simple-promise-hash.js

function promiseHash (hash) {
  var promises = []
  Object.keys(hash).map(function (key, index) {
    return promises[index] = hash[key]
  })
  return Promise.all(promises).then(function (resolved) {
    var response = {}
    Object.keys(hash).map(function (key, index) {
      response[key] = resolved[index]
    })
    return response
  })
}