const options = {method: 'DELETE', headers: {Authorization: 'Bearer <token>'}};

fetch('https://api.thanks.io/api/v2/mailing-lists/{mailingListId}', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

curl --request DELETE \
  --url https://api.thanks.io/api/v2/mailing-lists/{mailingListId} \
  --header 'Authorization: Bearer <token>'

import requests

url = "https://api.thanks.io/api/v2/mailing-lists/{mailingListId}"

headers = {"Authorization": "Bearer <token>"}

response = requests.delete(url, headers=headers)

print(response.text)

{
  "message": "success"
}

{
  "message": "Unauthorized"
}

{
  "message": "Not Found"
}