message broker
A message broker is a software application that facilitates communication between different systems or services by managing the exchange of messages. It acts as an intermediary, receiving messages from a sender and routing them to the appropriate receiver, ensuring that data is transmitted efficiently and reliably. This is particularly useful in distributed systems where various components need to communicate without being directly connected.
By using a message broker, developers can decouple services, allowing them to operate independently and scale more easily. Common examples of message brokers include RabbitMQ, Apache Kafka, and ActiveMQ. These tools help manage message queues, ensuring that messages are delivered even if the receiving service is temporarily unavailable.