I'm using onesignal for first time in my project. I have to send notification to specific users (wherever user is logged in either on chrome or android device) on some events like whatsapp sends notification on mobile as well as website too and only if user is logged in. I have successfully sent notification to all users. After some R&D on OneSignal, I come to know that I have to send notifications to specific playerId for this purpose. But here are some my questions/doubts.
If anyone can explain the points and also describe work flow to store playerid (when and how) in my database, it will be appreciated.
Just store playerIds into database with login activity. when they logout just fire a query related to remove playerIds from database.