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app/communication/mqtt/client.py

@@ -0,0 +1,26 @@
+from __future__ import annotations
+
+from fastapi_mqtt import FastMQTT, MQTTConfig
+
+from app.core.config import settings
+from app.communication.mqtt.topics import SUBSCRIBE_TOPICS
+
+mqtt_config = MQTTConfig(
+    host=settings.MQTT_HOST,
+    port=settings.MQTT_PORT,
+    username=settings.MQTT_USERNAME or None,
+    password=settings.MQTT_PASSWORD or None,
+    keepalive=60,
+)
+
+mqtt = FastMQTT(config=mqtt_config)
+
+
+async def mqtt_startup() -> None:
+    await mqtt.mqtt_startup()
+    for topic in SUBSCRIBE_TOPICS:
+        mqtt.client.subscribe(topic)
+
+
+async def mqtt_shutdown() -> None:
+    await mqtt.mqtt_shutdown()