refactor(database): move the initialization of database into tenant middleware

apps/notification/webapi/providers/database.py

@@ -1,44 +1,10 @@
 from webapi.config.site_settings import site_settings
-from beanie import init_beanie
-from motor.motor_asyncio import AsyncIOMotorClient
-from backend.models.models import MessageTemplateDoc, EmailSenderDoc, EmailSendStatusDoc, EmailTrackingDoc, EmailBounceDoc, UsageLogDoc
-import os
 
-# MongoDB config
-MONGODB_URI = os.getenv('MONGODB_URI')
-MONGODB_NAME = os.getenv('MONGODB_NAME')
-
-# create MongoDB client
-client = AsyncIOMotorClient(
-    MONGODB_URI,
-    serverSelectionTimeoutMS=60000,
-    minPoolSize=5,
-    maxPoolSize=20,
-    heartbeatFrequencyMS=20000,
-)
-
-# define all document models
-document_models = [
-    MessageTemplateDoc,
-    EmailSenderDoc,
-    EmailSendStatusDoc,
-    EmailTrackingDoc,
-    EmailBounceDoc,
-    UsageLogDoc
-]
 
 def register(app):
+    """Register database-related configurations"""
     app.debug = site_settings.DEBUG
     app.title = site_settings.NAME
 
-    @app.on_event("startup")
+    # Database initialization is now handled by TenantDBConnectionMiddleware
-    async def start_database():
+    # to support per-request tenant database switching
-        await initiate_database()
-
-
-async def initiate_database():
-    """initiate Beanie database connection"""
-    await init_beanie(
-        database=client[MONGODB_NAME],
-        document_models=document_models
-    )