Rabbit MQ - MacKittipat/note-developer GitHub Wiki

Core Concepts

Term	Meaning
Producer	Sends messages
Consumer	Receives messages
Queue	Stores messages
Exchange	Routes messages. It receives messages from producers and pushes them to queues
Binding	Rule linking exchange → queue
Routing Key	Message tag used for routing

Message Flow

Producer
   ↓
Exchange
   ↓
Queue
   ↓
Consumer

Exchange Type

Default Exchange

Direct Exchange

Direct exchange routes messages to queues using exact routing key match. Exchange checks which queues are bound with EXACT same key. Only those queues receive message.

Fanout Exchange

Fanout exchange broadcasts messages to ALL bound queues. It ignores routing keys completely.

Topic Exchange

Topic exchange routes messages using pattern matching on routing keys.