/// <summary>
/// Occurs before the action method is invoked.
/// If cached key exist, the actionContext.Response is assigned with the cached data.
/// When actionContext.Response is not null, the OnActionExecuted will not run.
/// </summary>
public override void OnActionExecuting(HttpActionContext actionContext)
{
var mainKey = actionContext.Request.RequestUri.ToString();
var authHeader = actionContext.Request.Headers.Authorization;
var key = ConstructKeyBasedOnAuthorizationHeader(mainKey, authHeader);
if (cache.DoesKeyExist(key))
{
var value = cache.Get <string>(key);
var content = new StringContent(value);
content.Headers.ContentType = GetContentType(key);
actionContext.Response = actionContext.Request.CreateResponse();
actionContext.Response.Content = content;
}
}
