Calling a Cloud Function from Android through Firebase

Question

Situation

I have created a Google Cloud Function through functions.https.onRequest, which is working nicely when I paste its URL in a browser and integ

Answer 1

Since version 12.0.0 you can call cloud function in more simple way

Add following line in your build.gradle

implementation 'com.google.firebase:firebase-functions:19.0.2'

And use following code

FirebaseFunctions.getInstance() // Optional region: .getInstance("europe-west1")
    .getHttpsCallable("myCoolFunction")
    .call(optionalObject)
    .addOnFailureListener {
        Log.wtf("FF", it) 
    }
    .addOnSuccessListener {
        toast(it.data.toString())
    }

You can use it on main thread safely. Callbacks is triggered on main thread as well.

You can read more in official docs: https://firebase.google.com/docs/functions/callable