Identity

import { configureInstallationIdentity, getOrCreateInstallationId } from "@fast-china/utils";

configureInstallationIdentity({ cacheKey: "account:installation-id" });

const installationId = getOrCreateInstallationId();

Call configureInstallationIdentity in the application entry before first use. The default business key is identity:installation-id; repeated identical configuration is idempotent and conflicting configuration throws. Installation Identity UUID generation prefers Web Crypto and falls back to Math.random() when unavailable.