Global variable in Web API

Question

I have a Web API application that is authenticated using a combination of userid and an APIKey as part of the RequestMessage. In my authorization filter I check if the combination is valid before proceeding. I then need to use the userid to log some actions in my controllers.

The UserID and key are encoded together. Something like: .../api/v1/Transaction?api_key=YmFyZGFnYWR2ZXJndXI

The problem I am having is how to expose the userid to the controller.

It's part of the APIKey parameter in the request. The UserID and key are encoded together. .../api/v1/Transaction?api_key=YmFyZGFnYWR2ZXJndXI — illug
– illug, Commented May 4, 2016 at 11:36
About passing data from filter to controller: Implement a public property in your controller (UserId) (or one of its base types). In the filter, you can access the controller via the context. If it is of a compatible type, you can just set the property of the controller (e.g. after casting it). — Dennis
– Dennis, Commented May 4, 2016 at 11:41

illug · Accepted Answer · 2016-05-04 13:24:13Z

1

Using the comment from Chips_100 I added CurrentUserId to my Controller and then this code to my AuthFilter:

public class CustomAuthFilter : AuthorizeAttribute
{
    private BaseController controller;
    public override void OnAuthorization(HttpActionContext actionContext)
    {   
        controller = actionContext.ControllerContext.Controller as BaseController;
        //Some code ommitted for clarity
        if (controller != null)
            controller.CurrentUserId = userAccount[0];
    }
}

Seems to work perfectly so far.

answered May 4, 2016 at 13:24

illug

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