curl --request GET \
  --url http://localhost:3001/v1/purchase-order/{id} \
  --header 'Authorization: Bearer <token>'

{
  "id": "<string>",
  "createdAt": "2023-11-07T05:31:56Z",
  "updatedAt": "2023-11-07T05:31:56Z",
  "purchaseOrderNumber": "<string>",
  "externalId": "<string>",
  "orderDate": "2023-11-07T05:31:56Z",
  "deliveryDate": "2023-11-07T05:31:56Z",
  "supplierId": "<string>",
  "lineItems": [
    {
      "id": "<string>",
      "createdAt": "2023-11-07T05:31:56Z",
      "updatedAt": "2023-11-07T05:31:56Z",
      "productCode": 123,
      "title": "<string>",
      "description": "<string>",
      "quantity": 123,
      "unit": 123,
      "unitPrice": 123,
      "totalPrice": 123,
      "discount": 123,
      "taxRate": 123,
      "taxAmount": 123
    }
  ]
}