Publish message into rabbitmq on create article

Create Redis and Rabbit in docker-compose

src/main/kotlin/fr/dcproject/event/publisher/Publisher.kt

@@ -0,0 +1,30 @@
+package fr.dcproject.event.publisher
+
+import com.fasterxml.jackson.databind.ObjectMapper
+import com.rabbitmq.client.ConnectionFactory
+import fr.dcproject.config
+import fr.dcproject.event.EntityEvent
+import kotlinx.coroutines.GlobalScope
+import kotlinx.coroutines.Job
+import kotlinx.coroutines.launch
+import org.slf4j.Logger
+import org.slf4j.LoggerFactory
+
+class Publisher(
+    private val mapper: ObjectMapper,
+    private val factory: ConnectionFactory,
+    private val logger: Logger = LoggerFactory.getLogger(Publisher::class.qualifiedName)
+) {
+    fun <T: EntityEvent>publish(it: T): Job {
+        return GlobalScope.launch {
+            factory.newConnection().use { connection -> connection.createChannel().use { channel ->
+                channel.basicPublish(config.exchangeNotificationName, "", null, it.serialize().toByteArray())
+                logger.debug("Publish message ${it.target.id}")
+            } }
+        }
+    }
+
+    private fun EntityEvent.serialize(): String {
+        return mapper.writeValueAsString(this) ?: error("Unable tu serialize message")
+    }
+}