curl --request POST \
  --url https://{host}/api/v1/integration/callback-secret \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "organisation_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a"
}
'

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({organisation_id: '3c90c3cc-0d44-4b50-8888-8dd25736052a'})
};

fetch('https://{host}/api/v1/integration/callback-secret', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://{host}/api/v1/integration/callback-secret"

payload = { "organisation_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a" }
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

{
  "organisation_id": "<string>",
  "secret": "<string>"
}