Virgin-acl nodejs

I need to create access permissions on my page, but I have no idea where to start. I installed virgin-acl .

I have for example the page below and I want a userexample to only see:

app.get('/usuarios/novo', isLoggedIn, usuario.novo); 

I would like the user ID to be verified, and if the user is allowed to view this page.

The correct one would be to use, like the following example:

acl.isAllowed('usuarioexemplo', 'usuarios', 'view', function(err, res){  
    if(res){  
        console.log("User joed is allowed to view blogs")  
    }  
}  

But where do I create these rules? No controller? No router? In the app?