send_message not working after upgrade to latest fcm-django 10.0.12

[quirinhamp]

Error:

Django Version:	4.2.2
ValueError
Exactly one of token, topic or condition must be specified.
/home/ubuntu/comfortid_backend/venv/lib/python3.10/site-packages/firebase_admin/_messaging_encoder.py, line 681, in default
dsm.views.overview
/home/ubuntu/.local/bin/uwsgi
3.10.6

settings.py
from firebase_admin import initialize_app, credentials
cred = credentials.Certificate(cred_path)
initialize_app(cred)

view.py
android_devices = devices.filter(type='android')
obj = )
message = Message(notification=Notification(title=form.cleaned_data['message_title'],
body=form.cleaned_data['message'],
image=None)
,
data=NotificationSerializer(not_obj).data,
topic="DSM"
)

android_devices.send_message(message)

admin

FCM device	Device ID	Name	Type	User	Is active	Creation date
	93bf7f511865531ed9cdb2bd0bf6f3a3960e22052b58390b202486ac		ios	[email protected]		30. Juni 2023 16:10
	37adcc81dcaba724		android	[email protected]		30. Juni 2023 14:04

FCM device

Device ID

Name

Type

User

Is active

Creation date
93bf7f511865bd0bf6f3a3960e22052b58390b202486ac 93bf7f511865531ed9ccf35da90db2bd0bf6f3a3960e22052b58390b202486ac ios [email protected] True 30. Juni 2023 16:10
37adcc81d24 37adcca724 android [email protected] True 30. Juni 2023 14:04

What is wrong? Please help! In the past, no token was required for bulk send_message. The devices are created according to requirements.

[xtrinch]

@quirinhamp Can you confirm none of your device FCM tokens in database are empty/null?

[quirinhamp]

Yes I can, device_id and registration_token are not null
also updated to latest version and I have the same behavior.

[quirinhamp]

The issue is that one can not declare a topic in Message since fcm-django adds token:

in line 679 of _messaging_encoder.py:

target_count = sum([t in result for t in ['token', 'topic', 'condition']]) if target_count != 1: raise ValueError('Exactly one of token, topic or condition must be specified.')

[xtrinch]

Try using send_topic_message for topic messages