curl --request POST \
  --url https://api.maalbar.dk/v1/screenings/{screeningPublicId}/tags \
  --header 'Content-Type: application/json' \
  --header 'X-Api-Key: <api-key>' \
  --data '
[
  {
    "publicId": "screeningTag_xxxxxxxxxxxx"
  }
]
'

const url = 'https://api.maalbar.dk/v1/screenings/{screeningPublicId}/tags';
const options = {
  method: 'POST',
  headers: {'X-Api-Key': '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify([{publicId: 'screeningTag_xxxxxxxxxxxx'}])
};

fetch(url, options)
  .then(res => res.json())
  .then(json => console.log(json))
  .catch(err => console.error(err));

{
  "error": "Invalid request parameters"
}

{
  "error": "Authentication required"
}

{
  "error": "Resource not found"
}

{
  "error": "An unexpected error occurred"
}