Actions.js

/* @flow weak */
var AppDispatcher = require('./Dispatcher');
var Constants = require('./Constants');
var find = require('../utils/find');
var __APP_SERVER__ = 'http://localhost:3500';

var Cache = {};

var Actions = {

  getPersona(id: String, fields: Array): Promise {
    if (!Cache.personas) {
      Cache.personas = [];
      console.log('fetching %s', id);
      return fetch(`${__APP_SERVER__}/api/${id}`)
        .then(n => n.json())
        .then(newPersona => {
          console.log('return new Persona', newPersona);
          Cache.personas = Cache.personas.concat(newPersona);

          return newPersona;
        });
    }
    var target = find(Cache.personas, p => p.id === id);
    return new Promise((resolve, reject) => resolve(target));
  },

  getPersonas(count: Number): Promise {
    if (!Cache.personas) Cache.personas = [];
    if (Cache.personas.length === 0) {
      return fetch(`${__APP_SERVER__}/api/`)
        .then(n => n.json())
        .then(newPersonas => {
          Cache.personas = Cache.personas.concat(newPersonas);
          Cache.personas.sort((a, b) => {
            if (a.id < b.id) return -1;
            if (a.id > b.id) return 1;
            return 0;
          });

          AppDispatcher.dispatch({
            actionType: Constants.UPDATE_PERSONAS,
            data: Cache.personas,
          });

          return Cache.personas;
        });
    }
  },

};

module.exports = Actions;