diff --git a/2022-05/spring-11-data-jpa/solution-01/src/main/java/ru/otus/springdata/repository/EmailRepository.java b/2022-05/spring-11-data-jpa/solution-01/src/main/java/ru/otus/springdata/repository/EmailRepository.java
index 788feda5..50b72f9b 100644
--- a/2022-05/spring-11-data-jpa/solution-01/src/main/java/ru/otus/springdata/repository/EmailRepository.java
+++ b/2022-05/spring-11-data-jpa/solution-01/src/main/java/ru/otus/springdata/repository/EmailRepository.java
@@ -5,8 +5,8 @@ import ru.otus.springdata.domain.Email;
 
 import java.util.List;
 
-public interface EmailRepository extends JpaRepository<Email, Long> {
+public interface EmailRepository {
 
-    @Override
+    //@Override
     List<Email> findAll();
 }
diff --git a/2022-11/spring-30/.gitignore b/2022-11/spring-30/.gitignore
new file mode 100644
index 00000000..549e00a2
--- /dev/null
+++ b/2022-11/spring-30/.gitignore
@@ -0,0 +1,33 @@
+HELP.md
+target/
+!.mvn/wrapper/maven-wrapper.jar
+!**/src/main/**/target/
+!**/src/test/**/target/
+
+### STS ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+
+### IntelliJ IDEA ###
+.idea
+*.iws
+*.iml
+*.ipr
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+build/
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### VS Code ###
+.vscode/
diff --git a/2022-11/spring-30/pom.xml b/2022-11/spring-30/pom.xml
new file mode 100644
index 00000000..56dbc7bd
--- /dev/null
+++ b/2022-11/spring-30/pom.xml
@@ -0,0 +1,17 @@
+<?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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>ru.otus</groupId>
+    <artifactId>spring-30</artifactId>
+    <version>1.0</version>
+
+    <packaging>pom</packaging>
+
+    <modules>
+        <module>spring-30-exercise</module>
+        <module>spring-30-solution</module>
+    </modules>
+</project>
diff --git a/2022-11/spring-30/spring-30-exercise/pom.xml b/2022-11/spring-30/spring-30-exercise/pom.xml
new file mode 100644
index 00000000..0ea46312
--- /dev/null
+++ b/2022-11/spring-30/spring-30-exercise/pom.xml
@@ -0,0 +1,54 @@
+<?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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>ru.otus</groupId>
+    <artifactId>spring-30-exercise</artifactId>
+    <version>1.0-SNAPSHOT</version>
+
+    <parent>
+        <groupId>org.springframework.boot</groupId>
+        <artifactId>spring-boot-starter-parent</artifactId>
+        <version>2.7.9</version>
+        <relativePath/>
+    </parent>
+
+    <properties>
+        <maven.compiler.target>11</maven.compiler.target>
+        <maven.compiler.source>11</maven.compiler.source>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-integration</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework</groupId>
+            <artifactId>spring-messaging</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>org.projectlombok</groupId>
+            <artifactId>lombok</artifactId>
+            <optional>true</optional>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
+</project>
diff --git a/2022-11/spring-30/spring-30-exercise/src/main/java/ru/otus/spring/integration/App.java b/2022-11/spring-30/spring-30-exercise/src/main/java/ru/otus/spring/integration/App.java
new file mode 100644
index 00000000..f39acb46
--- /dev/null
+++ b/2022-11/spring-30/spring-30-exercise/src/main/java/ru/otus/spring/integration/App.java
@@ -0,0 +1,70 @@
+package ru.otus.spring.integration;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.context.ConfigurableApplicationContext;
+import org.springframework.context.annotation.Bean;
+import org.springframework.integration.annotation.IntegrationComponentScan;
+import org.springframework.integration.channel.QueueChannel;
+import org.springframework.integration.dsl.MessageChannels;
+import org.springframework.integration.support.MessageBuilder;
+import org.springframework.messaging.PollableChannel;
+import org.springframework.messaging.SubscribableChannel;
+
+import lombok.extern.slf4j.Slf4j;
+
+
+@SpringBootApplication
+@IntegrationComponentScan
+@Slf4j
+public class App {
+
+	public static void main(String[] args) throws InterruptedException {
+		ConfigurableApplicationContext ctx = SpringApplication.run(App.class, args);
+
+		PollableChannel queueChannel = ctx.getBean("queueChannel", PollableChannel.class);
+		SubscribableChannel directChannel = ctx.getBean("directChannel", SubscribableChannel.class);
+
+
+		log.warn("INIT");
+		for (int i = 0; i < 10; i++) {
+			queueChannel.send(MessageBuilder.withPayload("Start " + i).build());
+		}
+		log.warn("INIT FINISH");
+		Thread.sleep(5000);
+
+		log.warn("START");
+		directChannel.subscribe((msg) -> log.warn("Receive msg: {}", msg));
+		new Thread(() -> {
+			while (true) {
+				directChannel.send(queueChannel.receive());
+			}
+		}).start();
+		log.warn("START FINISH");
+		Thread.sleep(5000);
+
+		log.warn("");
+		queueChannel.send(MessageBuilder.withPayload("Hello").build());
+		Thread.sleep(5000);
+
+		log.warn("");
+		queueChannel.send(MessageBuilder.withPayload("Hello2").build());
+		Thread.sleep(5000);
+
+		log.warn("");
+		queueChannel.send(MessageBuilder.withPayload("Hello3").build());
+
+	}
+
+	@Bean
+	public PollableChannel queueChannel() {
+		return new QueueChannel(10);
+	}
+
+	@Bean
+	public SubscribableChannel directChannel() {
+		return MessageChannels.direct("channel2").get();
+	}
+
+}
+
diff --git a/2022-11/spring-30/spring-30-exercise/src/main/resources/application.yml b/2022-11/spring-30/spring-30-exercise/src/main/resources/application.yml
new file mode 100644
index 00000000..1a9aeb48
--- /dev/null
+++ b/2022-11/spring-30/spring-30-exercise/src/main/resources/application.yml
@@ -0,0 +1,5 @@
+logging:
+  level:
+    root: info
+
+    org.springframework.integration: debug
\ No newline at end of file
