spring-graphql SchemaHandler 源码
spring-graphql SchemaHandler 代码
文件路径：/spring-graphql/src/main/java/org/springframework/graphql/server/webflux/SchemaHandler.java
/*
* Copyright 2020-2021 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.graphql.server.webflux;
import graphql.schema.idl.SchemaPrinter;
import reactor.core.publisher.Mono;
import org.springframework.graphql.execution.GraphQlSource;
import org.springframework.http.MediaType;
import org.springframework.web.reactive.function.server.ServerRequest;
import org.springframework.web.reactive.function.server.ServerResponse;
/**
* Spring WebFlux functional handler that renders the
* {@link graphql.schema.GraphQLSchema} printed via {@link SchemaPrinter}.
*
* @author Rossen Stoyanchev
*/
public class SchemaHandler {
private final GraphQlSource graphQlSource;
private final SchemaPrinter printer = new SchemaPrinter();
public SchemaHandler(GraphQlSource graphQlSource) {
this.graphQlSource = graphQlSource;
}
public Mono<ServerResponse> handleRequest(ServerRequest request) {
return ServerResponse.ok()
.contentType(MediaType.TEXT_PLAIN)
.bodyValue(this.printer.print(graphQlSource.schema()));
}
}
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