curl --request POST \
  --url https://api.sortx.co.uk/entitlements/billing-portal \
  --header 'x-api-key: <api-key>'

const options = {method: 'POST', headers: {'x-api-key': '<api-key>'}};

fetch('https://api.sortx.co.uk/entitlements/billing-portal', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://api.sortx.co.uk/entitlements/billing-portal"

headers = {"x-api-key": "<api-key>"}

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

print(response.text)

{
  "url": "<string>"
}

{
  "_tag": "TenantCreateRejected",
  "reason": "<string>",
  "field": "<string>"
}

{
  "_tag": "Unauthenticated"
}

{
  "_tag": "TenantSuspended",
  "tenantId": "<string>",
  "reason": "<string>"
}

{
  "_tag": "EntitlementMissing",
  "tenantId": "<string>",
  "moduleId": "<string>"
}

{
  "_tag": "TenantNotFound",
  "slug": "<string>"
}

{
  "_tag": "WebhookDuplicate",
  "integration": "<string>",
  "externalId": "<string>"
}

{
  "_tag": "RateLimited",
  "key": "<string>",
  "retryAfterSeconds": 123,
  "message": "<string>"
}

{
  "_tag": "IntegrationUnavailable",
  "integration": "<string>",
  "detail": "<string>"
}