c# - How do i set up a default for ActiveAuthenticationSchemes? -

in asp.net core 2 project, have custom authenticationhandler middleware want plug in.

public class basicauthenticationmiddleware : authenticationhandler<authenticationschemeoptions> {     public basicauthenticationmiddleware(ioptionsmonitor<authenticationschemeoptions> options,         iloggerfactory logger, urlencoder encoder, isystemclock clock)         : base(options, logger, encoder, clock)     {     }     protected override task<authenticateresult> handleauthenticateasync()     {         var principal = new genericprincipal(new genericidentity("user"), null);         var ticket = new authenticationticket(principal, new authenticationproperties(), "basicauth");         return task.fromresult(authenticateresult.success(ticket));     } } 

in startup have following:

public void configureservices(iservicecollection services) {     services.addmvc();     services.addauthentication(options =>     {         options.defaultauthenticatescheme = "basicauth";         options.defaultchallengescheme = "basicauth";         options.addscheme("basicauth", x => {             x.displayname = "basicauthenticationmiddleware";             x.handlertype = typeof(basicauthenticationmiddleware);         });     }); } 

and view controller:

[route("api/[controller]")] public class valuescontroller : controller {     // api/values/works     [httpget]     [route("works")]     [authorize(activeauthenticationschemes = "basicauth")]     public string works()     {         return "works";     }      // api/values/doesnotwork     [httpget]     [route("doesnotwork")]     [authorize]     public string doesnotwork()     {         return "does not work";     }  } 

my authenticator handleauthenticateasync called when specify activeauthenticationschemes scheme name, otherwise not. have demo app showing behavior here: https://github.com/johnpaguirre/authenticationschemaproblem

i want basicauthenticationmiddleware log in demo logic. how can make activeauthenticationschemes default "basicauth" requests?

anyone have ideas on missing?

i don't think can set default, have other options.

1. create own custom authorisation attribute:

   public class basicauthauthorizeattribute : authorizeattribute {     public basicauthauthorizeattribute()     {         activeauthenticationschemes = "basicauth";     } } 

   and use on actions before:

   [basicauthauthorize] public string someaction() {     //snip } 

2. add authorize attribute actions , override needed. that, in `` method:

   public void configureservices(iservicecollection services) {     services.addmvc(options =>     {         options.filters.add(new authorizeattribute         {             activeauthenticationschemes = "basicauth"          });      });      //snip } 

   and overriding it:

   [allowanonymous] public string unsecureaction() {     //snip }