).then(function(content) {
  console.log(content) // => {products: a, navigation: b}
})