21st Lesson: How to send push notification from Your Web server using Firebase and PHP
From this tutorial you can learn, how to integrate the Firebase push notifications into your webserver to send messages to the user devices about subscribed topics or to single devices.
The tutorial shows the steps needed to authenticate the webserver at the Google services and get the token for the message sending and finally setup a basic message content with a title and a body of the message.
Getting from the Firebase console to the Google Cloud Console.
Generating a key for the authentication.
Setting up the token request message on the website, using the key file.
Setting up the message with the received token.
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