Sending Notifications in to multiple users FCM
Solution 1
To send FCM to multiple device you use the key "registration_ids" instead of "to"
"registration_ids": ["fcm_token1", "fcm_token2"]
Have a look at this package and see how they implemented it.
Solution 2
Instead of "to":"device_id" you should use "to":"topic" ,
topic is use from group messaging in FCM or GCM
https://developers.google.com/cloud-messaging/topic-messaging
the1.7gpaprogrammer
Updated on June 17, 2022Comments
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the1.7gpaprogrammer about 2 years
I am configuring my mobile applications with firebase cloud messaging. I've finally figured out how to send these annoying to configure notifications. My python code looks like this
url = 'https://fcm.googleapis.com/fcm/send' body = { "data":{ "title":"mytitle", "body":"mybody", "url":"myurl" }, "notification":{ "title":"My web app name", "body":"message", "content_available": "true" }, "to":"device_id_here" } headers = {"Content-Type":"application/json", "Authorization": "key=api_key_here"} requests.post(url, data=json.dumps(body), headers=headers)
I would think that putting this in a for loop and swapping device ids to send thousands of notifications would be an immense strain on the server and a bad programming practice. (Correct me if i'm wrong) now the documentation tells me to create "device groups" https://firebase.google.com/docs/cloud-messaging/notifications which store device_id's to send in bulk....this is annoying and inefficient. As my groups for my web application are constantly changing.
Plain and Simple
How do I send the notification above to an array of device id's that I specify in my python code so that i can make only 1 post to FCM instead of thousands.