Just need to know what is the best way to do push notifications using ionic4-5 project (angular4-5, typescript ) for ios and android devices and if there a link that include all the informations i need to complete the scenario, and what the options (i want to take in consideration the number of users , too much like 20 thousand and more)
thanks in advance.
I think one signal is the best because ionic also provides plugin for it and I also used it recently.
You can see this for further help:
https://ionicframework.com/docs/native/onesignal/
https://medium.com/appseed-io/how-to-integrate-onesignal-push-notifications-into-an-ionic-3-application-eb2fdc3e6176