Using the template engine to build web pages

For now, your Play application only handles JSON. To create data, you must supply a JSON payload with your HTTP request, and ensure the presentation of your application resources is only JSON. This can be sufficient if you just want to provide a web service. However, you sometimes also want to expose your resources as HTML pages so that users can browse them from their web browser.

Play includes a template engine, Twirl, that makes it easier to define skeleton HTML pages filled with data from your application and combine document fragments.

The app/views/main.scala.html file contains the HTML template used by the provided controllers.Application.index action. Have a look at it in your code editor. It contains a simple HTML document. The Application.index action renders it using the views.html.main() method (or views.html.main.render() in Java). You might ask how is the app/views/main.scala.html file related to the views.html.main object? The Play...