Flow

sequenceDiagram
    RabbitMQ->>+Consumer: 10 messages
    Consumer->>+Handler: start handle first mesage
    Handler->>+Bank: withdrow money
    Handler->>+Consumer: ack mesage
    Consumer->>+Handler: start handle second mesage
    Handler->>+Bank: withdrow money
    Handler->>+Consumer: ack mesage
    Consumer->>+Handler: start handle third mesage

    Handler->>+Bank: connection error
    Handler->>+Consumer: no-ack
    Consumer->>+Handler: start handle fourth mesage
    Consumer->>+Consumer: Fatal error
    Consumer-xRabbitMQ: no answer