develop a proof of concept app and backend that shows you know what you’re doing.

Develop a proof of concept app using Android and iOS, Google Firebase Analytics, Google Dataflow and Datastore. #Phase 1 – Proof of concept In this phase you will develop a proof of concept app and backend that shows you know what you’re doing. Below is a list of the components that need to be built. Client App - send event upstream (iOS and Android) +Develop an iOS and Android app that has one screen, 2 buttons and a message display area. +When a button press occurs in the client app. +Store the state change message in the local database with a timestamp. +Get the oldest state message from the local database. +Send the message to the backend using FirebaseAnalytics.Event. +After sending, delete the message from the local database. +Check if there are more old messages in the local database. +Send the next oldest message to the backend. +[login to view URL] Client App - receive FCM message +When the client app receives an FCM message. +The app displays the message on the main screen in the message display area. +The app sends an ACK response message to the backend using FirebaseAnalytics.Event. Backend Firebase Functions +When Firebase Analytics receive a message from a client app. +Start a Google dataflow that takes the message and writes it into +Google cloud data store. +Use Google dataflow to groupBy the client app, if it is the 10th message from the app, send an FCM message to the client.