Advanced Message Queuing Protocol definition
Advanced Message Queuing Protocol is a publicly available messaging protocol that allows different software apps and components to communicate. Thanks to the AMQP, different software applications can exchange messages efficiently and reliably across various systems and devices.
See also: interface message processor
How AMQP works
- In an AMQP setup, you have producers and consumers. Producers are responsible for creating and sending messages, while consumers receive and process those messages.
- AMQP also has a message broker — an intermediary that receives messages from producers and delivers them to consumers.
- Messages are placed in queues within the broker to ensure that they’re delivered reliably, even if the producer and consumer are not available at the same time.
- Producers send messages to an exchange, responsible for routing messages to the appropriate queue based on predefined rules. Types of exchanges include direct, topic, fanout, and headers.
- Consumers subscribe to specific queues and receive messages from them. They can then process the messages accordingly.
- After a consumer successfully processes a message, it sends an acknowledgment to the broker to let them know the message was successfully handled. If the consumer encounters an issue and can’t process it, it can reject or place it back in the queue.
- AMQP supports various security mechanisms and authentication methods to make sure that only authorized producers and consumers can access the queues and exchanges.