fix: fcm HTTP -> HTTP v1으로 버전 변경

backend/fastapi/app/fcm_notification.py

@@ -1,18 +1,34 @@
-from pyfcm import FCMNotification
+import firebase_admin
+from firebase_admin import credentials
+from firebase_admin import messaging
+
 from .config import Config
 
-push_service = FCMNotification(Config.fcm_server_key)
+cred_path = Config.cred_path
+cred = credentials.Certificate(cred_path)
+firebase_admin.initialize_app(cred)
+
 
 
 async def send_push_notification(token, title, body, data):
 
-    result = push_service.notify_single_device(
+    '''result = push_service.notify_single_device(
         registration_id=token,
         message_title=title,
         message_body=body,
         data_message=data
+    )'''
+
+    message = messaging.Message(
+        notification=messaging.Notification(
+            title=title,
+            body=body
+        ),
+        data=data,
+        token=token
     )
-    print("[INFO] push notification sent")
 
-    return result
+    response = messaging.send(message)
+
+    print('Successfully sent message:', response)