export interface BffUser {
    isAuthenticated: boolean;
    claims?: Record<string, string>;
    sessionExpiresAt?: string;
}
export interface BffClientOptions {
    /** Must match the server's basePath. Default `/bff`. */
    basePath?: string;
    /** Must match the server's antiForgeryHeader. Default `X-Authagonal-Bff`. */
    antiForgeryHeader?: string;
}
export interface BffClient {
    /** fetch() that adds the anti-forgery header. Use for `/bff/user` and `/bff/api/*`. */
    fetch(input: string, init?: RequestInit): Promise<Response>;
    /** GET `/bff/user`. */
    getUser(): Promise<BffUser>;
    /** Navigate the browser to login (defaults returnUrl to the current path). */
    login(returnUrl?: string): void;
    /** Navigate the browser to logout. */
    logout(): void;
    /** Proxy a call through the BFF: `apiFetch('/orders/1')` → `GET {basePath}/api/orders/1` with the token. */
    apiFetch(path: string, init?: RequestInit): Promise<Response>;
}
export declare function createBffClient(options?: BffClientOptions): BffClient;