for the docker

rmq_helper/__init__.py

@@ -15,18 +15,23 @@ class RabbitMQ:
 
     def init_app(self, app: Flask):
         self.host = app.config.get('RABBITMQ_HOST', 'localhost')
-        self.connection = pika.BlockingConnection(
-            pika.ConnectionParameters(host=self.host))
-        self.channel = self.connection.channel()
+
+    def _ensure_connection(self):
+        if self.channel is None:
+            self.connection = pika.BlockingConnection(
+                pika.ConnectionParameters(host=self.host))
+            self.channel = self.connection.channel()
 
     def ensure_queue_exists(self, queue_name: str):
         """Ensures the queue exists on the default exchange
 
         :param queue_name: the name of the queue
         """
+        self._ensure_connection()
         self.channel.queue_declare(queue=queue_name, durable=True)
 
     def queue_publish(self, queue_name: str, message):
+        self._ensure_connection()
         self.ensure_queue_exists(queue_name)
 
         body = json.dumps(message)
@@ -38,6 +43,7 @@ class RabbitMQ:
 
         :param name: the name of the exchange
         """
+        self._ensure_connection()
         self.channel.exchange_declare(exchange=name, exchange_type='topic', durable=True)
 
     def exchange_publish(self, exchange_name: str, topic: str, message):
@@ -47,6 +53,7 @@ class RabbitMQ:
         :param topic: the topic to publish to
         :param message: the message to publish (will be turned into a json)
         """
+        self._ensure_connection()
         self.ensure_exchange_exists(exchange_name)
 
         body = json.dumps(message)