Laravel Kafka Pub-Sub Application

This repository demonstrates a Producer-Consumer setup using Apache Kafka. The application consists of two main components:

• A producer that sends messages to a Kafka topic.
• A consumer that reads messages from the Kafka topic.

It utilizes two separate Laravel applications for producer and consumer functionality.

Prerequisites

• Docker
• Docker Compose

Getting Started

1. Clone the Repository:

   git clone https://github.com/thekubera/laravel-pub-sub

2. Start Services:

   Navigate to the project directory and execute the following command to initiate the Docker containers:

   docker compose up

3. Copy and Adjust Environment Files:

   Once the build and startup are successful, copy the .env.example file to .env for both the producer and consumer Laravel applications, and make any necessary adjustments:

   For Producer:

   docker exec <producer-container-name> cp .env.example .env

   For Consumer:

   docker exec <consumer-container-name> cp .env.example .env

   Note: Replace <producer-container-name> and <consumer-container-name> with the actual container names obtained from docker-compose ps.

4. Generate Laravel Application Keys:

   Generate application keys for both the producer and consumer Laravel applications:

   For Producer:

   docker exec <producer-container-name> php artisan key:generate

   For Consumer:

   docker exec <consumer-container-name> php artisan key:generate

5. Access Producer Interface:

   Open your web browser and navigate to http://localhost:8000/producer/ to interact with the message producer.

6. Consume Messages:

   To consume messages from the Kafka topic, run the following command in a separate terminal window:

   docker exec <consumer-container-name> php artisan kafka:consume

Code Exploration

For understanding the producer and consumer logic, explore the following files:

• ProducerController.php (Producer application)
• KafkaConsumerCommand.php (Consumer application)

Additional Notes

• Ensure the Docker containers are running while accessing the producer interface and consuming messages.
• This is a simple illustration of how messages can be published and subscribed to using Kafka. Additional considerations may be necessary depending on your specific requirements.

Contributions

This is a basic example to get you started with a Laravel Kafka Pub-Sub application. As you might see, it currently just produces a simple "Hello World!" message.

Want to enhance it? Feel free to contribute!

We welcome your contributions through issues and pull requests to make this Kafka Pub-Sub application even better!