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Asked: 2026-06-05T22:54:32+00:00

I’m working on a .net webAPI project where we are using dependency injection (StructureMap

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I’m working on a .net webAPI project where we are using dependency injection (StructureMap I believe) to provide our controllers instances of per-session Data Access Objects. This part works great.

What I now need to do is provide an instance of AuthorizationFilterAttribute with a DataAccessObject.

The AuthorizationFilterAttribute is used via an annotation. For example:

[ApiKeyAuthorization]
public DataModel ControllerAction(int id) { }

That will ensure that before the controller gets to run, authorization is checked.

What I need is for that ApiKeyAuthorization object to be created with reference to my shared-per-session Database Access Object.

Is there an easy way to make that happen?

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  1. Editorial Team

    There are several similar questions on SO about dependency injection to Action Filters. Here are few:

    Ninject and MVC3: Dependency injection to action filters
    How to use dependency injection with an attribute?
    Injecting dependencies into ASP.NET MVC 3 action filters. What's wrong with this approach?

    Jimmy Bogart’s blog post (linked from one of the answers): http://lostechies.com/jimmybogard/2010/05/03/dependency-injection-in-asp-net-mvc-filters/

    Another StructureMap based solution: http://www.thecodinghumanist.com/blog/archives/2011/1/27/structuremap-action-filters-and-dependency-injection-in-asp-net-mvc-3

    An interesting solution for allowing constructor based injection for action filters: http://iridescence.no/post/Constructor-Injection-for-ASPNET-MVC-Action-Filters.aspx

    Hope it will take you on the right track.

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