Create an Option Value

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    option_value: {name: 'red', presentation: 'Red', public_metadata: {}, private_metadata: {}}
  })
};

fetch('http://{defaultHost}/api/v2/platform/option_values', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

{
  "data": {
    "id": "72",
    "type": "option_value",
    "attributes": {
      "position": 1,
      "name": "Size-72",
      "presentation": "S",
      "created_at": "2022-11-08T19:34:34.345Z",
      "updated_at": "2022-11-08T19:34:34.345Z",
      "public_metadata": {},
      "private_metadata": {}
    },
    "relationships": {
      "option_type": {
        "data": null
      }
    }
  }
}