Android Question is it possible to send Firebase notifications to a specific user?

[omarruben]

Hi again, is it possible to send a notification to a specific user?

 

[Erel]

Yes but you will need to somehow track the users. You can let each user subscribe to a unique topic or get the Firebase token and send to the token instead of the topic.

 

[omarruben]

is this solution ok?
send the notification text like this:

SERVER SENDS
title = "[45] Amouncement"
body ="Thank you for joining "

* where [45] is the user id

so on the App :

Sub fm_MessageArrived (Message As RemoteMessage)
    Dim user As String = Message.GetData.Get("title") '[45]Welcome
    Dim userid As String = user.SubString2(user.IndexOf("[")+1,user.IndexOf("]"))
    Dim cleantitle As String = user.SubString(user.IndexOf("]")+1)

   if (userid="45") then
    Dim n As Notification
    n.Initialize
    n.Icon = "icon"
    n.SetInfo(cleantitle, Message.GetData.Get("body"), Main)
    n.Notify(1)
  endif

 

[Alexander Stolte]

safer would be the one with the device id without topic.

Since the firebase API key can be read, anyone could register to a specific topic and read the messages.

 

[Erel]

Parsing json without the JSON library is never correct.

Since the firebase API key can be read, anyone could register to a specific topic and read the messages.

Not really. There is no external way to subscribe to topics.