pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
	<modelVersion>4.0.0</modelVersion>
	<parent>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-parent</artifactId>
		<version>2.7.5</version>
		<relativePath/> <!-- lookup parent from repository -->
	</parent>
	<groupId>com.example</groupId>
	<artifactId>demo</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<name>demo</name>
	<description>Demo project for Spring Boot</description>
	<properties>
		<java.version>11</java.version>
		<kotlin.version>1.6.21</kotlin.version>
	</properties>
	<dependencies>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-graphql</artifactId>
		</dependency>
		<dependency>
			<groupId>com.fasterxml.jackson.module</groupId>
			<artifactId>jackson-module-kotlin</artifactId>
		</dependency>
		<dependency>
			<groupId>org.jetbrains.kotlin</groupId>
			<artifactId>kotlin-reflect</artifactId>
		</dependency>
		<dependency>
			<groupId>org.jetbrains.kotlin</groupId>
			<artifactId>kotlin-stdlib-jdk8</artifactId>
		</dependency>

		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-test</artifactId>
			<scope>test</scope>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-webflux</artifactId>
			<scope>test</scope>
		</dependency>
		<dependency>
			<groupId>org.springframework.graphql</groupId>
			<artifactId>spring-graphql-test</artifactId>
			<scope>test</scope>
		</dependency>


		<!-- GRAPHQL -->


		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-web</artifactId>
		</dependency>

		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-webflux</artifactId>
			<scope>test</scope>
		</dependency>

		<dependency>
			<groupId>com.graphql-java</groupId>
			<artifactId>graphql-java-extended-scalars</artifactId>
			<version>19.0</version>
		</dependency>
	</dependencies>

	<build>
		<sourceDirectory>${project.basedir}/src/main/kotlin</sourceDirectory>
		<testSourceDirectory>${project.basedir}/src/test/kotlin</testSourceDirectory>
		<plugins>
			<plugin>
				<groupId>org.springframework.boot</groupId>
				<artifactId>spring-boot-maven-plugin</artifactId>
			</plugin>
			<plugin>
				<groupId>org.jetbrains.kotlin</groupId>
				<artifactId>kotlin-maven-plugin</artifactId>
				<configuration>
					<args>
						<arg>-Xjsr305=strict</arg>
					</args>
					<compilerPlugins>
						<plugin>spring</plugin>
					</compilerPlugins>
				</configuration>
				<dependencies>
					<dependency>
						<groupId>org.jetbrains.kotlin</groupId>
						<artifactId>kotlin-maven-allopen</artifactId>
						<version>${kotlin.version}</version>
					</dependency>
				</dependencies>
			</plugin>


			<plugin>
				<groupId>io.github.kobylynskyi</groupId>
				<artifactId>graphql-codegen-maven-plugin</artifactId>
				<version>5.5.0</version>
				<executions>
					<execution>
						<goals>
							<goal>generate</goal>
						</goals>
						<configuration>
							<!-- all config options: https://github.com/kobylynskyi/graphql-java-codegen/blob/master/docs/codegen-options.md -->
							<outputDir>${project.build.directory}/generated-sources/generated</outputDir>
							<packageName>software.onn.gqlexample.model</packageName>
							<generatedLanguage>KOTLIN</generatedLanguage>
							<customTypesMapping>
								<Date>java.util.Date</Date>
								<BigDecimal>java.math.BigDecimal</BigDecimal>
							</customTypesMapping>
							<fieldsWithResolvers>@customResolver</fieldsWithResolvers>
							<customAnnotationsMapping>
								<EpochMillis>
									<annotation>com.fasterxml.jackson.databind.annotation.JsonDeserialize(using = com.example.json.EpochMillisScalarDeserializer.class)</annotation>
								</EpochMillis>
							</customAnnotationsMapping>
							<modelNamePrefix>Gql</modelNamePrefix>
						</configuration>
					</execution>
				</executions>
			</plugin>

			<plugin>
				<groupId>org.codehaus.mojo</groupId>
				<artifactId>build-helper-maven-plugin</artifactId>
				<version>3.0.0</version>
				<executions>
					<execution>
						<phase>generate-sources</phase>
						<goals>
							<goal>add-source</goal>
						</goals>
						<configuration>
							<sources>
								<source>target/generated-sources/generated</source>
							</sources>
						</configuration>
					</execution>
				</executions>
			</plugin>
		</plugins>
	</build>

</project>