![image.png](https://prod-files-secure.s3.us-west-2.amazonaws.com/c26cbd8c-4ae9-4ab6-b595-99bb653f9d83/57d33b73-fa4b-4f6c-b25a-f7c2d827968b/image.png)

Q- First i have visited Spring Initilazer : and create this 

### **Initialize a Spring Boot Project**

You can use Spring Initializr or your IDE to create a new project.

- **Project**: Maven Project
- **Language**: Java
- **Spring Boot**: 2.3.9 (as per the example)
- **Project Metadata**:
    - Group: **`com.amir`**
    - Artifact: **`kafka-pub-sub`**
    - Name: **`kafka-pub-sub`**
    - Package Name: **`com.amir`**
    - Packaging: Jar
    - Java: 8 or higher
- **Dependencies**:
    - Spring Web
    - Spring for Apache Kafka
    - Lombok (optional)

Alternatively, you can manually create the project using your IDE.

Q- next let’s step up the project folder struture here 

### **Directory Structure**

Align your project structure as follows for clarity:

```
reactive-kafka-consumer-producer/
├── src/
│   ├── main/
│   │   ├── java/com/example/reactivekafkaconsumerandproducer/
│   │   │   ├── config/
│   │   │   ├── controller/
│   │   │   ├── dto/
│   │   │   ├── service/
│   │   │   ├── ReactiveKafkaConsumerProducerApplication.java
│   │   └── resources/
│   │       └── application.properties
│   └── test/
│       └── java/com/example/reactivekafkaconsumerandproducer/
└── pom.xml

```

### **Explanation**

- **config/**: Configuration classes for Kafka.
- **controller/**: REST controllers.
- **dto/**: Data Transfer Objects.
- **service/**: Services for producing and consuming messages.
- **application.properties**: Configuration properties.
- **tests/**: Integration and unit tests.

## **Define Data Transfer Objects (DTOs)**

Create DTOs representing the data you intend to send and consume via Kafka.

### **FakeProducerDTO.java**

```java
package com.example.reactivekafkaconsumerandproducer.dto;

import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;

@Data
@NoArgsConstructor
@AllArgsConstructor
public class FakeProducerDTO {
    private String id;
    private String message;
}

```

### **FakeConsumerDTO.java**

```java
package com.example.reactivekafkaconsumerandproducer.dto;

import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;

@Data
@NoArgsConstructor
@AllArgsConstructor
public class FakeConsumerDTO {
    private String id;
    private String content;
}

```

Q- next given this pom.xml file 

```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>3.3.5</version>
		<relativePath/> <!-- lookup parent from repository -->
	</parent>
	<groupId>com.amir</groupId>
	<artifactId>kafka-SpringBoot</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<name>kafka-SpringBoot</name>
	<description>Tutor to integrate kafka with Spring Boot </description>
	<url/>
	<licenses>
		<license/>
	</licenses>
	<developers>
		<developer/>
	</developers>
	<scm>
		<connection/>
		<developerConnection/>
		<tag/>
		<url/>
	</scm>
	<properties>
		<java.version>17</java.version>
		<reactor.kafka.version>1.3.21</reactor.kafka.version>
	</properties>
	<dependencies>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-web</artifactId>
		</dependency>
		<dependency>
			<groupId>org.springframework.kafka</groupId>
			<artifactId>spring-kafka</artifactId>
		</dependency>

		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-devtools</artifactId>
			<scope>runtime</scope>
			<optional>true</optional>
		</dependency>
		<dependency>
			<groupId>org.projectlombok</groupId>
			<artifactId>lombok</artifactId>
			<optional>true</optional>
		</dependency>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-test</artifactId>
			<scope>test</scope>
		</dependency>
		<dependency>
			<groupId>org.springframework.kafka</groupId>
			<artifactId>spring-kafka-test</artifactId>
			<scope>test</scope>
		</dependency>
		 <!-- Reactor Kafka -->
        <dependency>
            <groupId>io.projectreactor.kafka</groupId>
            <artifactId>reactor-kafka</artifactId>
            <version>${reactor.kafka.version}</version>
        </dependency>

        <!-- JSON Serialization -->
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-databind</artifactId>
        </dependency>
	</dependencies>

	<build>
		<plugins>
			<plugin>
				<groupId>org.springframework.boot</groupId>
				<artifactId>spring-boot-maven-plugin</artifactId>
				<configuration>
					<excludes>
						<exclude>
							<groupId>org.projectlombok</groupId>
							<artifactId>lombok</artifactId>
						</exclude>
					</excludes>
				</configuration>
			</plugin>
		</plugins>
	</build>

</project>

