Customizing script loading based on the AngularJS template

I am currently working on developing a Single Page Web Application that will require user/password protection. Specific modules will be loaded based on the user's profile to restrict access in a role-based manner.

For loading templates corresponding to the user ID, I am utilizing ng-view.

My question is: How can I selectively load the JavaScript file of the template's controller?

<script script src="restrictetd/path/MyAngularControl.js"></script>

If a user does not have access to a specific template, there is no need to download its corresponding JavaScript file.

Any advice on this matter would be greatly appreciated.

javascriptangularjsngrouteng-view

Answer №1

You might be overcomplicating your application unnecessarily. Unless your app is extremely large, it's usually easier to maintain by sending all necessary JavaScript to the client side. The client's responsibility is to hide actions that users shouldn't be able to perform, while it's the server's role to enforce those restrictions.

However, achieving what you're aiming for is indeed possible. In the route, start by fetching the JavaScript file and template without initially returning anything or showing a loading indicator. Once the JS file is fetched, add a script tag to the HEAD or process the file to load it. Then, proceed to load the template and compile it.

One important thing to note about this approach is that you cannot introduce new modules. It is recommended to add any new controllers/directives to the module already in use for ng-app. While you can define new entities within an initialized Angular app, you are not able to redefine existing ones. For instance, if a controller named "xyz" already exists and you attempt to load another controller with the same name, the second one will have no effect.

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