EventProducer

Spring Boot starter application that publishes JSON events to RabbitMQ topic exchanges (no stream plugins required). The project uses Spring Boot 4.0.2 with Java 21.

Prerequisites

JDK 21 or newer
Locally running RabbitMQ broker reachable at the host/port set in src/main/resources/application.yml

Useful Commands

./gradlew bootRun — start the application
./gradlew test — run the test suite
./gradlew build — create an executable jar in build/libs

Configuration

RabbitMQ connection + exchange name are defined in application.yml. Override via the exposed environment variables below or your own profile files.
All messages are sent to the configured topic exchange; routing keys come from the request path.

Environment Variable	Default	Description
`RABBITMQ_HOST`	`mit.loc`	Broker hostname
`RABBITMQ_PORT`	`5672`	Broker port
`RABBITMQ_USERNAME`	`producer`	Username for broker auth
`RABBITMQ_PASSWORD`	`producer`	Password for broker auth
`RABBITMQ_EXCHANGE`	`dev.insurance.health.request`	Topic exchange the producer targets
`RABBITMQ_QUEUE`	`dev.insurance.health.request.queue`	Queue bound to the topic exchange
`RABBITMQ_ROUTING_KEY`	`dev.insurance.health.request.route`	Default routing key for `/api/events/messages`

Sending Events

curl --request POST http://localhost:8080/api/events/orders.created \
  --header 'Content-Type: application/json' \
  --data '{
    "eventType": "order-created",
    "payload": {
      "orderId": "12345",
      "total": 42.50
    }
  }'

Sending Simple Messages

curl --request POST http://localhost:8080/api/events/messages \
  --header 'Content-Type: application/json' \
  --data '{
    "message": "hello topic queue"
  }'

API Docs

OpenAPI JSON: http://localhost:8080/api-docs
Swagger UI: http://localhost:8080/swagger-ui

If you ever remove the Gradle wrapper, run gradle wrapper once (requires Gradle locally) so that subsequent builds can use ./gradlew.