= Firebase =
 * https://firebase.google.com/
 * https://en.wikipedia.org/wiki/Firebase
Firebase is a platform developed by Google for creating mobile and web applications.

== Cloud messaging ==
 * https://firebase.google.com/products/cloud-messaging
 * https://firebase.google.com/docs/cloud-messaging
 * https://console.firebase.google.com/project/_/notification
 * https://console.firebase.google.com/project/bitarus-sandbox-fcm/notification

Check the server key for cloud messaging settings
 * https://console.firebase.google.com/project/bitarus-sandbox-fcm/settings/cloudmessaging/android:org.allowed.bitarus.ionic.starter

== pyfcm ==
 * https://howto.lintel.in/push-notifications-using-python-via-fcm/
 * pip install pyfcm

{{{#!highlight python
# the fcm client must subscribe a topic that matches the device uuid
from pyfcm import FCMNotification

cloud_messaging_server_key ="AAAA(...)" # missing data for the key
push_service = FCMNotification(api_key=cloud_messaging_server_key, proxy_dict=None)

message_body = "Hello"
data_message = {
    "user" : "Mario",
    "body" : message_body,
    "chatRoom" : "PortugalVSDenmark"
}

device_uuid="8ab6abc19dc54262"

result = push_service.notify_topic_subscribers(topic_name=device_uuid, 
    message_body=message_body, data_message=data_message)
print(result)
}}}

=== single_dev_pyfcm.py  ===
{{{#!highlight python
#send push to target device with registered token getToken()
#python  single_dev_pyfcm.py "Test hello push"
from pyfcm import FCMNotification
import uuid
import sys

dev_token="eBSZS..."
cloud_messaging_server_key ="AAAA0..."
push_service = FCMNotification(api_key=cloud_messaging_server_key, proxy_dict=None)

body = "Hello"

if len(sys.argv)>1:
    body = sys.argv[1]

data_message = {
    "body" : body,
}

res = push_service.notify_single_device(registration_id=dev_token, 
    message_title="Title", 
    message_body=body, data_message=data_message)
print(res)
}}}