```

Q- we create the package called “Config” 

and this is the script

```java
package com.amir.kafka_SpringBoot.Config;

import org.apache.kafka.clients.consumer.ConsumerConfig;
import org.apache.kafka.common.serialization.StringDeserializer;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.autoconfigure.kafka.KafkaProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.kafka.core.reactive.ReactiveKafkaConsumerTemplate;
import org.springframework.kafka.support.serializer.JsonDeserializer;

import com.amir.kafka_SpringBoot.dto.FakeConsumerDTO;

import reactor.kafka.receiver.ReceiverOptions;

import java.util.Collections;
import java.util.HashMap;
import java.util.Map;

@Configuration
public class ReactiveKafkaConsumerConfig {

    @Value("${FAKE_CONSUMER_DTO_TOPIC}")
    private String topic;

    @Bean
    public ReceiverOptions<String, FakeConsumerDTO> kafkaReceiverOptions(KafkaProperties kafkaProperties) {
        Map<String, Object> props = new HashMap<>(kafkaProperties.buildConsumerProperties());

        props.put(ConsumerConfig.KEY_DESERIALIZER_CLASS_CONFIG, StringDeserializer.class);
        props.put(ConsumerConfig.VALUE_DESERIALIZER_CLASS_CONFIG, JsonDeserializer.class);
        props.put(JsonDeserializer.TRUSTED_PACKAGES, "*");
        props.put(JsonDeserializer.VALUE_DEFAULT_TYPE, 
                 "com.amir.kafka_SpringBoot.dto.FakeConsumerDTO");
        props.put(JsonDeserializer.USE_TYPE_INFO_HEADERS, false);

        ReceiverOptions<String, FakeConsumerDTO> basicReceiverOptions = ReceiverOptions.create(props);
        return basicReceiverOptions.subscription(Collections.singletonList(topic));
    }

    @Bean
    public ReactiveKafkaConsumerTemplate<String, FakeConsumerDTO> reactiveKafkaConsumerTemplate(
            ReceiverOptions<String, FakeConsumerDTO> kafkaReceiverOptions) {
        return new ReactiveKafkaConsumerTemplate<>(kafkaReceiverOptions);
    }
}
```

Q- next i have create the Configuration  For the Producer Part oki like this 

```java
package com.amir.kafka_SpringBoot.Config;

import org.apache.kafka.clients.producer.ProducerConfig;
import org.apache.kafka.common.serialization.StringSerializer;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.autoconfigure.kafka.KafkaProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.kafka.core.reactive.ReactiveKafkaProducerTemplate;
import org.springframework.kafka.support.serializer.JsonSerializer;
import reactor.kafka.sender.SenderOptions;

import java.util.HashMap;
import java.util.Map;

import com.amir.kafka_SpringBoot.dto.FakeProducerDTO;

@Configuration
public class ReactiveKafkaProducerConfig {
    
    @Value("${FAKE_PRODUCER_DTO_TOPIC}")
    private String topic;

    @Bean
    public ReactiveKafkaProducerTemplate<String, FakeProducerDTO> reactiveKafkaProducerTemplate(
            KafkaProperties properties) {
        Map<String, Object> props = new HashMap<>(properties.buildProducerProperties());
        
        props.put(ProducerConfig.KEY_SERIALIZER_CLASS_CONFIG, StringSerializer.class);
        props.put(ProducerConfig.VALUE_SERIALIZER_CLASS_CONFIG, JsonSerializer.class);

        SenderOptions<String, FakeProducerDTO> senderOptions = SenderOptions.create(props);
        return new ReactiveKafkaProducerTemplate<>(senderOptions);
    }
}
```

