iPhone Stock Detector

iphone-stock.js

/**
 * I found the availability json by looking for XHR requests on this page:
 * https://www.apple.com/uk/shop/iphone/iphone-upgrade-program
 *
 * I'm not completely sure if it will help if you're not using the upgrade program, but it does
 * seem to have two flags for availability, 'unlocked' and 'contract'.
 */

import fetch from 'node-fetch';

const delay = ms => new Promise(resolve => setTimeout(resolve, ms))

const stores = {
  'R372': 'Leeds',
  'R239': 'Liverpool',
  'R215': 'Manchester',
  'R136': 'Manchester'
}

const phones = {
  'MLL93B/A': 'Blue 128GB',
  'MLLE3B/A': 'Blue 256GB',
  'MLL63B/A': 'Black 128GB',
  'MLLA3B/A': 'Black 256GB',
}

const interests = [
  { store: 'R372', phone: 'MLL93B/A' },
  { store: 'R372', phone: 'MLLE3B/A' },
  { store: 'R372', phone: 'MLL63B/A' },
  { store: 'R372', phone: 'MLLA3B/A' }, 

  { store: 'R239', phone: 'MLL93B/A' },
  { store: 'R239', phone: 'MLLE3B/A' },
  { store: 'R239', phone: 'MLL63B/A' },
  { store: 'R239', phone: 'MLLA3B/A' },  

  { store: 'R215', phone: 'MLL93B/A' },
  { store: 'R215', phone: 'MLLE3B/A' },
  { store: 'R215', phone: 'MLL63B/A' },
  { store: 'R215', phone: 'MLLA3B/A' }, 

  { store: 'R136', phone: 'MLL93B/A' },
  { store: 'R136', phone: 'MLLE3B/A' },
  { store: 'R136', phone: 'MLL63B/A' },
  { store: 'R136', phone: 'MLLA3B/A' },
];

const findiPhones = async function() {
  while (true) {
    const iphones = await fetch(`https://reserve-prime.apple.com/GB/en_GB/reserve/A/availability.json`).then(response => response.json())
    for (let i in interests) { 
      if (iphones.stores[interests[i].store][interests[i].phone].availability.contract || iphones.stores[interests[i].store][interests[i].phone].availability.unlocked) { 
        console.log(stores[interests[i].store] + ': ' + phones[interests[i].phone]);
      }
    }
	  
    await delay(1000);
  }
}

findiPhones();