From 86383726afaeb6dc8931a627871f49d9e75b7294 Mon Sep 17 00:00:00 2001
From: Sambo Chea <sombochea@cubetiqs.com>
Date: Sat, 7 Aug 2021 10:27:34 +0700
Subject: [PATCH] Task: Add basic for graphql implements and add graphql
 playground and add schema and query and subscription resolver

---
 build.gradle.kts                              |  5 ++--
 .../graphql/demo/GraphqlDemoApplication.kt    |  2 +-
 .../cubetiqs/graphql/demo/context/GQuery.kt   | 12 ++++++++++
 .../cubetiqs/graphql/demo/query/HelloQuery.kt | 13 +++++++++++
 .../resolver/HelloSubscriptionResolver.kt     | 15 ++++++++++++
 src/main/resources/application.yml            | 23 ++++++++++++++++++-
 src/main/resources/schema.graphqls            |  7 ++++++
 7 files changed, 73 insertions(+), 4 deletions(-)
 create mode 100644 src/main/kotlin/com/cubetiqs/graphql/demo/context/GQuery.kt
 create mode 100644 src/main/kotlin/com/cubetiqs/graphql/demo/query/HelloQuery.kt
 create mode 100644 src/main/kotlin/com/cubetiqs/graphql/demo/resolver/HelloSubscriptionResolver.kt
 create mode 100644 src/main/resources/schema.graphqls

diff --git a/build.gradle.kts b/build.gradle.kts
index 1ee1e6e..1ddd3b4 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -20,9 +20,10 @@ extra["graphqlVersion"] = "11.0.0"
 
 dependencies {
 	implementation("com.graphql-java-kickstart:graphql-spring-boot-starter:${property("graphqlVersion")}")
-	implementation("com.graphql-java-kickstart:graphiql-spring-boot-starter:${property("graphqlVersion")}")
+	implementation("com.graphql-java-kickstart:playground-spring-boot-starter:${property("graphqlVersion")}")
 	implementation("com.graphql-java-kickstart:voyager-spring-boot-starter:${property("graphqlVersion")}")
 
+	implementation("org.springframework.boot:spring-boot-starter-actuator")
 	implementation("org.springframework.boot:spring-boot-starter-data-jpa")
 	implementation("org.springframework.boot:spring-boot-starter-webflux")
 	implementation("com.fasterxml.jackson.module:jackson-module-kotlin")
@@ -48,4 +49,4 @@ tasks.withType<KotlinCompile> {
 
 tasks.withType<Test> {
 	useJUnitPlatform()
-}
+}
\ No newline at end of file
diff --git a/src/main/kotlin/com/cubetiqs/graphql/demo/GraphqlDemoApplication.kt b/src/main/kotlin/com/cubetiqs/graphql/demo/GraphqlDemoApplication.kt
index bb8a9aa..2036987 100644
--- a/src/main/kotlin/com/cubetiqs/graphql/demo/GraphqlDemoApplication.kt
+++ b/src/main/kotlin/com/cubetiqs/graphql/demo/GraphqlDemoApplication.kt
@@ -7,5 +7,5 @@ import org.springframework.boot.runApplication
 class GraphqlDemoApplication
 
 fun main(args: Array<String>) {
-	runApplication<GraphqlDemoApplication>(*args)
+    runApplication<GraphqlDemoApplication>(*args)
 }
diff --git a/src/main/kotlin/com/cubetiqs/graphql/demo/context/GQuery.kt b/src/main/kotlin/com/cubetiqs/graphql/demo/context/GQuery.kt
new file mode 100644
index 0000000..e72c45e
--- /dev/null
+++ b/src/main/kotlin/com/cubetiqs/graphql/demo/context/GQuery.kt
@@ -0,0 +1,12 @@
+package com.cubetiqs.graphql.demo.context
+
+import org.springframework.core.annotation.AliasFor
+import org.springframework.stereotype.Component
+
+@Retention(AnnotationRetention.RUNTIME)
+@Target(AnnotationTarget.CLASS)
+@Component
+annotation class GQuery(
+    @get:AliasFor(annotation = Component::class)
+    val value: String = "",
+)
diff --git a/src/main/kotlin/com/cubetiqs/graphql/demo/query/HelloQuery.kt b/src/main/kotlin/com/cubetiqs/graphql/demo/query/HelloQuery.kt
new file mode 100644
index 0000000..8078c49
--- /dev/null
+++ b/src/main/kotlin/com/cubetiqs/graphql/demo/query/HelloQuery.kt
@@ -0,0 +1,13 @@
+package com.cubetiqs.graphql.demo.query
+
+import com.cubetiqs.graphql.demo.context.GQuery
+import graphql.kickstart.tools.GraphQLQueryResolver
+import reactor.core.publisher.Mono
+import java.util.concurrent.CompletableFuture
+
+@GQuery
+class HelloQuery : GraphQLQueryResolver {
+    fun hello(): CompletableFuture<String> {
+        return Mono.just("Hello Query...!").toFuture()
+    }
+}
\ No newline at end of file
diff --git a/src/main/kotlin/com/cubetiqs/graphql/demo/resolver/HelloSubscriptionResolver.kt b/src/main/kotlin/com/cubetiqs/graphql/demo/resolver/HelloSubscriptionResolver.kt
new file mode 100644
index 0000000..53f6479
--- /dev/null
+++ b/src/main/kotlin/com/cubetiqs/graphql/demo/resolver/HelloSubscriptionResolver.kt
@@ -0,0 +1,15 @@
+package com.cubetiqs.graphql.demo.resolver
+
+import graphql.kickstart.tools.GraphQLSubscriptionResolver
+import graphql.schema.DataFetchingEnvironment
+import org.reactivestreams.Publisher
+import org.springframework.stereotype.Service
+import reactor.core.publisher.Flux
+import java.time.Duration
+
+@Service
+class HelloSubscriptionResolver : GraphQLSubscriptionResolver {
+    fun hello(env: DataFetchingEnvironment): Publisher<Int> {
+        return Flux.range(1, 10).delayElements(Duration.ofSeconds(1))
+    }
+}
\ No newline at end of file
diff --git a/src/main/resources/application.yml b/src/main/resources/application.yml
index 52dcad1..6a954ab 100644
--- a/src/main/resources/application.yml
+++ b/src/main/resources/application.yml
@@ -1,9 +1,30 @@
 server:
   port: 8081
 
+# Spring Boot
 spring:
   datasource:
     url: jdbc:postgresql://192.168.0.202:5432/graphql-demo
     username: cubetiq
     password: cubetiq007
-    driver-class-name: org.postgresql.Driver
\ No newline at end of file
+    driver-class-name: org.postgresql.Driver
+
+# Spring Boot Actuator
+management:
+  endpoints:
+    web:
+      exposure:
+        include: health,info,metrics
+
+# GraphQL Voyager
+voyager:
+  enabled: true
+  cdn:
+    enabled: false
+
+# GraphQL Playground
+graphql:
+  playground:
+      enabled: true
+      cdn:
+        enabled: false
\ No newline at end of file
diff --git a/src/main/resources/schema.graphqls b/src/main/resources/schema.graphqls
new file mode 100644
index 0000000..216c610
--- /dev/null
+++ b/src/main/resources/schema.graphqls
@@ -0,0 +1,7 @@
+type Query {
+    hello: String
+}
+
+type Subscription {
+    hello: Int
+}
\ No newline at end of file