Q- and finally for this part is the [application.properties](http://application.properties) 

```
spring.application.name=kafka-SpringBoot
# Kafka Broker Address
spring.kafka.bootstrap-servers=localhost:9092

# Producer Configuration
spring.kafka.producer.key-serializer=org.apache.kafka.common.serialization.StringSerializer
spring.kafka.producer.value-serializer=org.springframework.kafka.support.serializer.JsonSerializer

# Consumer Configuration
spring.kafka.consumer.group-id=reactivekafkaconsumerandproducer
spring.kafka.consumer.auto-offset-reset=earliest
spring.kafka.consumer.key-deserializer=org.apache.kafka.common.serialization.StringDeserializer
spring.kafka.consumer.value-deserializer=org.springframework.kafka.support.serializer.JsonDeserializer

# JSON Deserializer Configuration
spring.kafka.properties.spring.json.trusted.packages=*
spring.kafka.consumer.properties.spring.json.use.type.headers=false
spring.kafka.consumer.properties.spring.json.value.default.type=com.example.reactivekafkaconsumerandproducer.dto.FakeConsumerDTO

# Kafka Topics
FAKE_PRODUCER_DTO_TOPIC=fake_producer_dto_topic
FAKE_CONSUMER_DTO_TOPIC=fake_consumer_dto_topic

```

Q- now we need to fix some errors like this 

The method buildConsumerProperties() from the type KafkaProperties has been deprecated since version 3.2.0 and marked for removal

and this 

The method buildProducerProperties() from the type KafkaProperties has been deprecated since version 3.2.0 and marked for removal

Q- how to fix it 

Q- this is the answer of Gemini 

The buildConsumerProperties() and buildProducerProperties() methods were deprecated because Spring Boot now favors using dedicated ConsumerFactory and ProducerFactory beans for more flexibility and control.  Here's how to fix your configuration classes:

      `package com.amir.kafka_SpringBoot.Config;

import org.apache.kafka.clients.consumer.ConsumerConfig;
import org.apache.kafka.clients.producer.ProducerConfig;
import org.apache.kafka.common.serialization.StringDeserializer;
import org.apache.kafka.common.serialization.StringSerializer;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.autoconfigure.kafka.KafkaProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.kafka.core.reactive.ReactiveKafkaConsumerTemplate;
import org.springframework.kafka.core.reactive.ReactiveKafkaProducerTemplate;
import org.springframework.kafka.support.serializer.JsonDeserializer;
import org.springframework.kafka.support.serializer.JsonSerializer;
import reactor.kafka.receiver.ReceiverOptions;
import reactor.kafka.sender.SenderOptions;

import com.amir.kafka_SpringBoot.dto.FakeConsumerDTO;
import com.amir.kafka_SpringBoot.dto.FakeProducerDTO;

import java.util.Collections;
import java.util.HashMap;
import java.util.Map;

@Configuration
public class ReactiveKafkaConfig { // Combined config

    @Value("${FAKE_PRODUCER_DTO_TOPIC}")
    private String producerTopic;

    @Value("${FAKE_CONSUMER_DTO_TOPIC}")
    private String consumerTopic;

    @Bean
    public ReactiveKafkaConsumerTemplate<String, FakeConsumerDTO> reactiveKafkaConsumerTemplate(
            KafkaProperties kafkaProperties) {

        Map<String, Object> consumerProps = kafkaProperties.buildConsumerProperties(); // Base properties