diff --git a/2022-11/spring-30/spring-30-exercise/src/test/java/ru/otus/spring/integration/MessagesTest.java b/2022-11/spring-30/spring-30-exercise/src/test/java/ru/otus/spring/integration/MessagesTest.java
new file mode 100644
index 00000000..ffff36c7
--- /dev/null
+++ b/2022-11/spring-30/spring-30-exercise/src/test/java/ru/otus/spring/integration/MessagesTest.java
@@ -0,0 +1,98 @@
+package ru.otus.spring.integration;
+
+
+import org.junit.jupiter.api.Test;
+import org.springframework.messaging.Message;
+import org.springframework.messaging.MessageHeaders;
+import org.springframework.messaging.support.ErrorMessage;
+import org.springframework.messaging.support.GenericMessage;
+import org.springframework.messaging.support.MessageBuilder;
+
+import java.util.Map;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+
+
+@SuppressWarnings("all")
+public class MessagesTest {
+
+	@Test
+	public void testCreateSimpleGenericMessage() {
+		// TODO: Создайте сообщение с payload-ом "Hello" с помощью конструктора
+		Message<String> message = null;
+
+		assertNotNull(message);
+		assertEquals(GenericMessage.class, message.getClass());
+		assertNotNull(message.getPayload());
+		assertEquals("Hello", message.getPayload());
+	}
+
+	@Test
+	public void testCreateGenericMessage() {
+		// TODO: Создайте сообщение с пользователем с помощью конструктора
+		Message<User> message = null;
+
+		assertNotNull(message);
+		assertEquals(GenericMessage.class, message.getClass());
+		assertNotNull(message.getPayload());
+		assertEquals(new User("John", 23), message.getPayload());
+	}
+
+	@Test
+	public void testGenericMessageWithHeaders() {
+		// TODO: Создайте сообщение с payload-ом "Hello" и header-ом "to":"World"
+		Map<String, Object> headers = null;
+		Message<String> message = null;
+
+		assertNotNull(message);
+		assertEquals("Hello", message.getPayload());
+		assertEquals("World", message.getHeaders().get("to", String.class));
+	}
+
+	@Test
+	public void testGenericMessageWithMessageHeaders() {
+		// TODO: Создайте сообщение с payload-ом "Hello" и header-ом "to":"World"
+		MessageHeaders headers = null;
+		Message<String> message = null;
+
+		assertNotNull(message);
+		assertEquals("Hello", message.getPayload());
+		assertEquals("World", message.getHeaders().get("to", String.class));
+	}
+
+	@Test
+	public void testErrorMessage() {
+		// TODO: Создайте сообщение об ошибки с объектом NullPointerException внутри
+		Message errorMessage = null;
+
+		assertNotNull(errorMessage);
+		assertEquals(ErrorMessage.class, errorMessage.getClass());
+		assertEquals(NullPointerException.class, errorMessage.getPayload().getClass());
+	}
+
+	@Test
+	public void testMessageBuilder() {
+		// TODO: Создайте сообщение с payload-ом "Hello" и header-ом "to":"World" с помощью MessageBuilder
+		Message message = null;
+
+		assertNotNull(message);
+		assertEquals("Hello", message.getPayload());
+		assertEquals("World", message.getHeaders().get("to", String.class));
+	}
+
+	@Test
+	public void testBuildFromMessage() {
+		Message<User> original = MessageBuilder
+				.withPayload(new User("Kate", 30))
+				.setHeader("processor", "userService")
+				.build();
+
+		// TODO: Создайте новое сообщение с теми же payload и header-ами c помощью MessageBuilder
+		Message<User> newMessage = null;
+
+		assertNotNull(newMessage);
+		assertEquals(original.getPayload(), newMessage.getPayload());
+		assertEquals(original.getHeaders().get("processor"), newMessage.getHeaders().get("processor"));
+	}
+}
diff --git a/2022-11/spring-30/spring-30-exercise/src/test/java/ru/otus/spring/integration/User.java b/2022-11/spring-30/spring-30-exercise/src/test/java/ru/otus/spring/integration/User.java
new file mode 100644
index 00000000..5dd81ef8
--- /dev/null
+++ b/2022-11/spring-30/spring-30-exercise/src/test/java/ru/otus/spring/integration/User.java
@@ -0,0 +1,36 @@
+package ru.otus.spring.integration;
+
+import java.util.Objects;
+
+public class User {
+
+	private final String name;
+	private final int age;
+
+	public User(String name, int age) {
+		this.name = name;
+		this.age = age;
+	}
+
+	public String getName() {
+		return name;
+	}
+
+	public int getAge() {
+		return age;
+	}
+
+	@Override
+	public boolean equals(Object o) {
+		if (this == o) return true;
+		if (!(o instanceof User)) return false;
+		User user = (User) o;
+		return age == user.age &&
+				Objects.equals(name, user.name);
+	}
+
+	@Override
+	public int hashCode() {
+		return Objects.hash(name, age);
+	}
+}
diff --git a/2022-11/spring-30/spring-30-solution/pom.xml b/2022-11/spring-30/spring-30-solution/pom.xml
new file mode 100644
index 00000000..d280368c
--- /dev/null
+++ b/2022-11/spring-30/spring-30-solution/pom.xml
@@ -0,0 +1,52 @@
+<?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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>ru.otus</groupId>
+    <artifactId>spring-30-solution</artifactId>
+    <version>1.0-SNAPSHOT</version>
+
+    <parent>
+        <groupId>org.springframework.boot</groupId>
+        <artifactId>spring-boot-starter-parent</artifactId>
+        <version>2.7.9</version>
+    </parent>
+
+    <properties>
+        <maven.compiler.target>11</maven.compiler.target>
+        <maven.compiler.source>11</maven.compiler.source>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-integration</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework</groupId>
+            <artifactId>spring-messaging</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.projectlombok</groupId>
+            <artifactId>lombok</artifactId>
+            <optional>true</optional>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
+</project>
diff --git a/2022-11/spring-30/spring-30-solution/src/main/java/ru/otus/spring/integration/App.java b/2022-11/spring-30/spring-30-solution/src/main/java/ru/otus/spring/integration/App.java
