import { RequestHandler } from 'express';
import { CsrfOptions } from '../core/options';
declare global {
    namespace Express {
        interface Request {
            csrfToken?: string;
        }
    }
}
/**
 * Creates an Express compatibility adapter for the CSRF core.
 * Provides middlewares to inject tokens, verify them, and rotate them on demand.
 *
 * @param options - Optional configuration extending defaults.
 * @returns Three RequestHandlers: csrfMiddleware, verifyCsrfToken, and regenerateCsrfToken.
 *
 * @example
 * ```typescript
 * import express from 'express';
 * import { expressCsrf } from 'sofi-csrf';
 *
 * const app = express();
 * const { csrfMiddleware, verifyCsrfToken } = expressCsrf();
 *
 * app.use(csrfMiddleware);
 * app.post('/data', verifyCsrfToken, (req, res) => res.send('OK'));
 * ```
 */
export declare function expressCsrf(options?: Partial<CsrfOptions>): {
    csrfMiddleware: RequestHandler<import("express-serve-static-core").ParamsDictionary, any, any, import("qs").ParsedQs, Record<string, any>>;
    verifyCsrfToken: RequestHandler<import("express-serve-static-core").ParamsDictionary, any, any, import("qs").ParsedQs, Record<string, any>>;
    regenerateCsrfToken: RequestHandler<import("express-serve-static-core").ParamsDictionary, any, any, import("qs").ParsedQs, Record<string, any>>;
};
//# sourceMappingURL=express.d.ts.map