Rascal Using the webserver module

Question

I'm currently working on the stable version of Rascal and I want to spawn the Rascal webserver to serve my html templates with javascript functions. Looking at the Webserver module I can't see how to use the serve function to use the webserver. It asks for a location (I'm assuming that the location would be something like |http://localhost:8080|) and a callback that has the type of Response (Request) but what is that type? I don't know how to create this kind of type and what it exactly is.

Answer 1

The type

Response (Request) callback

is a function, E.g.:

Response (Request r) { 
    return response(...);
}

This function is an anonymous function (it has no name) that you can pass into the serve function as an argument, you can also define it as a normal function with a name, and just put the name of that function as the argument.

So this would probably work:

serve(|http://localhost:8080|, 
           Response (Request r){ 
               return response("Hello world"); 
           }):

Since there is a factory method

Response response(str content)

in Webserver.rsc, that will create a response for you from a string argument.