Update to latest GraphQL over WebSocket protocol

2021-01-03 21:24:55 +00:00
parent bb9d1dc300
commit 2e32a06a55
16 changed files with 858 additions and 164 deletions
--- a/samples/webflux-websocket/build.gradle
+++ b/samples/webflux-websocket/build.gradle
@@ -0,0 +1,20 @@
+plugins {
+	id 'org.springframework.boot' version '2.4.0-SNAPSHOT'
+	id 'io.spring.dependency-management' version '1.0.10.RELEASE'
+	id 'java'
+}
+group = 'com.example'
+version = '0.0.1-SNAPSHOT'
+description = "GraphQL over WebSocket sample"
+sourceCompatibility = '1.8'
+
+dependencies {
+	implementation project(':spring-graphql-web')
+	implementation 'org.springframework.boot:spring-boot-starter-webflux'
+	implementation 'org.springframework.boot:spring-boot-starter-actuator'
+	developmentOnly 'org.springframework.boot:spring-boot-devtools'
+	testImplementation 'org.springframework.boot:spring-boot-starter-test'
+}
+test {
+	useJUnitPlatform()
+}
--- a/samples/webflux-websocket/src/main/java/io/spring/sample/graphql/SampleApplication.java
+++ b/samples/webflux-websocket/src/main/java/io/spring/sample/graphql/SampleApplication.java
@@ -0,0 +1,28 @@
+/*
+ * Copyright 2002-2020 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 io.spring.sample.graphql;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class SampleApplication {
+
+	public static void main(String[] args) {
+		SpringApplication.run(SampleApplication.class, args);
+	}
+}
--- a/samples/webflux-websocket/src/main/java/io/spring/sample/graphql/SampleWiring.java
+++ b/samples/webflux-websocket/src/main/java/io/spring/sample/graphql/SampleWiring.java
@@ -0,0 +1,23 @@
+package io.spring.sample.graphql;
+
+import java.time.Duration;
+
+import graphql.schema.idl.RuntimeWiring;
+import reactor.core.publisher.Flux;
+
+import org.springframework.boot.graphql.RuntimeWiringCustomizer;
+import org.springframework.stereotype.Component;
+
+@Component
+public class SampleWiring implements RuntimeWiringCustomizer {
+
+	@Override
+	public void customize(RuntimeWiring.Builder builder) {
+		builder.type("Query", wiringBuilder -> wiringBuilder.dataFetcher("hello",
+				env -> "Hello world!"));
+		builder.type("Subscription", wiringBuilder -> wiringBuilder.dataFetcher("greetings",
+				env -> Flux.just("Hi", "Bonjour", "Hola", "Cio", "Zdravo")
+						.delayElements(Duration.ofMillis(500))));
+	}
+
+}
--- a/samples/webflux-websocket/src/main/resources/application.properties
+++ b/samples/webflux-websocket/src/main/resources/application.properties
@@ -0,0 +1,5 @@
+management.endpoints.web.exposure.include=health,metrics,info
+logging.level.org.springframework.web=debug
+logging.level.org.springframework.http=debug
+logging.level.org.springframework.graphql=debug
+logging.level.reactor.netty=debug
--- a/samples/webflux-websocket/src/main/resources/schema.graphqls
+++ b/samples/webflux-websocket/src/main/resources/schema.graphqls
@@ -0,0 +1,11 @@
+schema {
+    query: Query
+    subscription : Subscription
+}
+
+type Query {
+    hello: String
+}
+type Subscription {
+    greetings: String
+}
--- a/samples/webflux-websocket/src/main/resources/static/index.html
+++ b/samples/webflux-websocket/src/main/resources/static/index.html
@@ -0,0 +1,55 @@
+<!DOCTYPE html>
+<html>
+<head>
+    <meta charset="utf-8" />
+    <title>GraphQL over WebSocket</title>
+    <script type="text/javascript" src="https://unpkg.com/graphql-ws/umd/graphql-ws.js"></script>
+</head>
+<body>
+<script type="text/javascript">
+    const client = graphqlWs.createClient({
+        url: 'ws://localhost:8080/graphql/websocket',
+    });
+
+    // query
+    (async () => {
+        const result = await new Promise((resolve, reject) => {
+            let result;
+            client.subscribe(
+                {
+                    query: '{ hello }',
+                },
+                {
+                    next: (data) => (result = data),
+                    error: reject,
+                    complete: () => resolve(result),
+                },
+            );
+        });
+
+        console.log("Query result: " + result);
+    })();
+
+    // subscription
+    (async () => {
+        const onNext = () => {
+            console.log("Subscription data")
+        };
+
+        await new Promise((resolve, reject) => {
+            client.subscribe(
+                {
+                    query: 'subscription { greetings }',
+                },
+                {
+                    next: onNext,
+                    error: reject,
+                    complete: resolve,
+                },
+            );
+        });
+    })();
+
+</script>
+</body>
+</html>