curl --request GET \
  --url https://api.polymarket.us/v1/orders/open

{
  "orders": [
    {
      "id": "<string>",
      "market_slug": "<string>",
      "side": 1,
      "type": 1,
      "price": {
        "value": "0.55",
        "currency": "USD"
      },
      "quantity": 123,
      "cumQuantity": 123,
      "leavesQuantity": 123,
      "tif": 1,
      "goodTillTime": "2023-11-07T05:31:56Z",
      "intent": 1,
      "marketMetadata": {
        "slug": "<string>",
        "icon": "<string>",
        "title": "<string>",
        "outcome": "<string>",
        "eventSlug": "<string>"
      },
      "state": 123,
      "avgPx": {
        "value": "0.55",
        "currency": "USD"
      },
      "insertTime": "2023-11-07T05:31:56Z",
      "createTime": "2023-11-07T05:31:56Z"
    }
  ]
}