Unable to get webApi result in controller - asp.net-mvc

Question

I am trying to create constraint for route.Based on the access info retrieved from Db,i will choose which route to choose.
I have created controller inheriting IRouteConstraint and calling repository,but Unable to get result from httpclient call.
Code snippet of my routeConfig
routes.MapRoute(
name: "Home",
url: "{*routelink}",
defaults: new { controller = "Home", action = "Index" },
constraints: new { routelink = new UserAccessController("Home") }
);
routes.MapRoute(
name: "Reports",
url: "{*routelink}",
defaults: new { controller = "Reports", action = "Index" },
constraints: new { routelink = new UserAccessController("Reports") }
);
Code snippet of Constarint
public class UserAccessController : IRouteConstraint
{
// GET: UserAccess
private readonly string _controller;
public UserAccessController(string Controller)
{
_controller = Controller;
}
public bool Match(HttpContextBase httpContext, Route route, string parameterName, RouteValueDictionary values, RouteDirection routeDirection)
{
bool _authorized = false;
var userAccessDetails = GetUserRoleDetails();
switch (_controller)
{
case "Home":
{
_authorized = Convert.ToBoolean(userAccessDetails.CanAccessHome);
return _authorized;
}
case "Reports":
{
_authorized = Convert.ToBoolean(userAccessDetails.Result.CanAccessReports);
return _authorized;
}
}
return _authorized;
}
public async Task<UserRole> GetUserRoleDetails()
{
IRepository _repository = new Repository();
var userRoleDetails = new UserRole();
var currentUser = await _repository.GetCurrentUser(Path.GetFileName(HttpContext.Current.User.Identity.Name.ToUpper()));
if (currentUser != null)
{
var roles = await _repository.GetUserRoles();
userRoleDetails = roles.Where(r => r.RoleId == currentUser.RoleId).FirstOrDefault();
}
return userRoleDetails;
}
}
the repository is calling httpwrapper class to get result from httpclient.
public static async Task<IEnumerable<T>> GetAsync(IEnumerable<T> t, string path)
{
HttpResponseMessage response;
response = await client.GetAsync(path);
if (response.IsSuccessStatusCode)
{
t = await response.Content.ReadAsAsync<IEnumerable<T>>();
}
return t;
}
Not sure whats the issue,not getting result response = await client.GetAsync(path);.
I am able to get result with the same api and parameters when called from Session_Start event in Global.asax. Please let me know whats the issue and how can retrieve result from http.

Answer 1

I have resolved this issue by keeping the route config as it is.
Created a new Action filter and reroute the url based on access.
Placed this filter on the top of default route.
public class StartupFilter:ActionFilterAttribute
{
public override void OnActionExecuting(ActionExecutingContext filterContext)
{
var userAccessDetails = HttpContext.Current.Session["Role"] as UserRole;
if (userAccessDetails.HasAccessHome)
{
filterContext.Result = new RedirectToRouteResult(new RouteValueDictionary(
new
{
controller = "Home",
action = "Index"
}));
}
else if (userAccessDetails.HasAccessReport))
{
filterContext.Result = new RedirectToRouteResult(new
RouteValueDictionary(
new
{
controller = "Reports",
action = "Index"
}));
}
base.OnActionExecuting(filterContext);
}
}