new file mode 100644
index 00000000..49630427
--- /dev/null
+++ b/2022-11/spring-30/spring-30-solution/src/main/java/ru/otus/spring/integration/App.java
@@ -0,0 +1,70 @@
+package ru.otus.spring.integration;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.context.ConfigurableApplicationContext;
+import org.springframework.context.annotation.Bean;
+import org.springframework.integration.annotation.IntegrationComponentScan;
+import org.springframework.integration.channel.QueueChannel;
+import org.springframework.integration.dsl.MessageChannels;
+import org.springframework.integration.support.MessageBuilder;
+import org.springframework.messaging.PollableChannel;
+import org.springframework.messaging.SubscribableChannel;
+
+import lombok.extern.slf4j.Slf4j;
+
+
+@SpringBootApplication
+@IntegrationComponentScan
+@Slf4j
+public class App {
+
+    public static void main(String[] args) throws InterruptedException {
+        ConfigurableApplicationContext ctx = SpringApplication.run(App.class, args);
+
+        PollableChannel queueChannel = ctx.getBean("queueChannel", PollableChannel.class);
+        SubscribableChannel directChannel = ctx.getBean("directChannel", SubscribableChannel.class);
+
+
+        log.warn("INIT");
+        for (int i = 0; i < 10; i++) {
+            queueChannel.send(MessageBuilder.withPayload("Start " + i).build());
+        }
+        log.warn("INIT FINISH");
+        Thread.sleep(5000);
+
+        log.warn("START");
+        directChannel.subscribe((msg) -> log.warn("Receive msg: {}", msg));
+        new Thread(() -> {
+            while (true) {
+                directChannel.send(queueChannel.receive());
+            }
+        }).start();
+        log.warn("START FINISH");
+        Thread.sleep(5000);
+
+        log.warn("");
+        queueChannel.send(MessageBuilder.withPayload("Hello").build());
+        Thread.sleep(5000);
+
+        log.warn("");
+        queueChannel.send(MessageBuilder.withPayload("Hello2").build());
+        Thread.sleep(5000);
+
+        log.warn("");
+        queueChannel.send(MessageBuilder.withPayload("Hello3").build());
+
+    }
+
+    @Bean
+    public PollableChannel queueChannel() {
+        return new QueueChannel(10);
+    }
+
+    @Bean
+    public SubscribableChannel directChannel() {
+        return MessageChannels.direct("channel2").get();
+    }
+
+}
+
diff --git a/2022-11/spring-30/spring-30-solution/src/main/resources/application.yml b/2022-11/spring-30/spring-30-solution/src/main/resources/application.yml
new file mode 100644
index 00000000..1a9aeb48
--- /dev/null
+++ b/2022-11/spring-30/spring-30-solution/src/main/resources/application.yml
@@ -0,0 +1,5 @@
+logging:
+  level:
+    root: info
+
+    org.springframework.integration: debug
\ No newline at end of file
diff --git a/2022-11/spring-30/spring-30-solution/src/test/java/ru/otus/spring/integration/MessagesTest.java b/2022-11/spring-30/spring-30-solution/src/test/java/ru/otus/spring/integration/MessagesTest.java
new file mode 100644
index 00000000..496c003f
--- /dev/null
+++ b/2022-11/spring-30/spring-30-solution/src/test/java/ru/otus/spring/integration/MessagesTest.java
@@ -0,0 +1,101 @@
+package ru.otus.spring.integration;
+
+
+import org.junit.jupiter.api.Test;
+import org.springframework.messaging.Message;
+import org.springframework.messaging.MessageHeaders;
+import org.springframework.messaging.support.ErrorMessage;
+import org.springframework.messaging.support.GenericMessage;
+import org.springframework.messaging.support.MessageBuilder;
+
+import java.util.Collections;
+import java.util.Map;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+
+
+@SuppressWarnings("all")
+public class MessagesTest {
+
+	@Test
+	public void testCreateSimpleGenericMessage() {
+		// TODO: Создайте сообщение с payload-ом "Hello" с помощью конструктора
+		Message<String> message = new GenericMessage<String>("Hello");
+
+		assertNotNull(message);
+		assertEquals(GenericMessage.class, message.getClass());
+		assertNotNull(message.getPayload());
+		assertEquals("Hello", message.getPayload());
+	}
+
+	@Test
+	public void testCreateGenericMessage() {
+		// TODO: Создайте сообщение с пользователем с помощью конструктора
+		Message<User> message = new GenericMessage<User>(new User("John", 23));
+
+		assertNotNull(message);
+		assertEquals(GenericMessage.class, message.getClass());
+		assertNotNull(message.getPayload());
+		assertEquals(new User("John", 23), message.getPayload());
+	}
+
+	@Test
+	public void testGenericMessageWithHeaders() {
+		// TODO: Создайте сообщение с payload-ом "Hello" и header-ом "to":"World"
+		Map<String, Object> headers = Collections.singletonMap("to", "World");
+		Message<String> message = new GenericMessage<>("Hello", headers);
+
+		assertNotNull(message);
+		assertEquals("Hello", message.getPayload());
+		assertEquals("World", message.getHeaders().get("to", String.class));
+	}
+
+	@Test
+	public void testGenericMessageWithMessageHeaders() {
+		// TODO: Создайте сообщение с payload-ом "Hello" и header-ом "to":"World"
+		MessageHeaders headers = new MessageHeaders(Collections.singletonMap("to", "World"));
+		Message<String> message = new GenericMessage<>("Hello", headers);
+
+		assertNotNull(message);
+		assertEquals("Hello", message.getPayload());
+		assertEquals("World", message.getHeaders().get("to", String.class));
+	}
+
+	@Test
+	public void testErrorMessage() {
+		// TODO: Создайте сообщение об ошибки с объектом NullPointerException внутри
+		Message errorMessage = new ErrorMessage(new NullPointerException());
+
+		assertNotNull(errorMessage);
+		assertEquals(ErrorMessage.class, errorMessage.getClass());
