How do you pass in variables into the shell or the root view model

Question

I'm new to durandal. I just wondered if there was a way to pass in variables to the root view model aka the shell, either via querystring or any other way?

so main.js looks something like the below

define(['durandal/app'],  function (app) {
  app.configurePlugins({
    router: true
  });

  app.start().then(function () {
    app.setRoot('shell');
  });
});

Can you do something similar to what's written below in the shell.js file. I tried it but it doesn't work

function activate(variableIwantToPass) {
  doSomething(variableIwantToPass);
  configureRoutes(variableIwantToPass);
  return router.activate();
}

function configureRoutes(variableIwantToPass) {
  var specialRoute = 'bar';
  if(variableIwantToPass == 'foo') {
    specialRoute = foo;
  }
  var routes = [
    {
      route: '',
      moduleId: 'home'
    },
    {
      route: 'doThings/:specialRoute/',
      moduleId: 'orchestrator'
    }
  ];

  router.makeRelative({ moduleId: 'viewModels'}).map(routes); 
}

I can't make a call to a service to get the data in the shell as the information/variable I want is passed into the page that leads to the spa as a querystring parameter.

So, is it possible to pass something into the shell, or is there any other alternative to achieve what I want. Like creating a cookie to store this variable and reading it via javascript in shell.js?

"Can you so something like the below in the shell.js file" makes no sense to me, could you perhaps rephrase that? — Shelvacu, Oct 27 '15 at 18:59

score 0 · Answer 1 · answered Nov 15 '15 at 06:29

In a production ENV, it's almost compulsory to do certain computation prior to shell. For instance take a look at Durandal.Auth on github and how authentication is handled and token info stored in session storage and is accessed in shell.

How do you pass in variables into the shell or the root view model

1 Answers1