title: Accessing Java API in JAR file using Ionic 4
body: <p>I am working on mobile app (Android) using Ionic 4. I was given a JAR file that supposedly contains the API that sends out some commands via tablet's USB port. The API in the JAR file is written in Java and Ionic project is in Angular, I have no idea how to call the Java API in typescript environment. </p>
  
  <p>Is that even possible? Is that how the ionic native camera, barcode scanner libraries are developed?</p>