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home-automation/frontend/src/api/csrf.ts
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/**
* Module-level CSRF token holder.
*
* The token is populated by SessionProvider after a successful GET /api/session.
* The fetch client middleware reads it on every non-GET/HEAD request.
*
* Per the project CSRF contract (m2-frontend-v2.md §3.2, orchestrator-decisions.md §3):
* - Server checks presence/non-empty only, does NOT validate the value.
* - Sending an empty-string or stale value will result in a 403; callers must
* ensure setCsrfToken() is called before issuing write requests.
*/
let _csrfToken = ''
/** Store the CSRF token returned by GET /api/session. */
export function setCsrfToken(token: string): void {
_csrfToken = token
}
/** Return the current CSRF token (may be empty string if not yet set). */
export function getCsrfToken(): string {
return _csrfToken
}