B4R Tutorial Using Firebase to send notifications to iOS and Android devices

Discussion in 'B4R Tutorials' started by Erel, Sep 29, 2016.

  1. Erel

    Erel Administrator Staff Member Licensed User

    Inspired by this example: https://dzone.com/articles/iot-push-notifications-arduino I've created a similar solution in B4X.

    When the button is clicked, two http requests are sent to Firebase REST api. Any subscribed Android or iOS device will receive the push message. It is a very simple and powerful solution.
    It is simple as you don't need a server and it is powerful as the messages will arrive even when the apps are not running. The solution works over the internet, it is not limited to the local network.

    B4A app: https://www.b4x.com/android/forum/threads/67716/#content
    B4i app: FirebaseNotifications / Push Messages (server not required)

    The B4R code is attached. You need to update the API_KEY and the wifi related settings.

    Attached Files:

  2. BillMeyer

    BillMeyer Member Licensed User

    A Very BIG Thank you. This opens up a whole new world of possibilities.
    Erel likes this.
  3. Cableguy

    Cableguy Expert Licensed User

    is it possible to target individual devices from those subscribed in firebase?
  4. Erel

    Erel Administrator Staff Member Licensed User

    Yes. You can subscribe each device to a unique topic id and then send the message to the specific topic. Note that you also need to update the content length field.
  5. GreenUFO13

    GreenUFO13 Well-Known Member Licensed User

    Very interesting code. Looks like a very easy way to use push notifications. I might try to build a library for the other platforms to enable easy notifications.
    Cableguy likes this.
  6. JMB

    JMB Member Licensed User

    How do you get an API_KEY?

  7. Peter Simpson

    Peter Simpson Well-Known Member Licensed User

    @JMB you need to log into the firebase console right CLICK HERE, create a new project, then go to the project settings (the cog/gear icon) and you will see your API key.
    Last edited: Mar 11, 2017
  8. JMB

    JMB Member Licensed User

    Thanks Peter. I will check that out.

    Do you have to register your devices with the Firebase service?

  9. Erel

    Erel Administrator Staff Member Licensed User

  10. JMB

    JMB Member Licensed User

    Thanks Erel. Will check that out.

    It's been a LONG time, but am loving getting back into this stuff. Amazing set of software.