How can I have a seperate login page using Durandal that has a different layout then the shell? - durandal

Question

I've read through Durandal login page redirect pattern wow, lots of code to do what I'd think would be pretty simple.
I've also read through https://groups.google.com/forum/#!topic/durandaljs/RdGpwIm1oOU as I'd like the login page to have a simple logo with a login form, but I'd also like routing for a registration and about page as well. The rest of my site will have a menu, header, etc which I don't want to show until the user is logged in. Also, I'm not sure how this approach would update when the user logs in.
Another code example that almost does what I want to do: https://github.com/Useful-Software-Solutions-Ltd/Durandal451/blob/master/Durandal451v2/App/global/session.js
So, what should I do? Is there an official way to do this? There seems to be a mish mash of things out there that people have tried. I would think this would be a really common occurrence but couldn't find anything on the main docs.

Answer 1

I'm not sure this is the simplest way, but this is what I got
you will need to add some extra function after app.start() is triggered.
main.js
var auth = require('authentication'); // Authentication module
app.start().then(function()
{
// This function will wait for the promise
auth.init().then(function(data)
{
// When successfully authenticate, set the root to shell
app.setRoot('views/shell');
}
});
authentication.js
define(function(require)
{
var app = require('durandal/app');
return {
init: function()
{
// Initialize authentication...
return system.defer(function(dfd)
{
// Check if user is authenticate or if there has stored token
var isAuthenticate = someOtherFunctiontoCheck();
if (isAuthenticate)
{
dfd.resolve(true); // return promise
}
else
{
// When not authenticate, set root to login page
app.setRoot('views/login');
}
}
}
};
});
good luck! :)
UPDATE
login.js
define(function(require)
{
var ko = require('knockout');
var auth = require('authentication');
var username = ko.observable();
var password = ko.observable();
return {
username: username,
password: password,
submitForm: function()
{
// Do a login, if success, auth module will take care of it
// and here will take of the error
auth.login(username(), password()).error(function()
{
// notify user about the error (e.g invalid credentials)
});
}
};
});
Authentication.js
define(function(require)
{
var app = require('durandal/app');
return {
init: function()
{
// Initialize authentication...
return system.defer(function(dfd)
{
// Check if user is authenticate or if there has stored token
var isAuthenticate = someOtherFunctiontoCheck();
if (isAuthenticate)
{
dfd.resolve(true); // return promise
}
else
{
// When not authenticate, set root to login page
app.setRoot('views/login');
}
}
},
login: function(username, password)
{
// do authenticate for login credentials (e.g for retrieve auth token)
return $.ajax({
url : 'api/login',
type : 'POST',
data : {
username: username,
password: password
}
}).then(function(token){
// on success, stored token and set root to shell
functionToStoreToken(token);
// Set root to shell
app.setRoot('views/shell');
});
}
};
});