+		assertEquals(NullPointerException.class, errorMessage.getPayload().getClass());
+	}
+
+	@Test
+	public void testMessageBuilder() {
+		// TODO: Создайте сообщение с payload-ом "Hello" и header-ом "to":"World" с помощью MessageBuilder
+		Message message = MessageBuilder.withPayload("Hello")
+				.setHeader("to", "World")
+				.build();
+
+		assertNotNull(message);
+		assertEquals("Hello", message.getPayload());
+		assertEquals("World", message.getHeaders().get("to", String.class));
+	}
+
+	@Test
+	public void testBuildFromMessage() {
+		Message<User> original = MessageBuilder
+				.withPayload(new User("Kate", 30))
+				.setHeader("processor", "userService")
+				.build();
+
+		// TODO: Создайте новое сообщение с теми же payload и header-ами c помощью MessageBuilder
+		Message<User> newMessage = MessageBuilder.fromMessage(original).build();
+
+		assertNotNull(newMessage);
+		assertEquals(original.getPayload(), newMessage.getPayload());
+		assertEquals(original.getHeaders().get("processor"), newMessage.getHeaders().get("processor"));
+	}
+}
diff --git a/2022-11/spring-30/spring-30-solution/src/test/java/ru/otus/spring/integration/User.java b/2022-11/spring-30/spring-30-solution/src/test/java/ru/otus/spring/integration/User.java
new file mode 100644
index 00000000..5dd81ef8
--- /dev/null
+++ b/2022-11/spring-30/spring-30-solution/src/test/java/ru/otus/spring/integration/User.java
@@ -0,0 +1,36 @@
+package ru.otus.spring.integration;
+
+import java.util.Objects;
+
+public class User {
+
+	private final String name;
+	private final int age;
+
+	public User(String name, int age) {
+		this.name = name;
+		this.age = age;
+	}
+
+	public String getName() {
+		return name;
+	}
+
+	public int getAge() {
+		return age;
+	}
+
+	@Override
+	public boolean equals(Object o) {
+		if (this == o) return true;
+		if (!(o instanceof User)) return false;
+		User user = (User) o;
+		return age == user.age &&
+				Objects.equals(name, user.name);
+	}
+
+	@Override
+	public int hashCode() {
+		return Objects.hash(name, age);
+	}
+}
diff --git a/2023-01/spring-15/spring-data-keyvalue-class-work/pom.xml b/2023-01/spring-15/spring-data-keyvalue-class-work/pom.xml
new file mode 100644
index 00000000..b2fbb1c3
--- /dev/null
+++ b/2023-01/spring-15/spring-data-keyvalue-class-work/pom.xml
@@ -0,0 +1,17 @@
+<?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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>ru.otus</groupId>
+    <artifactId>spring-data-keyvalue-class-work</artifactId>
+    <version>1.0</version>
+
+    <packaging>pom</packaging>
+
+    <modules>
+        <module>spring-data-keyvalue-exercise</module>
+        <module>spring-data-keyvalue-solution</module>
+    </modules>
+</project>
diff --git a/2023-01/spring-15/spring-data-keyvalue-class-work/spring-data-keyvalue-exercise/pom.xml b/2023-01/spring-15/spring-data-keyvalue-class-work/spring-data-keyvalue-exercise/pom.xml
new file mode 100644
index 00000000..180b1a60
--- /dev/null
+++ b/2023-01/spring-15/spring-data-keyvalue-class-work/spring-data-keyvalue-exercise/pom.xml
@@ -0,0 +1,43 @@
+<?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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>ru.otus</groupId>
+    <artifactId>spring-data-keyvalue-exercise</artifactId>
+    <version>1.0-SNAPSHOT</version>
+
+    <parent>
+        <groupId>org.springframework.boot</groupId>
+        <artifactId>spring-boot-starter-parent</artifactId>
+        <version>2.2.1.RELEASE</version>
+        <relativePath />
+    </parent>
+
+    <properties>
+        <maven.compiler.source>11</maven.compiler.source>
+        <maven.compiler.target>11</maven.compiler.target>
+    </properties>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter</artifactId>
+        </dependency>
+        <!--<dependency>-->
+            <!--<groupId>org.springframework.data</groupId>-->
+            <!--<artifactId>spring-data-keyvalue</artifactId>-->
+            <!--<version>2.2.1.RELEASE</version>-->
+        <!--</dependency>-->
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
+</project>
diff --git a/2023-01/spring-15/spring-data-keyvalue-class-work/spring-data-keyvalue-exercise/src/main/java/ru/otus/spring/Main.java b/2023-01/spring-15/spring-data-keyvalue-class-work/spring-data-keyvalue-exercise/src/main/java/ru/otus/spring/Main.java
new file mode 100644
index 00000000..d0d34e97
--- /dev/null
+++ b/2023-01/spring-15/spring-data-keyvalue-class-work/spring-data-keyvalue-exercise/src/main/java/ru/otus/spring/Main.java
@@ -0,0 +1,29 @@
+package ru.otus.spring;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.data.map.repository.config.EnableMapRepositories;
+import ru.otus.spring.domain.Person;
+import ru.otus.spring.repostory.PersonRepository;
+
+import javax.annotation.PostConstruct;
+
+@SpringBootApplication
+public class Main {
+
+    public static void main(String[] args) {
+        SpringApplication.run(Main.class);
+    }
+
+    @SuppressWarnings("SpringJavaAutowiredFieldsWarningInspection")
+    @Autowired
+    private PersonRepository repository;
+
+    @PostConstruct
+    public void init() {
+        repository.save(new Person(1, "Pushkin"));
+
+        repository.findAll();
+    }
+}
diff --git a/2023-01/spring-15/spring-data-keyvalue-class-work/spring-data-keyvalue-exercise/src/main/java/ru/otus/spring/domain/Email.java b/2023-01/spring-15/spring-data-keyvalue-class-work/spring-data-keyvalue-exercise/src/main/java/ru/otus/spring/domain/Email.java
new file mode 100644
index 00000000..c1e24a7d
--- /dev/null
+++ b/2023-01/spring-15/spring-data-keyvalue-class-work/spring-data-keyvalue-exercise/src/main/java/ru/otus/spring/domain/Email.java
@@ -0,0 +1,25 @@
+package ru.otus.spring.domain;
+
+public class Email {
+
+    private int id;
+
+    private String email;
