curl --fail-with-body -sS 'https://webhooks-testnet.lumeus.dev/readyz'

// Node 18+ (ES module)
const res = await fetch('https://webhooks-testnet.lumeus.dev/readyz', {
  method: 'GET',
});
console.log(res.status, JSON.stringify(await res.json(), null, 2));

import json

import requests

res = requests.get(
    "https://webhooks-testnet.lumeus.dev/readyz",
    timeout=30,
)
print(res.status_code, json.dumps(res.json(), indent=2))

{
  "ready": true
}

{
  "ready": false
}