I am trying to get the dropdown fields within a sharepoint list via the \_api. See Image below: 

[![enter image description here](https://i.stack.imgur.com/fjhbx.png)](https://i.stack.imgur.com/fjhbx.png)

```
https://one365dev1.sharepoint.com/sites/nieuwsportaal/_api/web/lists/getByTitle('Nieuwsberichten')/items?$select=Hoofdcategorie&$expand=FieldValuesAsText

```

I used the api endpoint above but then I realized that I am getting the items and thus not all values of "Hoofdcategorie". I am clueless however if there is any other way to get the items of the dropdown list of a field?

any help is much appreciated.
Cheers.