first commit

backend/app/mongo.py

@@ -0,0 +1,26 @@
+from motor.motor_asyncio import AsyncIOMotorClient, AsyncIOMotorDatabase
+
+from app.config import settings
+
+mongo_client: AsyncIOMotorClient | None = None
+mongo_db: AsyncIOMotorDatabase | None = None
+
+
+async def connect_mongo() -> None:
+    global mongo_client, mongo_db
+    mongo_client = AsyncIOMotorClient(settings.mongodb_url)
+    mongo_db = mongo_client[settings.mongodb_db]
+
+
+async def close_mongo() -> None:
+    global mongo_client, mongo_db
+    if mongo_client:
+        mongo_client.close()
+    mongo_client = None
+    mongo_db = None
+
+
+def get_mongo_db() -> AsyncIOMotorDatabase:
+    if mongo_db is None:
+        raise RuntimeError("MongoDB is not connected")
+    return mongo_db