DefinitelyTyped/types/webpack-hot-middleware/index.d.ts

// Type definitions for webpack-hot-middleware 2.16
// Project: https://github.com/webpack-contrib/webpack-hot-middleware
// Definitions by: Benjamin Lim <https://github.com/bumbleblym>
//                 Ron Martinez <https://github.com/icylace>
//                 Chris Abrams <https://github.com/chrisabrams>
// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
// TypeScript Version: 2.3

import { NextHandleFunction } from 'connect';
import * as webpack from 'webpack';

export = WebpackHotMiddleware;

declare function WebpackHotMiddleware(
	compiler: webpack.ICompiler,
	options?: WebpackHotMiddleware.Options
): NextHandleFunction & WebpackHotMiddleware.EventStream;

declare namespace WebpackHotMiddleware {
	interface Options {
		log?: false | Logger;
		path?: string;
		heartbeat?: number;
		reload?: boolean;
	}

	type Logger = (message?: any, ...optionalParams: any[]) => void;

	interface EventStream {
		publish(payload: any): void;
	}
}