My iOS needs to receive a push notification whenever there is a change in Firebase database. Firebase has their own GUI for sending the push notifications to devices. But in my case it has to be automatic and I shouldn't use the GUI of Firebase. I got to know that there should be one custom server for handling this case as Firebase has provided option to make a call for sending push message as mentioned in below link.
How can I send a Firebase Cloud Messaging notification without use the Firebase Console?
So there should be http call from Firebase to notify the custom server for sending push message to devices. I have not found any way to make a http call from Firebse to external servers.
Any help would be thankful.