This application is an example of PWA (Progressive Web Apps). It is a clone of the very popular instagram app. This app can function offline. The user can surf the application when offline, the data the user posts when offline is posted to the server once the device is reconnected to the internet.
The application concentrates on how any web app can be made to function like a native mobile app. At the time of development the browser support for most of the features is limited to only Google Chrome.
To Do: Push Notifications Native Device Features
checkout the demo app here: https://postagram-40ca9.firebaseapp.com