What is Firebase? Firebase was founded in 2012 as a real-time architecture for syncing data between apps. It was acquired by Google in 2014. Originally, it was a part of Envolve, a real-time chat integration API. Overtime, the developers realized that the system was being …
Firebase doesn’t have an equivalent for a SQL SELECT * FROM table WHERE id IN (1,2,3). The performance increase over retrieving the items separately would be marginal at best, because Firebase already pipelines the requests over a single connection. Another way is denormalizing the database or making …
Firebase will not call your onMessageReceived when your app is in background or killed, and you can’t customise your notification. System generated notification will show. to make firebase library to call your onMessageReived in every cases a) Foreground b) Background c) Killed you must not …