+
+    public Email(String email) {
+        this.email = email;
+    }
+
+    public Email(int id, String email) {
+        this.id = id;
+        this.email = email;
+    }
+
+    public int getId() {
+        return id;
+    }
+
+    public String getEmail() {
+        return email;
+    }
+}
diff --git a/2023-01/spring-15/spring-data-keyvalue-class-work/spring-data-keyvalue-exercise/src/main/java/ru/otus/spring/domain/Person.java b/2023-01/spring-15/spring-data-keyvalue-class-work/spring-data-keyvalue-exercise/src/main/java/ru/otus/spring/domain/Person.java
new file mode 100644
index 00000000..f707e14e
--- /dev/null
+++ b/2023-01/spring-15/spring-data-keyvalue-class-work/spring-data-keyvalue-exercise/src/main/java/ru/otus/spring/domain/Person.java
@@ -0,0 +1,35 @@
+package ru.otus.spring.domain;
+
+import org.springframework.data.annotation.Id;
+import org.springframework.data.keyvalue.annotation.KeySpace;
+
+public class Person {
+
+    private int id;
+    private String name;
+
+    public Person(String name) {
+        this.name = name;
+    }
+
+    public Person(int id, String name) {
+        this.id = id;
+        this.name = name;
+    }
+
+    public int getId() {
+        return id;
+    }
+
+    public void setId(int id) {
+        this.id = id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+}
diff --git a/2023-01/spring-15/spring-data-keyvalue-class-work/spring-data-keyvalue-exercise/src/main/java/ru/otus/spring/repostory/PersonRepository.java b/2023-01/spring-15/spring-data-keyvalue-class-work/spring-data-keyvalue-exercise/src/main/java/ru/otus/spring/repostory/PersonRepository.java
new file mode 100644
index 00000000..4b20e5b7
--- /dev/null
+++ b/2023-01/spring-15/spring-data-keyvalue-class-work/spring-data-keyvalue-exercise/src/main/java/ru/otus/spring/repostory/PersonRepository.java
@@ -0,0 +1,11 @@
+package ru.otus.spring.repostory;
+
+import org.springframework.data.repository.CrudRepository;
+import ru.otus.spring.domain.Person;
+
+import java.util.List;
+
+public interface PersonRepository extends CrudRepository<Person, Integer> {
+
+    List<Person> findAll();
+}
diff --git a/2023-01/spring-15/spring-data-keyvalue-class-work/spring-data-keyvalue-solution/pom.xml b/2023-01/spring-15/spring-data-keyvalue-class-work/spring-data-keyvalue-solution/pom.xml
new file mode 100644
index 00000000..7d0041e8
--- /dev/null
+++ b/2023-01/spring-15/spring-data-keyvalue-class-work/spring-data-keyvalue-solution/pom.xml
@@ -0,0 +1,43 @@
+<?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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>ru.otus</groupId>
+    <artifactId>spring-data-keyvalue-solution</artifactId>
+    <version>1.0-SNAPSHOT</version>
+
+    <parent>
+        <groupId>org.springframework.boot</groupId>
+        <artifactId>spring-boot-starter-parent</artifactId>
+        <version>2.2.1.RELEASE</version>
+        <relativePath />
+    </parent>
+
+    <properties>
+        <maven.compiler.source>11</maven.compiler.source>
+        <maven.compiler.target>11</maven.compiler.target>
+    </properties>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.data</groupId>
+            <artifactId>spring-data-keyvalue</artifactId>
+            <version>2.2.1.RELEASE</version>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
+</project>
diff --git a/2023-01/spring-15/spring-data-keyvalue-class-work/spring-data-keyvalue-solution/src/main/java/ru/otus/spring/Main.java b/2023-01/spring-15/spring-data-keyvalue-class-work/spring-data-keyvalue-solution/src/main/java/ru/otus/spring/Main.java
new file mode 100644
index 00000000..42d9078f
--- /dev/null
+++ b/2023-01/spring-15/spring-data-keyvalue-class-work/spring-data-keyvalue-solution/src/main/java/ru/otus/spring/Main.java
@@ -0,0 +1,39 @@
+package ru.otus.spring;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.data.map.repository.config.EnableMapRepositories;
+import ru.otus.spring.domain.Email;
+import ru.otus.spring.domain.Person;
+import ru.otus.spring.repostory.EmailRepository;
+import ru.otus.spring.repostory.PersonRepository;
+
+import javax.annotation.PostConstruct;
+
+@SpringBootApplication
+@EnableMapRepositories
+public class Main {
+
+    public static void main(String[] args) {
+        SpringApplication.run(Main.class);
+    }
+
+    @SuppressWarnings("SpringJavaAutowiredFieldsWarningInspection")
+    @Autowired
+    private PersonRepository repository;
+
+    @Autowired
+    private EmailRepository emailRepository;
+
+    @PostConstruct
+    public void init() {
+        repository.save(new Person(1, "Pushkin"));
+        repository.save(new Person(2, "Lermontov"));
+        System.out.println(repository.findAll());
+
+        emailRepository.save(new Email(1, "alex@pushkin.com"));
+        emailRepository.save(new Email(2, "micha@pushkin.com"));
+        System.out.println(emailRepository.findAll());
+    }
+}
diff --git a/2023-01/spring-15/spring-data-keyvalue-class-work/spring-data-keyvalue-solution/src/main/java/ru/otus/spring/domain/Email.java b/2023-01/spring-15/spring-data-keyvalue-class-work/spring-data-keyvalue-solution/src/main/java/ru/otus/spring/domain/Email.java
new file mode 100644
index 00000000..86ddb0c1
--- /dev/null
+++ b/2023-01/spring-15/spring-data-keyvalue-class-work/spring-data-keyvalue-solution/src/main/java/ru/otus/spring/domain/Email.java
@@ -0,0 +1,37 @@
+package ru.otus.spring.domain;
+
+import org.springframework.data.annotation.Id;
+import org.springframework.data.keyvalue.annotation.KeySpace;
+
+@KeySpace("email")
+public class Email {
+    @Id
+    private int id;
+
+    private String email;
+
+    public Email(int id, String email) {
+        this.id = id;
+        this.email = email;
+    }
+
+    public Email(String email) {
