Android configure via json

README.md

@@ -200,10 +200,31 @@ Lastly, due to some dependencies requirements, Firestack supports iOS versions 8
 
 ### Android
 
-There are several ways to setup Firebase on Android. The _easiest_ way is to pass the configuration settings in JavaScript. In that way, there is no setup for the native platform. 
+There are several ways to setup Firebase on Android. The _easiest_ way is to pass the configuration settings in JavaScript. In that way, there is no setup for the native platform.
 
+#### google-services.json setup
 If you prefer to include the default settings in the source of your app, download the `google-services.json` file provided by Firebase in the _Add Firebase to Android_ platform menu in your Firebase configuration console.
 
+Next you'll have to add the google-services gradle plugin in order to parse it.
+
+Add the google-services gradle plugin as a dependency in the *project* level build.gradle
+`android/build.gradle`
+```java
+buildscript {
+  // ...
+  dependencies {
+    // ...
+    classpath 'com.google.gms:google-services:3.0.0'
+  }
+}
+```
+
+In your app build.gradle file, add the gradle plugin at the VERY BOTTOM of the file (below all dependencies)
+`android/app/build.gradle`
+```java
+apply plugin: 'com.google.gms.google-services'
+```
+
 ## Usage
 
 After creating a Firebase project and installing the library, we can use it in our project by importing the library in our JavaScript:

android/src/main/java/io/fullstack/firestack/FirestackModule.java

@@ -66,7 +66,7 @@ public String setKeyOrDefault(
           final String val = params.getString(key);
           Log.d(TAG, "Setting " + key + " from params to: " + val);
           return val;
-        } else if (defaultValue != null && defaultValue != "") {
+        } else if (defaultValue != null && !defaultValue.equals("")) {
           Log.d(TAG, "Setting " + key + " from params to: " + defaultValue);
           return defaultValue;
         } else {

android/src/main/java/io/fullstack/firestack/FirestackStorage.java

@@ -60,14 +60,16 @@ public String getName() {
   }
 
   @ReactMethod
-  public void downloadUrl(final String storageUrl,
+  public void downloadUrl(final String javascriptStorageBucket,
                           final String path,
                           final Callback callback) {
       FirebaseStorage storage = FirebaseStorage.getInstance();
+      String storageBucket = storage.getApp().getOptions().getStorageBucket();
+      String storageUrl = "gs://"+storageBucket;
       StorageReference storageRef = storage.getReferenceFromUrl(storageUrl);
-    StorageReference fileRef = storageRef.child(path);
+      StorageReference fileRef = storageRef.child(path);
 
-      Task<Uri> downloadTask = storageRef.getDownloadUrl();
+      Task<Uri> downloadTask = fileRef.getDownloadUrl();
       downloadTask.addOnSuccessListener(new OnSuccessListener<Uri>() {
         @Override
         public void onSuccess(Uri uri) {