gist.es6

// user_id=27830729
// order=hints
// count=3
// fields=photo_100
// name_case=nom
const resFriends = {
  response: {
    count: 238,
    items: [{
      id: 53472976,
      first_name: 'Bilo',
      last_name: 'Chorna',
      photo_100: 'https://pp.vk.me/...224/3ZEVBx_G_js.jpg',
      online: 0
    }, {
      id: 55654958,
      first_name: 'Дария',
      last_name: 'Сова',
      photo_100: 'https://pp.vk.me/...c0d/exUuveeC8m4.jpg',
      online: 0
    }, {
      id: 56781941,
      first_name: 'Павло',
      last_name: 'Бортник',
      photo_100: 'https://pp.vk.me/...603/iaOCVuDlTuY.jpg',
      online: 0
    }]
  }
}

// users.get
// id=27830729
// fields=photo_50,photo_200,can_see_audio,counters
// name_case=Nom
const resProfile = {
  response: [{
    id: 27830729,
    first_name: 'Тарас',
    last_name: 'Перун',
    photo_50: 'https://pp.vk.me/...053/bjKw2NB6doI.jpg',
    photo_200: 'https://pp.vk.me/...051/zKAc4kz2A7c.jpg',
    can_see_audio: 1,
    counters: {
      albums: 1,
      videos: 566,
      audios: 2349,
      notes: 0,
      photos: 55,
      gifts: 19,
      friends: 238,
      online_friends: 57,
      mutual_friends: 18,
      user_videos: 23,
      followers: 222,
      subscriptions: 0,
      pages: 56
    }
  }]
}

//owner_id=27830729
// need_user=0
// count=3

const resAudio= {
  response: {
    count: 2349,
    items: [{
      id: 411573648,
      owner_id: 27830729,
      artist: 'NRM',
      title: 'Три черепахи',
      duration: 205,
      date: 1446287026,
      url: 'https://cs7-2v4.v...C89RGMv9kGJWaMxbbYs',
      lyrics_id: 8510555,
      genre_id: 18
    }, {
      id: 411570709,
      owner_id: 27830729,
      artist: 'Даха Браха',
      title: 'Specially for you',
      duration: 377,
      date: 1446286338,
      url: 'https://cs7-1v4.v...fwdPKMkKoPq8zqTxPkU',
      lyrics_id: 4622993,
      genre_id: 1
    }, {
      id: 404739833,
      owner_id: 27830729,
      artist: 'широкий лан',
      title: 'Без названия',
      duration: 214,
      date: 1444149334,
      url: 'https://psv4.vk.m...0hEC6vchWYuUy5uVUSE',
      genre_id: 18
    }]
  }
}


function normalize(response) {

  const result = Object.assign({}, response, {
    ids: [],
    items: {}
  })

  response.items.map(item => {
    result.ids.push(item.id)
    result.items[[item.id]] = item
  })

  return result
}

const normalized = normalize(resAudio.response)
console.log(normalized)

const result = { count: 2349,
  items: 
   { '404739833': 
      { id: 404739833,
        owner_id: 27830729,
        artist: 'широкий лан',
        title: 'Без названия',
        duration: 214,
        date: 1444149334,
        url: 'https://psv4.vk.m...0hEC6vchWYuUy5uVUSE',
        genre_id: 18 },
     '411570709': 
      { id: 411570709,
        owner_id: 27830729,
        artist: 'Даха Браха',
        title: 'Specially for you',
        duration: 377,
        date: 1446286338,
        url: 'https://cs7-1v4.v...fwdPKMkKoPq8zqTxPkU',
        lyrics_id: 4622993,
        genre_id: 1 },
     '411573648': 
      { id: 411573648,
        owner_id: 27830729,
        artist: 'NRM',
        title: 'Три черепахи',
        duration: 205,
        date: 1446287026,
        url: 'https://cs7-2v4.v...C89RGMv9kGJWaMxbbYs',
        lyrics_id: 8510555,
        genre_id: 18 } },
  ids: [ 411573648, 411570709, 404739833 ] }

const auth = {
  isLoginedIn: false
}

const viewer = {
  id: '',
  avatarUrl: ''
}

const users = {
  users: {},
  fetchingUsers: false
}

const songs = {
  songs: {

  },
  fetchingSongs: false
}