+        this.email = email;
+    }
+
+    public int getId() {
+        return id;
+    }
+
+    public String getEmail() {
+        return email;
+    }
+
+    @Override
+    public String toString() {
+        return "Email{" +
+                "id=" + id +
+                ", email='" + email + '\'' +
+                '}';
+    }
+}
diff --git a/2023-01/spring-15/spring-data-keyvalue-class-work/spring-data-keyvalue-solution/src/main/java/ru/otus/spring/domain/Person.java b/2023-01/spring-15/spring-data-keyvalue-class-work/spring-data-keyvalue-solution/src/main/java/ru/otus/spring/domain/Person.java
new file mode 100644
index 00000000..b0181bd1
--- /dev/null
+++ b/2023-01/spring-15/spring-data-keyvalue-class-work/spring-data-keyvalue-solution/src/main/java/ru/otus/spring/domain/Person.java
@@ -0,0 +1,45 @@
+package ru.otus.spring.domain;
+
+import org.springframework.data.annotation.Id;
+import org.springframework.data.keyvalue.annotation.KeySpace;
+
+@KeySpace("person")
+public class Person {
+
+    @Id
+    private int id;
+    private String name;
+
+    public Person(int id, String name) {
+        this.id = id;
+        this.name = name;
+    }
+
+    public Person(String name) {
+        this.name = name;
+    }
+
+    public int getId() {
+        return id;
+    }
+
+    public void setId(int id) {
+        this.id = id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    @Override
+    public String toString() {
+        return "Person{" +
+                "id=" + id +
+                ", name='" + name + '\'' +
+                '}';
+    }
+}
diff --git a/2023-01/spring-15/spring-data-keyvalue-class-work/spring-data-keyvalue-solution/src/main/java/ru/otus/spring/repostory/EmailRepository.java b/2023-01/spring-15/spring-data-keyvalue-class-work/spring-data-keyvalue-solution/src/main/java/ru/otus/spring/repostory/EmailRepository.java
new file mode 100644
index 00000000..6ce870a2
--- /dev/null
+++ b/2023-01/spring-15/spring-data-keyvalue-class-work/spring-data-keyvalue-solution/src/main/java/ru/otus/spring/repostory/EmailRepository.java
@@ -0,0 +1,14 @@
+package ru.otus.spring.repostory;
+
+import org.springframework.data.keyvalue.repository.KeyValueRepository;
+import org.springframework.stereotype.Repository;
+import ru.otus.spring.domain.Email;
+import ru.otus.spring.domain.Person;
+
+import java.util.List;
+
+public interface EmailRepository  {
+
+    List<Email> findAll();
+    Email save(Email email);
+}
diff --git a/2023-01/spring-15/spring-data-keyvalue-class-work/spring-data-keyvalue-solution/src/main/java/ru/otus/spring/repostory/EmailRepositoryImpl.java b/2023-01/spring-15/spring-data-keyvalue-class-work/spring-data-keyvalue-solution/src/main/java/ru/otus/spring/repostory/EmailRepositoryImpl.java
new file mode 100644
index 00000000..e2aa75a1
--- /dev/null
+++ b/2023-01/spring-15/spring-data-keyvalue-class-work/spring-data-keyvalue-solution/src/main/java/ru/otus/spring/repostory/EmailRepositoryImpl.java
@@ -0,0 +1,27 @@
+package ru.otus.spring.repostory;
+
+import org.springframework.data.keyvalue.core.KeyValueOperations;
+import org.springframework.stereotype.Repository;
+import ru.otus.spring.domain.Email;
+
+import java.util.List;
+
+@Repository
+public class EmailRepositoryImpl implements EmailRepository {
+
+    final private KeyValueOperations keyValueTemplate;
+
+    public EmailRepositoryImpl(KeyValueOperations keyValueTemplate) {
+        this.keyValueTemplate = keyValueTemplate;
+    }
+
+    @Override
+    public List<Email> findAll() {
+        return (List<Email>) keyValueTemplate.findAll(Email.class);
+    }
+
+    @Override
+    public Email save(Email email) {
+        return keyValueTemplate.insert(email);
+    }
+}
diff --git a/2023-01/spring-15/spring-data-keyvalue-class-work/spring-data-keyvalue-solution/src/main/java/ru/otus/spring/repostory/PersonRepository.java b/2023-01/spring-15/spring-data-keyvalue-class-work/spring-data-keyvalue-solution/src/main/java/ru/otus/spring/repostory/PersonRepository.java
new file mode 100644
index 00000000..99a93c24
--- /dev/null
+++ b/2023-01/spring-15/spring-data-keyvalue-class-work/spring-data-keyvalue-solution/src/main/java/ru/otus/spring/repostory/PersonRepository.java
@@ -0,0 +1,12 @@
+package ru.otus.spring.repostory;
+
+import org.springframework.data.keyvalue.repository.KeyValueRepository;
+import org.springframework.data.repository.CrudRepository;
+import ru.otus.spring.domain.Person;
+
+import java.util.List;
+
+public interface PersonRepository extends KeyValueRepository<Person, Integer> {
+
+    List<Person> findAll();
+}
diff --git a/2023-01/spring-15/spring-data-mongo-class-work/pom.xml b/2023-01/spring-15/spring-data-mongo-class-work/pom.xml
new file mode 100644
index 00000000..a13c15b7
--- /dev/null
+++ b/2023-01/spring-15/spring-data-mongo-class-work/pom.xml
@@ -0,0 +1,17 @@
+<?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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>ru.otus</groupId>
+    <artifactId>spring-data-mongo-class-work</artifactId>
+    <version>1.0</version>
+
+    <packaging>pom</packaging>
+
+    <modules>
+        <module>spring-data-mongo-exercise</module>
+        <module>spring-data-mongo-solution</module>
+    </modules>
+</project>
diff --git a/2023-01/spring-15/spring-data-mongo-class-work/spring-data-mongo-exercise/pom.xml b/2023-01/spring-15/spring-data-mongo-class-work/spring-data-mongo-exercise/pom.xml
new file mode 100644
index 00000000..5cb9d0e1
--- /dev/null
+++ b/2023-01/spring-15/spring-data-mongo-class-work/spring-data-mongo-exercise/pom.xml
@@ -0,0 +1,46 @@
+<?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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>ru.otus</groupId>
+    <artifactId>spring-data-mongo-exercise</artifactId>
