targeting "following" \ "followers" with push notifications.

Android
1

Hi dear Backendlesses!
how do I send a push notification to the people who follow the user ?

each user has a “one to many” property with the emails of the followers. I need to send the push to them. but I have no clue how to do it with the logic of sending and receiving the push notifications in Backendless.
I’ve registered each user to a channel named like own email:

Messaging.DEVICE_ID = user.getEmail();
Backendless.Messaging.registerDevice(gcmSenderID, user.getEmail() ,new AsyncCallback<Void>() {and I need to somehow send the push to the list of people following the user…
I’m sure that it’s now a good practice to do a ‘for’ loop sending to each one by mail address.
please help.
Gil.

2

help?

3

Is your question how to send push notification to specific recipients?

4

Hi Mark,

My question is how to send push notifications to all the users in a “one to many” relations property.

thank you.

5

Hi Gil,

You need to know deviceId for each user. That information must be stored somewhere in your application (possible in a data table).

Regards,
Mark

6

Hi Mark,

I will divide the question into two parts:

  1. what is the way in Backendless to send a push notification based on a "one to many’ property ? something like this:
    Backendless.Messaging.publish(user.getproperty(“Followers”), user.getProperty(“moodwhy”), new AsyncCallback<MessageStatus>() {

  2. what if the user uses the app on both his tablet and phone … ? the only common thing will be the user ID, not the device ID. can’t we register the app and not the device ?

thanks.

7

  1. to send a push notification to a specific device, you need to use the “singleCast” option in the DeliveryOptions class.

  2. If a user uses table and phone, then each device will have its own deviceId and you can send push notification to both.

Regards,
Mark