const response = await fetch('https://api.platform.softwareone.com/public/v1/products/{productId}/item-groups', {
    method: 'GET',
    headers: {},
});
const data = await response.json();

{
  "data": [
    {
      "id": "text",
      "href": "text",
      "name": "text",
      "label": "text",
      "description": "text",
      "displayOrder": 0,
      "isDefault": false,
      "isMultipleChoice": false,
      "isRequired": false,
      "itemCount": 0
    }
  ]
}

const response = await fetch('https://api.platform.softwareone.com/public/v1/products/{productId}/item-groups/{id}', {
    method: 'GET',
    headers: {},
});
const data = await response.json();

{
  "id": "text",
  "href": "text",
  "name": "text",
  "label": "text",
  "description": "text",
  "displayOrder": 0,
  "isDefault": false,
  "isMultipleChoice": false,
  "isRequired": false,
  "itemCount": 0
}

const response = await fetch('https://api.platform.softwareone.com/public/v1/products/{productId}/item-groups', {
    method: 'POST',
    headers: {
      "Content-Type": "application/json"
    },
    body: JSON.stringify({}),
});
const data = await response.json();

{
  "id": "text",
  "href": "text",
  "name": "text",
  "label": "text",
  "description": "text",
  "displayOrder": 0,
  "isDefault": false,
  "isMultipleChoice": false,
  "isRequired": false,
  "itemCount": 0
}

const response = await fetch('https://api.platform.softwareone.com/public/v1/products/{productId}/item-groups/{id}', {
    method: 'DELETE',
    headers: {},
});
const data = await response.json();

{
  "type": "text",
  "title": "text",
  "status": 0,
  "detail": "text",
  "instance": "text"
}

const response = await fetch('https://api.platform.softwareone.com/public/v1/products/{productId}/item-groups/{id}', {
    method: 'PUT',
    headers: {
      "Content-Type": "application/json"
    },
    body: JSON.stringify({}),
});
const data = await response.json();

{
  "id": "text",
  "href": "text",
  "name": "text",
  "label": "text",
  "description": "text",
  "displayOrder": 0,
  "isDefault": false,
  "isMultipleChoice": false,
  "isRequired": false,
  "itemCount": 0
}