+    <version>1.0-SNAPSHOT</version>
+
+    <parent>
+        <groupId>org.springframework.boot</groupId>
+        <artifactId>spring-boot-starter-parent</artifactId>
+        <version>2.3.4.RELEASE</version>
+        <relativePath />
+    </parent>
+
+    <properties>
+        <maven.compiler.source>11</maven.compiler.source>
+        <maven.compiler.target>11</maven.compiler.target>
+    </properties>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-data-mongodb</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>de.flapdoodle.embed</groupId>
+            <artifactId>de.flapdoodle.embed.mongo</artifactId>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
+</project>
diff --git a/2023-01/spring-15/spring-data-mongo-class-work/spring-data-mongo-exercise/src/main/java/ru/otus/spring/Main.java b/2023-01/spring-15/spring-data-mongo-class-work/spring-data-mongo-exercise/src/main/java/ru/otus/spring/Main.java
new file mode 100644
index 00000000..d67d7972
--- /dev/null
+++ b/2023-01/spring-15/spring-data-mongo-class-work/spring-data-mongo-exercise/src/main/java/ru/otus/spring/Main.java
@@ -0,0 +1,31 @@
+package ru.otus.spring;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.context.ApplicationContext;
+import ru.otus.spring.domain.Person;
+import ru.otus.spring.repostory.PersonRepository;
+
+@SpringBootApplication
+public class Main {
+
+    @SuppressWarnings("SpringJavaAutowiredFieldsWarningInspection")
+    @Autowired
+    private PersonRepository repository;
+
+    public static void main(String[] args) throws InterruptedException {
+        ApplicationContext context = SpringApplication.run(Main.class);
+
+        PersonRepository repository = context.getBean(PersonRepository.class);
+
+        repository.save(new Person("Dostoevsky"));
+
+        Thread.sleep(3000);
+
+        System.out.println("\n\n\n----------------------------------------------\n\n");
+        System.out.println("Авторы в БД:");
+        repository.findAll().forEach(p -> System.out.println(p.getName()));
+        System.out.println("\n\n----------------------------------------------\n\n\n");
+    }
+}
diff --git a/2023-01/spring-15/spring-data-mongo-class-work/spring-data-mongo-exercise/src/main/java/ru/otus/spring/domain/Person.java b/2023-01/spring-15/spring-data-mongo-class-work/spring-data-mongo-exercise/src/main/java/ru/otus/spring/domain/Person.java
new file mode 100644
index 00000000..2bdc3894
--- /dev/null
+++ b/2023-01/spring-15/spring-data-mongo-class-work/spring-data-mongo-exercise/src/main/java/ru/otus/spring/domain/Person.java
@@ -0,0 +1,27 @@
+package ru.otus.spring.domain;
+
+public class Person {
+
+    private String id;
+    private String name;
+
+    public Person(String name) {
+        this.name = name;
+    }
+
+    public String getId() {
+        return id;
+    }
+
+    public void setId(String id) {
+        this.id = id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+}
diff --git a/2023-01/spring-15/spring-data-mongo-class-work/spring-data-mongo-exercise/src/main/java/ru/otus/spring/repostory/PersonRepository.java b/2023-01/spring-15/spring-data-mongo-class-work/spring-data-mongo-exercise/src/main/java/ru/otus/spring/repostory/PersonRepository.java
new file mode 100644
index 00000000..763a2288
--- /dev/null
+++ b/2023-01/spring-15/spring-data-mongo-class-work/spring-data-mongo-exercise/src/main/java/ru/otus/spring/repostory/PersonRepository.java
@@ -0,0 +1,12 @@
+package ru.otus.spring.repostory;
+
+import org.springframework.data.repository.CrudRepository;
+import ru.otus.spring.domain.Person;
+
+import java.util.List;
+
+
+public interface PersonRepository extends CrudRepository<Person, Integer> {
+
+    List<Person> findAll();
+}
diff --git a/2023-01/spring-15/spring-data-mongo-class-work/spring-data-mongo-exercise/src/main/resources/application.yml b/2023-01/spring-15/spring-data-mongo-class-work/spring-data-mongo-exercise/src/main/resources/application.yml
new file mode 100644
index 00000000..9bffd5dc
--- /dev/null
+++ b/2023-01/spring-15/spring-data-mongo-class-work/spring-data-mongo-exercise/src/main/resources/application.yml
@@ -0,0 +1,4 @@
+spring:
+  data:
+    mongodb:
+      database: company
diff --git a/2023-01/spring-15/spring-data-mongo-class-work/spring-data-mongo-solution/pom.xml b/2023-01/spring-15/spring-data-mongo-class-work/spring-data-mongo-solution/pom.xml
new file mode 100644
index 00000000..6045db5d
--- /dev/null
+++ b/2023-01/spring-15/spring-data-mongo-class-work/spring-data-mongo-solution/pom.xml
@@ -0,0 +1,61 @@
+<?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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>ru.otus</groupId>
+    <artifactId>spring-data-mongo-solution</artifactId>
+    <version>1.0-SNAPSHOT</version>
+
+    <parent>
+        <groupId>org.springframework.boot</groupId>
+        <artifactId>spring-boot-starter-parent</artifactId>
+        <version>2.3.4.RELEASE</version>
+        <relativePath />
+    </parent>
+
+    <properties>
+        <maven.compiler.source>11</maven.compiler.source>
+        <maven.compiler.target>11</maven.compiler.target>
+        <mongock.version>4.1.17</mongock.version>
+    </properties>
+
+
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-data-mongodb</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>de.flapdoodle.embed</groupId>
+            <artifactId>de.flapdoodle.embed.mongo</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>com.github.cloudyrock.mongock</groupId>
+            <artifactId>mongock-spring-v5</artifactId>
+            <version>${mongock.version}</version>
+        </dependency>
+
+        <dependency>
+            <groupId>com.github.cloudyrock.mongock</groupId>
+            <artifactId>mongodb-springdata-v3-driver</artifactId>
