Scala Programming Projects

Setting the main method

By default, Scala.js only creates a JavaScript library with all your dependencies. To make it an application, you have to add the client configuration of the build.sbt file, as shown in the following code:

scalaJSUseMainModuleInitializer := true

Once defined, Scala.js looks for an object containing the main method, as in a normal JVM application. We can create that object in the client/src/main/scala/io/fscala/shopping/client folder. Create a Scala file named UIManager.scala.

In the main function, we would like to log in to the API and initialize the interface with ProductDiv and CartDiv, which we defined earlier, as shown in the following code:

object UIManager { val origin: UndefOr[String] = dom.document.location.origin ...