import { RequestHandler } from 'express';
export type HttpMethod = 'GET' | 'POST' | 'PATCH' | 'PUT' | 'DELETE' | 'OPTIONS';
export interface ICorsMiddlewareOptions {
    allowedHeaders?: string[];
    allowedMethods?: HttpMethod[];
    allowedOrigins?: string[];
    credentials?: boolean;
    preflightContinue?: boolean;
}
/**
 * Returns an Express compatible middleware that provides cross-origin-resource-
 * sharing capabilities.
 */
export declare const corsMiddleware: ({ allowedHeaders, allowedMethods, allowedOrigins, credentials, preflightContinue, }?: ICorsMiddlewareOptions) => RequestHandler;