Exchanges are magic

src/magic_amqp.py

@@ -26,7 +26,8 @@ class MagicAMQP:
     def init_app(self, app: Flask):
         self.app = app
         self.app.config.setdefault('FLASK_PIKA_PARAMS', {})
-        self.app.config.setdefault('EXCHANGE_NAME', None)
+        self.app.config.setdefault('EXCHANGE_NAME_META', None)
+        self.app.config.setdefault('EXCHANGE_NAME_CACHE', None)
 
         self._credentials = pika.PlainCredentials(
             app.config['FLASK_PIKA_PARAMS']['username'],
@@ -45,7 +46,11 @@ class MagicAMQP:
         )
         self._pika_channel = self._pika_connection.channel()
         self._pika_channel.exchange_declare(
-            exchange=self.app.config['EXCHANGE_NAME'],
+            exchange=self.app.config['EXCHANGE_NAME_META'],
+            exchange_type='direct'
+        )
+        self._pika_channel.exchange_declare(
+            exchange=self.app.config['EXCHANGE_NAME_CACHE'],
             exchange_type='direct'
         )
 
@@ -70,7 +75,7 @@ class MagicAMQP:
             if total_time > 1:
                 self.app.logger.warning(f"Loop: Total loop took {total_time:5f} sec")
 
-    def publish(self, payload=None):
+    def _publish(self, exchange: str, payload=None):
         """
         Publish a simple json serialized message to the configured queue.
         If the connection is broken, then this call will block until the connection is restored
@@ -88,7 +93,7 @@ class MagicAMQP:
                 while True:
                     try:
                         self._pika_channel.basic_publish(
-                            exchange=self.app.config['EXCHANGE_NAME'],
+                            exchange=exchange,
                             routing_key='feature',
                             body=json.dumps(payload).encode('UTF-8')
                         )
@@ -119,6 +124,12 @@ class MagicAMQP:
                 if total_time > 0.4:
                     self.app.logger.warning(f"Publish: Total publish took {total_time:5f} sec")
 
+    def publish_cache(self, payload=None):
+        return self._publish(self.app.config['EXCHANGE_NAME_CACHE'], payload)
+
+    def publish_meta(self, payload=None):
+        return self._publish(self.app.config['EXCHANGE_NAME_META'], payload)
+
     def is_healthy(self) -> bool:
         with self._lock:
             if not self._pika_channel: