/// <reference types="koa__cors" />
import cors from '@koa/cors';
import { Application, CorsConfig, HttpContext, Middleware, NextHandler } from '@supercharge/contracts';
export declare class HandleCorsMiddleware implements Middleware {
    /**
     * Stores the app instance.
     */
    protected readonly app: Application;
    /**
     * The CORS handler for incoming requests.
     */
    private readonly handleCors;
    /**
     * Create a new middleware instance.
     */
    constructor(app: Application);
    /**
     * Returns the options determining how to serve assets.
     *
     * @returns {CorsConfig}
     */
    protected createConfig(): cors.Options;
    /**
     * Returns the CORS config object.
     *
     * @returns {CorsConfig}
     */
    config(): CorsConfig;
    /**
     * Handle the incoming request.
     *
     * @param ctx HttpContext
     * @param next NextHandler
     */
    handle(ctx: HttpContext, next: NextHandler): Promise<void>;
}