        // Add/override specific properties
        consumerProps.put(ConsumerConfig.KEY_DESERIALIZER_CLASS_CONFIG, StringDeserializer.class);
        consumerProps.put(ConsumerConfig.VALUE_DESERIALIZER_CLASS_CONFIG, JsonDeserializer.class);
        consumerProps.put(JsonDeserializer.TRUSTED_PACKAGES, "*");
        consumerProps.put(JsonDeserializer.VALUE_DEFAULT_TYPE, FakeConsumerDTO.class); // Use class directly
        consumerProps.put(JsonDeserializer.USE_TYPE_INFO_HEADERS, false);

        ReceiverOptions<String, FakeConsumerDTO> receiverOptions = ReceiverOptions.create(consumerProps)
                .subscription(Collections.singletonList(consumerTopic));

        return new ReactiveKafkaConsumerTemplate<>(receiverOptions);
    }

    @Bean
    public ReactiveKafkaProducerTemplate<String, FakeProducerDTO> reactiveKafkaProducerTemplate(
            KafkaProperties properties) {
        Map<String, Object> producerProps = properties.buildProducerProperties();

        producerProps.put(ProducerConfig.KEY_SERIALIZER_CLASS_CONFIG, StringSerializer.class);
        producerProps.put(ProducerConfig.VALUE_SERIALIZER_CLASS_CONFIG, JsonSerializer.class);

        SenderOptions<String, FakeProducerDTO> senderOptions = SenderOptions.create(producerProps);

        return new ReactiveKafkaProducerTemplate<>(senderOptions);
    }
}`

content_copy  Use code [with caution](https://support.google.com/legal/answer/13505487).Java

**Key Changes and Explanations:**

1. **Combined Configuration:** It's generally cleaner to keep related Kafka configurations (consumer and producer) in a single class. I've renamed the class to ReactiveKafkaConfig.
2. **Direct Class Reference:** Instead of using a string for JsonDeserializer.VALUE_DEFAULT_TYPE, use the FakeConsumerDTO.class directly. This is type-safe and avoids potential errors.
3. **Clearer Property Names:** I've made the topic names in the @Value annotations more descriptive ( producerTopic, consumerTopic).
4. **Simplified Property Handling:** You don't need to create a completely new HashMap. Use kafkaProperties.buildConsumerProperties() and kafkaProperties.buildProducerProperties() to get the base properties and then add or override specific settings as needed. This makes your configuration more maintainable.

**application.properties (No changes required for this fix but good practice):**

      `spring.application.name=kafka-SpringBoot
spring.kafka.bootstrap-servers=localhost:9092

# You can remove the explicitly set serializer/deserializer properties here 
# as they are now being set in the Java config, keeping things more centralized.
# Leaving them won't cause harm but can lead to confusion if you modify them 
# in only one place.  For better maintainability, remove them:

#spring.kafka.producer.key-serializer=...  (REMOVE)
#spring.kafka.producer.value-serializer=... (REMOVE)
#spring.kafka.consumer.key-deserializer=... (REMOVE)
#spring.kafka.consumer.value-deserializer=... (REMOVE)

spring.kafka.consumer.group-id=reactivekafkaconsumerandproducer
spring.kafka.consumer.auto-offset-reset=earliest

# It's recommended to keep the trusted packages and JSON type handling in 
# the Java config for consistency. You can REMOVE these from application.properties:
#spring.kafka.properties.spring.json.trusted.packages=* (REMOVE)
#spring.kafka.consumer.properties.spring.json.use.type.headers=false (REMOVE)
#spring.kafka.consumer.properties.spring.json.value.default.type=... (REMOVE)

FAKE_PRODUCER_DTO_TOPIC=fake_producer_dto_topic
FAKE_CONSUMER_DTO_TOPIC=fake_consumer_dto_topic`

content_copy  Use code [with caution](https://support.google.com/legal/answer/13505487).Properties

By making these changes, you're using the recommended approach for Kafka configuration in Spring Boot 3 and making your code more robust and maintainable.

Q- did this is correct ? 

Yes, the approach suggested by Gemini is a **good step** toward addressing the deprecation warnings related to `buildConsumerProperties()` and `buildProducerProperties()`. However, to **fully eliminate** the usage of these deprecated methods and adhere to the recommended practices in Spring Boot 3.x and Spring Kafka 3.3.x, further adjustments are necessary.

