What is it?

Tatap is a android chat app that lets you make pre-defined messages to your friends, and send them with two taps. This app can be useful in a situation where you are in hurry or need to send quick messages. The features it provides are :

Pre-defined messages so that you can send them as quickly as possible.
You can send messages with Tatap widgets on your phone screen without opening the app.
You can send or receive location message that pin points where you or your friend is.

What was required?

The project required to have its backend server and mobile application. The backend server was implemented using Node.js, and android app was developed. All communication between the mobile app and the server was done with json, and each end-point in the server was well tested.

Backend (Node.js)

The server was setup on AWS.
Nginx for reverse-proxy.

Mobile (Android)

Retrofit2 was used for REST API communication.
Google map SDK for location message.
Google analytics for app usages.