Cola con delay -> cola dead letter

packages/sim-consumidor-objenious/config/eventBus.config.ts

@@ -20,43 +20,50 @@ export const rmqConnOptions = <RMQConnectionParams>{
 
 export const rabbitmqEventBus = new RabbitMQEventBus({
   connectionParams: rmqConnOptions,
-  buildStructure: buildQueues
+  buildStructure: buildQueues,
+  maxRetry: 5
 })
 
-function buildQueues(channel: Channel) {
-  channel?.assertQueue("sim.objenious")
-    .then(e => {
-      console.log("[o] Creada la cola " + e.queue)
-      channel?.bindQueue("sim.objenious", "sim.exchange", "sim.objenious.*")
-        .then(e => {
-          console.log("[o] Bindeada la cola sim.objenious a sim.exchange ")
-        })
-        .catch(e => {
-          console.error(e)
-        })
-    })
-    .catch(e => {
-      console.error(e)
-    })
+async function buildQueues(channel: Channel) {
+  const QUEUES = {
+    OBJ: "sim.objenious",
+    DLX: "sim.objenious.dlx",
+    DEL: "sim.objenious.delayed"
+  }
 
+  const EXCHANGES = {
+    MAIN: "sim.exchange",
+    DLX: "sim.ex.objenious.dlx",
+    DEL: "sim.ex.objenious.delayed"
+  }
 
-  channel?.assertQueue("sim.objenious.dlx")
-    .then(e => {
-      console.log("[o] Creada la cola " + e.queue)
+  const DELAY = 10 * 1000
+  const BASE_OBENIOUS_KEY = "sim.objenious.#"
+
+  await channel.assertExchange(EXCHANGES.DEL, "topic")
+  await channel.assertExchange(EXCHANGES.DLX, "topic")
+  await channel.assertExchange(EXCHANGES.MAIN, "topic")
+
+  await channel.assertQueue(QUEUES.OBJ)
+  await channel.assertQueue(QUEUES.DLX)
+  await channel.assertQueue(QUEUES.DEL, {
+    durable: true,
+    arguments: {
+      'x-message-ttl': DELAY,
+      'x-dead-letter-exchange': EXCHANGES.MAIN,
+    }
+  })
+
+  // Cola dead-letter 
+  await channel.bindQueue(QUEUES.DLX, EXCHANGES.DLX, "sim.objenious.#")
+  // Cola delay
+  await channel.bindQueue(QUEUES.DEL, EXCHANGES.DEL, BASE_OBENIOUS_KEY)
+  // Cola objenious -> main exchange
+  await channel.bindQueue(QUEUES.OBJ, EXCHANGES.MAIN, BASE_OBENIOUS_KEY)
 
-      channel?.bindQueue("sim.objenious.dlx", "sim.dlx", "sim.objenious.*")
-        .then(e => {
-          console.log("[o] Bindeada la cola sim.objenious.dlx a sim.dlx")
-        })
-        .catch(e => {
-          console.error(e)
-        })
-    })
-    .catch(e => {
-      console.error(e)
-    })
 }
 
+
 export async function startRMQClient() {
   await rabbitmqEventBus.connect()
   return rabbitmqEventBus