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I'm writing a single-page application in AngularJS that needs to know, whether user is logged-in before running any routes at all.

I'm using Django backend, which supports anonymous sessions, so just looking at cookies I can't figure, if user is logged-in or anonymous. So, to find that out I want to make an Ajax request to backend in Angular application-global .run() and delay any execution of angular application until that request finishes.

How do I do that?

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    I would suggest you use github.com/angular-ui/ui-router/wiki#resolve in ui-router or an http interceptor docs.angularjs.org/api/ng/service/$http. Commented Mar 28, 2016 at 9:47
  • For your need, you should use ui-router resolve. But its better to check for the server response with an http interceptor and redirecting the user if authentication fails. Commented Mar 28, 2016 at 9:49
  • @AbdulMannan I considered using ui-router's resolve as a last resort solution. Unfortunately, with this approach I'd have to manually call the same resolve code at every route, which is repetitive and error-prone. Checking out $http interceptors. Thanks for suggestion. Commented Mar 28, 2016 at 9:50
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    In that case, you should use interceptors and in case of failed authentication, return a 403 error from server and look for the 403 error resonse in your angular interceptor and redirect. Commented Mar 28, 2016 at 9:53
  • @AbdulMannan Probably, you are right. Reading the docs currently. Just one question: will interceptors delay rendering of the first page until authentication promise is resolved? Cause I want to avoid the scenario when an anonymous page starts rendering and then in the middle of that a promise resolves, so user gets a Frankenstein of anonymous and logged-in pages. Commented Mar 28, 2016 at 9:58

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Create a directive that you can put on each view. Our project has a base view using razor so it makes it easier. Let the directive wait for the promise and only make the content visible when it is resolved.

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