There are two ways of enabling SSL for our application. We can either serve an HTTPS application by the providing the required configuration for it on start, or by proxying the requests through an SSL-enabled web server. In this section, we will see how the first option can be used and the latter will be covered in the next section.

We can choose to run both the HTTP and HTTPS versions or just opt for one of them using the http.port and https.port settings. By default, HTTPS is disabled and we can enable it by specifying https.port as follows:

#setting https port to 1234
[PlayScala] $ start -Dhttps.port=1234

#disabling http port and setting https port to 1234
[PlayScala] $ start -Dhttp.port=disabled -Dhttps.port=1234

Play generates self-signed certificates if we do not provide them, and starts the application with SSL enabled in it. However, these certificates are unsuitable for an actual application and we need to specify the details of the key store using the following settings...