High Availability

CloudClient toggles cloud-managed high availability for a context’s Trusted Execution Environment — redundancy managed by Calimero Cloud. Unlike the rest of the SDK, it’s a redirect helper: its methods open a browser window to the cloud flow rather than making a fetch call, and it is standalone (not part of MeroJs).

Enable / disable

import { CloudClient } from '@calimero-network/mero-js';

const cloud = new CloudClient(); // defaults to https://cloud.calimero.network

cloud.enableHA({
  groupId: 'group-id',
  contextId: 'ctx-id',
  redirectUrl: window.location.href, // where the cloud sends the user back
});

cloud.disableHA({ groupId: 'group-id', contextId: 'ctx-id' });

Each call opens the cloud endpoint (/enable-ha or /disable-ha) with the group_id, context_id, and redirect_url as query parameters, then returns void.

Point it at a different cloud deployment:

const cloud = new CloudClient({ cloudBaseUrl: 'https://cloud.example.com' });

Caution

enableHA/disableHA rely on window.open, so they only work in a browser environment. They complete out-of-band via the redirect — there’s no promise to await and no return payload.

For what the TEE admission policy governs and how nodes attest, see groups & governance → TEE admission policy.