Here's a comprehensive guide to updating your configuration:

---

### **1. Understanding the Deprecation**

The methods `buildConsumerProperties()` and `buildProducerProperties()` in `KafkaProperties` have been deprecated since Spring Kafka **version 3.2.0**. The deprecation encourages developers to use dedicated **ConsumerFactory** and **ProducerFactory** beans for better flexibility and control.

---

### **2. Refactoring the Configuration**

Instead of using the deprecated methods, you should define separate `ConsumerFactory` and `ProducerFactory` beans. This approach not only resolves the warnings but also provides a more modular and maintainable configuration.

### **a. Create Separate Configuration Classes**

**i. ReactiveKafkaConsumerConfig.java**

`package com.amir.kafka_SpringBoot.Config;

import com.amir.kafka_SpringBoot.dto.FakeConsumerDTO;
import org.apache.kafka.clients.consumer.ConsumerConfig;
import org.apache.kafka.common.serialization.StringDeserializer;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.autoconfigure.kafka.KafkaProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.kafka.support.serializer.JsonDeserializer;
import reactor.kafka.receiver.ReceiverOptions;
import org.springframework.kafka.core.reactive.ReactiveKafkaConsumerTemplate;

import java.util.Collections;
import java.util.HashMap;
import java.util.Map;

@Configuration
public class ReactiveKafkaConsumerConfig {

    @Value("${FAKE_CONSUMER_DTO_TOPIC}")
    private String consumerTopic;

    @Bean
    public ReceiverOptions<String, FakeConsumerDTO> receiverOptions(KafkaProperties kafkaProperties) {
        Map<String, Object> props = new HashMap<>();
        
        // Basic Consumer Configurations
        props.put(ConsumerConfig.BOOTSTRAP_SERVERS_CONFIG, kafkaProperties.getBootstrapServers());
        props.put(ConsumerConfig.GROUP_ID_CONFIG, kafkaProperties.getConsumer().getGroupId());
        props.put(ConsumerConfig.AUTO_OFFSET_RESET_CONFIG, kafkaProperties.getConsumer().getAutoOffsetReset());

        // Deserializer Configurations
        props.put(ConsumerConfig.KEY_DESERIALIZER_CLASS_CONFIG, StringDeserializer.class);
        props.put(ConsumerConfig.VALUE_DESERIALIZER_CLASS_CONFIG, JsonDeserializer.class);
        props.put(JsonDeserializer.TRUSTED_PACKAGES, "*");
        props.put(JsonDeserializer.VALUE_DEFAULT_TYPE, FakeConsumerDTO.class);
        props.put(JsonDeserializer.USE_TYPE_INFO_HEADERS, false);

        ReceiverOptions<String, FakeConsumerDTO> receiverOptions = ReceiverOptions.create(props);
        return receiverOptions.subscription(Collections.singletonList(consumerTopic));
    }

    @Bean
    public ReactiveKafkaConsumerTemplate<String, FakeConsumerDTO> reactiveKafkaConsumerTemplate(
            ReceiverOptions<String, FakeConsumerDTO> receiverOptions) {
        return new ReactiveKafkaConsumerTemplate<>(receiverOptions);
    }
}`

**ii. ReactiveKafkaProducerConfig.java**

`package com.amir.kafka_SpringBoot.Config;

import com.amir.kafka_SpringBoot.dto.FakeProducerDTO;
import org.apache.kafka.clients.producer.ProducerConfig;
import org.apache.kafka.common.serialization.StringSerializer;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.autoconfigure.kafka.KafkaProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.kafka.support.serializer.JsonSerializer;
import reactor.kafka.sender.SenderOptions;
import org.springframework.kafka.core.reactive.ReactiveKafkaProducerTemplate;

import java.util.HashMap;
import java.util.Map;

@Configuration
public class ReactiveKafkaProducerConfig {

    @Value("${FAKE_PRODUCER_DTO_TOPIC}")
    private String producerTopic;

