Hey,

the method to retrieve the session id in the rest interface does not appear to work as described here.

Is there any way I can troubleshoot this case and find out what's going wrong?

app.d: 

import vibe.d;

interface IMyAPI
{
    string test(Session session);
}

class API : IMyAPI
{
    @before!getSession("session")
    string test(Session session) { return "test complete"~session.id;}
}

Session getSession(HTTPServerRequest req, HTTPServerResponse res)
{
    return req.session ? req.session : res.startSession();
}

shared static this()
{
    auto router = new URLRouter;
    router.get("/", &index);
	
    auto restSettings = new RestInterfaceSettings;
    restSettings.baseURL = URL("http://127.0.0.1:8080/api");
    router.registerRestInterface(new API(), restSettings);
    router.get("/test.js", serveRestJSClient!IMyAPI(restSettings));
	
    auto settings = new HTTPServerSettings;
    settings.port = 8080;
    settings.sessionStore = new MemorySessionStore;
    listenHTTP(settings, router);
}

void index(HTTPServerRequest req, HTTPServerResponse res)
{
    res.render!("index.dt", req);
}

index.dt: 

p hello
script(src="test.js")
:javascript
    console.log("test script");
    IMyAPI.test({}, function(r) { console.log(r);});

Browser console result:

test script
test complete