Cloud Functions Plugin for Flutter

To use this plugin:

1. Using the Firebase Console, add an Android app to your project: Follow the assistant, download the generated google-services.json file and place it inside android/app. Next, modify the android/build.gradle file and the android/app/build.gradle file to add the Google services plugin as described by the Firebase assistant. Ensure that your android/build.gradle file contains the maven.google.com as described here.
2. Using the Firebase Console, add an iOS app to your project: Follow the assistant, download the generated GoogleService-Info.plist file, open ios/Runner.xcworkspace with Xcode, and within Xcode place the file inside ios/Runner. Don't follow the steps named "Add Firebase SDK" and "Add initialization code" in the Firebase assistant.
3. Add cloud_functions as a dependency in your pubspec.yaml file.

import 'package:cloud_functions/cloud_functions.dart';

Getting an instance of the callable function:

final HttpsCallable callable = CloudFunctions.instance.getHttpsCallable(
    functionName: 'YOUR_CALLABLE_FUNCTION_NAME',
);

Calling the function:

dynamic resp = await callable.call();

Calling the function with parameters:

dynamic resp = await callable.call(<String, dynamic>{
    'YOUR_PARAMETER_NAME': 'YOUR_PARAMETER_VALUE',
});

See the example directory for a complete sample app using Cloud Functions for Firebase.