https://github.com/julian-eggers/spring-rabbitmq-dead-letter-queue-example

Spring RabbitMQ Dead Letter Queue (DLQ) Example
https://github.com/julian-eggers/spring-rabbitmq-dead-letter-queue-example

dead-letter-queue dlq java rabbitmq spring spring-boot

Last synced: 11 days ago
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Spring RabbitMQ Dead Letter Queue (DLQ) Example

• Host: GitHub
• URL: https://github.com/julian-eggers/spring-rabbitmq-dead-letter-queue-example
• Owner: julian-eggers
• License: mit
• Created: 2017-01-03T22:45:06.000Z (almost 8 years ago)
• Default Branch: master
• Last Pushed: 2019-01-12T10:58:22.000Z (almost 6 years ago)
• Last Synced: 2024-10-10T05:37:11.273Z (28 days ago)
• Topics: dead-letter-queue, dlq, java, rabbitmq, spring, spring-boot
• Language: Java
• Homepage:
• Size: 20.5 KB
• Stars: 8
• Watchers: 3
• Forks: 3
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
RabbitMQ Dead Letter Queue Example with Spring

==============================================

## Concept

- Every queue has its dead letter queue

- Dead letter messages are routed directly to the dead letter queue, not via bindings

- Dead letter queues are [lazy](https://www.rabbitmq.com/lazy-queues.html) to save resources

This is different to the [rabbitmq-concept](https://www.rabbitmq.com/dlx.html) which recommends to use a separate exchange to route the dead letter messages.

## Queue Properties

### Queue

- x-dead-letter-exchange=

- x-dead-letter-routing-key=DLQ-Name

### Dead letter queue

- x-queue-mode=lazy

## Docker Example

Run the following command to start a container which creates example-queues and sends messages to them.

It tries to connect to a rabbitmq-server on localhost with username "guest" and password "guest".

```

docker run \

-d \

--name=spring-rabbitmq-dead-letter-queue-example \

-p 8080:8080 \

jeggers/spring-rabbitmq-dead-letter-queue-example:latest \

--spring.rabbitmq.addresses=localhost \

--spring.rabbitmq.username=guest \

--spring.rabbitmq.password=guest

```

### Endpoints to check the result

- http://localhost:8080/actuator/prometheus

- http://localhost:8080/actuator/health

## Build & Release

### Build

```

mvn clean package dockerfile:build

```

### Release

```

mvn clean package dockerfile:build dockerfile:tag@tag-latest dockerfile:tag@tag-version dockerfile:push@push-latest dockerfile:push@push-version github-release:release

```