Authenticate a Steam trade URL and return the CS2 inventory

{
  "inventory": [
    {
      "id": "<string>",
      "asset_id": "<string>",
      "name": "<string>",
      "market_hash_name": "<string>",
      "icon_url": "<string>",
      "appid": 730,
      "tradable": true,
      "offer": {
        "accepted": true,
        "available": true,
        "price": "<string>",
        "price_minor": 2
      },
      "exterior": "<string>",
      "wear": "<string>"
    }
  ],
  "unavailable": [
    {
      "id": "<string>",
      "asset_id": "<string>",
      "name": "<string>",
      "market_hash_name": "<string>",
      "icon_url": "<string>",
      "appid": 730,
      "tradable": true,
      "offer": {
        "accepted": false,
        "available": false,
        "price": null
      },
      "exterior": "<string>",
      "wear": "<string>"
    }
  ],
  "unavailable_count": 1,
  "collateral": "<string>",
  "updated_at": "2023-11-07T05:31:56Z",
  "sessionToken": "<string>"
}

{
  "error": {
    "code": "<string>",
    "message": "<string>",
    "request_id": "<string>"
  }
}

{
  "error": {
    "code": "<string>",
    "message": "<string>",
    "request_id": "<string>"
  }
}

{
  "error": {
    "code": "<string>",
    "message": "<string>",
    "request_id": "<string>"
  }
}

{
  "error": {
    "code": "<string>",
    "message": "<string>",
    "request_id": "<string>"
  }
}

{
  "error": {
    "code": "<string>",
    "message": "<string>",
    "request_id": "<string>"
  }
}