https://github.com/spring-projects/spring-framework: Spring Web (Spring IO)
  • Juergen Hoeller 
/*
 * Copyright 2002-2018 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.springframework.http.server.reactive;

import reactor.core.publisher.Mono;


Lowest level contract for reactive HTTP request handling that serves as a
common denominator across different runtimes.

Higher-level, but still generic, building blocks for applications such as WebFilter, WebSession, ServerWebExchange, and others are available in the org.springframework.web.server package. 
Application level programming models such as annotated controllers and functional handlers are available in the spring-webflux module. 
Typically an HttpHandler represents an entire application with higher-level programming models bridged via WebHttpHandlerBuilder. Multiple applications at unique context paths can be plugged in with the help of the ContextPathCompositeHandler. 
Author:Arjen Poutsma, Rossen Stoyanchev
See Also:
Since:5.0
/**
 * Lowest level contract for reactive HTTP request handling that serves as a
 * common denominator across different runtimes.
 *
 * <p>Higher-level, but still generic, building blocks for applications such as
 * {@code WebFilter}, {@code WebSession}, {@code ServerWebExchange}, and others
 * are available in the {@code org.springframework.web.server} package.
 *
 * <p>Application level programming models such as annotated controllers and
 * functional handlers are available in the {@code spring-webflux} module.
 *
 * <p>Typically an {@link HttpHandler} represents an entire application with
 * higher-level programming models bridged via
 * {@link org.springframework.web.server.adapter.WebHttpHandlerBuilder}.
 * Multiple applications at unique context paths can be plugged in with the
 * help of the {@link ContextPathCompositeHandler}.
 *
 * @author Arjen Poutsma
 * @author Rossen Stoyanchev
 * @since 5.0
 * @see ContextPathCompositeHandler
 */
public interface HttpHandler {

	
Handle the given request and write to the response.

Params:
  • request – current request
  • response – current response
Returns:indicates completion of request handling
/**
	 * Handle the given request and write to the response.
	 * @param request current request
	 * @param response current response
	 * @return indicates completion of request handling
	 */
	Mono<Void> handle(ServerHttpRequest request, ServerHttpResponse response);

}