Do you have practical experience working with Kafka system?

Yes, I have practical experience working with Apache Kafka in Node.js projects. I used the kafkajs library to implement message producers and consumers. For example, I created services that send events to Kafka for asynchronous processing and scalable data transfer between microservices.

Here's an example of a simple producer in Node.js using kafkajs:

const { Kafka } = require('kafkajs');

const kafka = new Kafka({
  clientId: 'my-app',
  brokers: ['kafka-broker1:9092', 'kafka-broker2:9092']
});

const producer = kafka.producer();

async function sendMessage() {
  await producer.connect();
  await producer.send({
    topic: 'test-topic',
    messages: [
      { value: 'Hello, Kafka!' }
    ]
  });
  await producer.disconnect();
}

sendMessage().catch(console.error);

This approach allows for efficient processing of large data volumes and building resilient distributed systems.