    @Bean
    public SenderOptions<String, FakeProducerDTO> senderOptions(KafkaProperties kafkaProperties) {
        Map<String, Object> props = new HashMap<>();
        
        // Basic Producer Configurations
        props.put(ProducerConfig.BOOTSTRAP_SERVERS_CONFIG, kafkaProperties.getBootstrapServers());

        // Serializer Configurations
        props.put(ProducerConfig.KEY_SERIALIZER_CLASS_CONFIG, StringSerializer.class);
        props.put(ProducerConfig.VALUE_SERIALIZER_CLASS_CONFIG, JsonSerializer.class);

        return SenderOptions.create(props);
    }

    @Bean
    public ReactiveKafkaProducerTemplate<String, FakeProducerDTO> reactiveKafkaProducerTemplate(
            SenderOptions<String, FakeProducerDTO> senderOptions) {
        return new ReactiveKafkaProducerTemplate<>(senderOptions);
    }
}`

**Key Changes:**

1. **Separate Classes:** Keeping `ReactiveKafkaConsumerConfig` and `ReactiveKafkaProducerConfig` separate improves clarity and separation of concerns.
2. **Manual Property Configuration:** Instead of using `buildConsumerProperties()` and `buildProducerProperties()`, properties are manually mapped. This ensures no deprecated methods are used.
3. **Direct Class References:** Using `FakeConsumerDTO.class` directly in `VALUE_DEFAULT_TYPE` enhances type safety.

### **b. Update `application.properties`**

Since serializer/deserializer configurations are now handled in the Java configuration classes, you should **remove** those properties from `application.properties` to avoid redundancy and potential conflicts.

`spring.application.name=kafka-SpringBoot

# Kafka Broker Address
spring.kafka.bootstrap-servers=localhost:9092

# Producer Configuration - REMOVE THESE
# spring.kafka.producer.key-serializer=org.apache.kafka.common.serialization.StringSerializer
# spring.kafka.producer.value-serializer=org.springframework.kafka.support.serializer.JsonSerializer

# Consumer Configuration
spring.kafka.consumer.group-id=reactivekafkaconsumerandproducer
spring.kafka.consumer.auto-offset-reset=earliest

# JSON Deserializer Configuration - REMOVE THESE
# spring.kafka.properties.spring.json.trusted.packages=*
# spring.kafka.consumer.properties.spring.json.use.type.headers=false
# spring.kafka.consumer.properties.spring.json.value.default.type=com.example.reactivekafkaconsumerandproducer.dto.FakeConsumerDTO

# Kafka Topics
FAKE_PRODUCER_DTO_TOPIC=fake_producer_dto_topic
FAKE_CONSUMER_DTO_TOPIC=fake_consumer_dto_topic`

---

### **3. Additional Recommendations**

- **Consistent Package Naming:** Ensure that your package naming is consistent across your project. For example, in your `application.properties`, the `FakeConsumerDTO` belongs to `com.example.reactivekafkaconsumerandproducer.dto`, but in your configuration classes, it's `com.amir.kafka_SpringBoot.dto`. Align these to avoid `ClassNotFoundException` or related issues.
- **Property Injection:** Consider using `@ConfigurationProperties` for more structured and type-safe configuration, especially as your configurations grow more complex.
- **Error Handling:** Implement robust error handling in your consumer and producer to handle scenarios like serialization errors, broker downtimes, etc.

---

### **4. Final Thoughts**

By **separating** the consumer and producer configurations and **manually mapping** the necessary properties, you adhere to the latest Spring Kafka practices, eliminating deprecation warnings and enhancing the maintainability of your project. This structured approach ensures that your application remains compatible with future updates and provides greater flexibility in managing Kafka configurations.

If you encounter any further issues or have additional questions, feel free to ask!

Q- next so we need to implement i refacro what you done so far 

Q- just now give me how to implement the service layer with 

—> service Interface first 

—> and service implementation later