How to fire OnActionExecuting in Web Api controller?

Question

My api endpoints are using asp.net mvc (4) web api controllers.

Are there any events similiar to how mvc has OnActionExecuting?

Also, how to I access the Req

Answer 1

Use action filters.

public class MyActionFilter : ActionFilterAttribute
{
    public override void OnActionExecuting(ActionExecutingContext filterContext)
    {
         //use filterContext.HttpContext.Request...
    }
}

For your controller action, apply the attribute

[MyActionFilter]
public Action MyAction(...)
{
    //...
}

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As Satpal mentioned in his comment, you might actually want to use AuthorizeAttribute to authorize access to your actions.