state.js

const state = {
  timelines: {
    home: {
      tweets: [
        '123',
        '456',
        '789',
        '012'
      ]
    }
  },
  tweets: {
    '123': { id: '123', text: 'my tweet', user: '345', in_reply_to_tweet: '456' },
    '456': { id: '456', text: 'my tweet', user: '345' },
    '789': { id: '789', text: 'my tweet', user: '901' },
    '012': { id: '012', text: 'my tweet', user: '234' }
  },
  users: {
    '345': { id: '123', name: 'Jimmy' },
    '901': { id: '456', name: 'Jane' },
    '234': { id: '789', name: 'Julie' }
  }
};