How to translate this Google Analytics code into Measurement Protocol?

Question

Google Analytics

I can’t figure out how to translate this code, which sends this data to Google Analytics, into the measurement format:

gtag("event", "purchase", {
  "transaction_id": "00001",
  "value": 5760.00,
   "items": [
    {
      "name": "...",
      "category": "...",
      "quantity": 1,
      "price": '5400.00'
    },
     {
      "id": "...",
      "name": "...",
      "brand": "...",
      "category": "...",
      "quantity": 2,
      "price": '180.00'
    }
  ]
  });

I just managed to do it myself:

https://www.google-analytics.com/collect?v=1&tid=G-XXXXXXXX&cid=xxxxx&t=purchase&ti=00001&ev=5760

but I don't know how to create the correct items array