What messaging systems have you used in your projects?

Projects often use various messaging systems to organize interaction between components or services. Among popular solutions:

• RabbitMQ — a message broker supporting various protocols (AMQP), providing reliable delivery and routing of messages.
• Apache Kafka — a distributed data streaming platform, well-suited for processing large volumes of messages and real-time events.
• Redis Pub/Sub — a simple publish/subscribe system based on Redis, suitable for fast and lightweight messages.
• AWS SQS — a cloud message queue from Amazon, ensuring scalability and reliability.

The choice of system depends on project requirements: reliability, speed, routing complexity, scalability, etc.