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

Yes it's possible :

1. Add this to app/build.gradle file :

   implementation 'com.google.firebase:firebase-functions:16.1.0'

---

2. Initialize the client SDK

   private FirebaseFunctions mFunctions;

   mFunctions = FirebaseFunctions.getInstance();

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3. Call the function

   private Task addMessage(String text) {
   
   Map data = new HashMap<>();
   data.put("text", text);
   data.put("push", true);
   
   return mFunctions
           .getHttpsCallable("addMessage")
           .call(data)
           .continueWith(new Continuation() {
               @Override
               public String then(@NonNull Task task) throws Exception {
                   // This continuation runs on either success or failure, but if the task
                   // has failed then getResult() will throw an Exception which will be
                   // propagated down.
                   String result = (String) task.getResult().getData();
                   return result;
               }
           });
      }
   

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Ref : Calling Firebase cloud functions