Data Exchange Using JavaScript Object Notation and REST API

Currently, computer applications can be accessed from various platforms and various devices. One of the very popular platforms is Android. Developing Android-based applications has its own challenges. Besides requiring hardware devices with quite high specifications, they must also learn various programming languages. On the client side the programmer must understand XML for layout and Java for programming logic. On the server side must master PHP and SQL for data processing. To exchange data, the developer must also master the commonly used data formats such as Java Script Object Notation. Android application development for monitoring project progress to exchange data from client to server and vice versa must handle HTTP methods. This study aims to examine the process of exchanging data on Android applications using the Java Script Object Notation and REST API with the Retrofit library. The application development method uses extreme programming.