c# - Get user claims before any page loads on external ADFS login -

what i'm trying accessing user claims returns adfs login. adfs returns username , username have run query db user information , store it. don't know , best practice is. can access user claims in view controller like:

public actionresult index() {     var ctx = request.getowincontext();     claimsprincipal user = ctx.authentication.user;     ienumerable<claim> claims = user.claims;     return view(); } 

but need said access claims in global.asax.cs or startup.cs store user information before application runs.

this startup.auth.cs file:

public partial class startup {     private static string realm = configurationmanager.appsettings["ida:wtrealm"];     private static string adfsmetadata = configurationmanager.appsettings["ida:adfsmetadata"];      public void configureauth(iappbuilder app)     {         app.setdefaultsigninasauthenticationtype(wsfederationauthenticationdefaults.authenticationtype);          app.usecookieauthentication(             new cookieauthenticationoptions             {                 authenticationtype = wsfederationauthenticationdefaults.authenticationtype             });          app.usewsfederationauthentication(             new wsfederationauthenticationoptions             {                 wtrealm = realm,                 metadataaddress = adfsmetadata             });     } } 

we add event handler wsfederationauthenticationoptions value in our startup file.

this happens after security token has been validated.

app.usewsfederationauthentication(new wsfederationauthenticationoptions() {     metadataaddress = metadataaddress,      wtrealm = wtrealm,     wreply = callbackpath,     notifications = new wsfederationauthenticationnotifications()     {         securitytokenvalidated = (ctx) =>         {            claimsidentity identity = ctx.authenticationticket.identity;            dosomethingwithloggedinuser(identity);         }      } };