Android Studio - Get Firebase Token From GetIdToken
Answer : Your second approach is close, you just need to use <GetTokenResult> instead of <UploadTask.TaskSnapshot> as that is for uploading images using Firebase Storage. Try this: user.getIdToken(true).addOnSuccessListener(new OnSuccessListener<GetTokenResult>() { @Override public void onSuccess(GetTokenResult result) { String idToken = result.getToken(); //Do whatever Log.d(TAG, "GetTokenResult result = " + idToken); } });