curl --request POST \
  --url https://virtserver.swaggerhub.com/BangoProducts/MerchantInterface_Client_API/1.1.0/v1/entitlement/terminate/{merchantEntitlementId} \
  --header 'Authorization: Basic <encoded-value>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "immediate": true
}
'

const options = {
  method: 'POST',
  headers: {Authorization: 'Basic <encoded-value>', 'Content-Type': 'application/json'},
  body: JSON.stringify({immediate: true})
};

fetch('https://virtserver.swaggerhub.com/BangoProducts/MerchantInterface_Client_API/1.1.0/v1/entitlement/terminate/{merchantEntitlementId}', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://virtserver.swaggerhub.com/BangoProducts/MerchantInterface_Client_API/1.1.0/v1/entitlement/terminate/{merchantEntitlementId}"

payload = { "immediate": True }
headers = {
    "Authorization": "Basic <encoded-value>",
    "Content-Type": "application/json"
}

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

print(response.text)

{
  "responseCode": "OK",
  "responseMessage": "Success",
  "terminationDate": "2023-11-07T05:31:56Z"
}

{
  "responseCode": "ACCEPTED",
  "responseMessage": "Request accepted"
}

{
  "responseCode": "BAD_REQUEST",
  "responseMessage": "Invalid request."
}

{
  "responseCode": "UNAUTHORIZED",
  "responseMessage": "Invalid access credentials."
}

{
  "responseCode": "NOT_FOUND",
  "responseMessage": "Entitlement not found."
}

{
  "responseCode": "CONFLICT",
  "responseMessage": "The requested action has been rejected due to a conflict."
}

{
  "responseCode": "TOO_MANY_REQUESTS",
  "responseMessage": "Request limit reached. Please try again later."
}

{
  "responseCode": "INTERNAL_ERROR",
  "responseMessage": "The server encountered an unexpected condition which prevented it from fulfilling the request."
}

{
  "responseCode": "SERVICE_UNAVAILABLE",
  "responseMessage": "The server is undergoing maintenance and is not available. Please, try again later."
}