/// <reference types="node" />
import { NextMiddleware, Middleware } from "./core";
import { Context } from "./context";
import { Router } from "./router";
import * as net from "net";
import * as http from "http";
/**
 * The default error handler. It's executed at the end of
 * the middleware chain or whenever, an exception that's
 * not caught by the application is encountered.
 *
 * @export
 * @param {Error} err
 */
export declare function defaultErrorHandler(err: Error, req: http.IncomingMessage, res: http.ServerResponse): void;
/**
 * A default fall-back handler that simply ends the request, and returns.
 *
 * @export
 * @param {IContext} context
 * @param {MiddlewareWithContext} next
 * @returns {Promise} Resolved Promise
 */
export declare function defaultFallbackOkHandler(context: Context, next: NextMiddleware): Promise<void>;
/**
 * The default fall-back handler that ends the request with 404 status code.
 *
 * @export
 * @param {IContext} context
 * @param {MiddlewareWithContext} next
 * @returns {Promise} Resolved Promise
 */
export declare function defaultFallbackNotFoundHandler(context: Context, next: NextMiddleware): Promise<void>;
export declare function defaultClientSocketErrorHandler(err: any, socket: net.Socket): void;
/**
 * Composes multiple middlewares into one middleware that executes the middleware chain.
 *
 * @export
 * @template T {IContext}
 * @param {...Middleware<T>[]} middlewares
 * @returns {Middleware<T>}
 */
export declare function compose(...middlewares: Middleware<any>[]): Middleware<any>;
export declare function dispatch(context: Context, next: NextMiddleware, middlewares: Middleware<any>[]): Promise<void>;
/**
 * Stringify JSON, like JSON.stringify, but v8 optimized.
 */
export declare function stringify(value: any, replacer: (key: string, value: any) => any, spaces: string | number): string;
export declare function addMiddlewares(middlewares: (Middleware<any> | Router<any>)[], destination: Middleware<any>[]): void;