Global variable in Web API

问题

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.

回答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.

来源：https://stackoverflow.com/questions/37026394/global-variable-in-web-api