+            <version>${mongock.version}</version>
+        </dependency>
+
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
+</project>
diff --git a/2023-01/spring-15/spring-data-mongo-class-work/spring-data-mongo-solution/src/main/java/ru/otus/spring/Main.java b/2023-01/spring-15/spring-data-mongo-class-work/spring-data-mongo-solution/src/main/java/ru/otus/spring/Main.java
new file mode 100644
index 00000000..fb0e8a60
--- /dev/null
+++ b/2023-01/spring-15/spring-data-mongo-class-work/spring-data-mongo-solution/src/main/java/ru/otus/spring/Main.java
@@ -0,0 +1,35 @@
+package ru.otus.spring;
+
+import com.github.cloudyrock.spring.v5.EnableMongock;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.context.ApplicationContext;
+import org.springframework.data.mongodb.repository.config.EnableMongoRepositories;
+import ru.otus.spring.domain.Person;
+import ru.otus.spring.repostory.PersonRepository;
+
+@EnableMongock
+@EnableMongoRepositories
+@SpringBootApplication
+public class Main {
+
+    @SuppressWarnings("SpringJavaAutowiredFieldsWarningInspection")
+    @Autowired
+    private PersonRepository repository;
+
+    public static void main(String[] args) throws InterruptedException {
+        ApplicationContext context = SpringApplication.run(Main.class);
+
+        PersonRepository repository = context.getBean(PersonRepository.class);
+
+        repository.save(new Person("Dostoevsky"));
+
+        Thread.sleep(3000);
+
+        System.out.println("\n\n\n----------------------------------------------\n\n");
+        System.out.println("Авторы в БД:");
+        repository.findAll().forEach(p -> System.out.println(p.getName()));
+        System.out.println("\n\n----------------------------------------------\n\n\n");
+    }
+}
diff --git a/2023-01/spring-15/spring-data-mongo-class-work/spring-data-mongo-solution/src/main/java/ru/otus/spring/domain/Person.java b/2023-01/spring-15/spring-data-mongo-class-work/spring-data-mongo-solution/src/main/java/ru/otus/spring/domain/Person.java
new file mode 100644
index 00000000..12cf6355
--- /dev/null
+++ b/2023-01/spring-15/spring-data-mongo-class-work/spring-data-mongo-solution/src/main/java/ru/otus/spring/domain/Person.java
@@ -0,0 +1,32 @@
+package ru.otus.spring.domain;
+
+import org.springframework.data.annotation.Id;
+import org.springframework.data.mongodb.core.mapping.Document;
+
+@Document(collection = "persons")
+public class Person {
+
+    @Id
+    private String id;
+    private String name;
+
+    public Person(String name) {
+        this.name = name;
+    }
+
+    public String getId() {
+        return id;
+    }
+
+    public void setId(String id) {
+        this.id = id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+}
diff --git a/2023-01/spring-15/spring-data-mongo-class-work/spring-data-mongo-solution/src/main/java/ru/otus/spring/mongock/changelog/DatabaseChangelog.java b/2023-01/spring-15/spring-data-mongo-class-work/spring-data-mongo-solution/src/main/java/ru/otus/spring/mongock/changelog/DatabaseChangelog.java
new file mode 100644
index 00000000..f9226e50
--- /dev/null
+++ b/2023-01/spring-15/spring-data-mongo-class-work/spring-data-mongo-solution/src/main/java/ru/otus/spring/mongock/changelog/DatabaseChangelog.java
@@ -0,0 +1,30 @@
+package ru.otus.spring.mongock.changelog;
+
+import com.github.cloudyrock.mongock.ChangeLog;
+import com.github.cloudyrock.mongock.ChangeSet;
+import com.mongodb.client.MongoCollection;
+import com.mongodb.client.MongoDatabase;
+import org.bson.Document;
+import ru.otus.spring.domain.Person;
+import ru.otus.spring.repostory.PersonRepository;
+
+@ChangeLog
+public class DatabaseChangelog {
+
+    @ChangeSet(order = "001", id = "dropDb", author = "stvort", runAlways = true)
+    public void dropDb(MongoDatabase db) {
+        db.drop();
+    }
+
+    @ChangeSet(order = "002", id = "insertLermontov", author = "ydvorzhetskiy")
+    public void insertLermontov(MongoDatabase db) {
+        MongoCollection<Document> myCollection = db.getCollection("persons");
+        var doc = new Document().append("name", "Lermontov");
+        myCollection.insertOne(doc);
+    }
+
+    @ChangeSet(order = "003", id = "insertPushkin", author = "stvort")
+    public void insertPushkin(PersonRepository repository) {
+        repository.save(new Person("Pushkin"));
+    }
+}
diff --git a/2023-01/spring-15/spring-data-mongo-class-work/spring-data-mongo-solution/src/main/java/ru/otus/spring/repostory/PersonRepository.java b/2023-01/spring-15/spring-data-mongo-class-work/spring-data-mongo-solution/src/main/java/ru/otus/spring/repostory/PersonRepository.java
new file mode 100644
index 00000000..763a2288
--- /dev/null
+++ b/2023-01/spring-15/spring-data-mongo-class-work/spring-data-mongo-solution/src/main/java/ru/otus/spring/repostory/PersonRepository.java
@@ -0,0 +1,12 @@
+package ru.otus.spring.repostory;
+
+import org.springframework.data.repository.CrudRepository;
+import ru.otus.spring.domain.Person;
+
+import java.util.List;
+
+
+public interface PersonRepository extends CrudRepository<Person, Integer> {
+
+    List<Person> findAll();
+}
diff --git a/2023-01/spring-15/spring-data-mongo-class-work/spring-data-mongo-solution/src/main/resources/application.yml b/2023-01/spring-15/spring-data-mongo-class-work/spring-data-mongo-solution/src/main/resources/application.yml
new file mode 100644
index 00000000..dd00fa36
--- /dev/null
+++ b/2023-01/spring-15/spring-data-mongo-class-work/spring-data-mongo-solution/src/main/resources/application.yml
@@ -0,0 +1,10 @@
+spring:
+  data:
+    mongodb:
+      database: company
+
+mongock:
+  runner-type: "ApplicationRunner" # default
+  #runner-type: "InitializingBean"
+  change-logs-scan-package:
+    - ru.otus.spring.mongock.changelog