in backend/server.js [68:99]
      count: Number(items[index + 1]),
      name: CATALOG[item].name
    })
    return acc
  }, [])
  let latest = await client.lrange('orders:items:latest', 0, 4)
  let latestSales = latest.reduce((acc, item) => {
    acc.push(CATALOG[item].name)
    return acc
  }, [])
  return {
    orderCount: Number(orderCount),
    popularItems: popularItems,
    uniqueItemCount: Number(uniqueItemCount),
    latestSales: latestSales
  }
}
/**
 * [description]
 * @return {[type]} [description]
 */
const loadSalesData = async () => {
  let dates = await client.zrevrange('sales:revenue:days', 0, 6)
  let result = {}
  for (let date of dates) {
    let sales = await client.hgetall(`sales:revenue:${date}`)
    result[date] = {