c# - Token based authentication in repository pattern project -

i have created project based on repository pattern. , used tutorial implement token based authentication tutorial link here.

here's code:

valuescontroller.cs

public ihttpactionresult getauth(string username, string password)     {         return ok(_au.authenticate(username, password)); //returns true or false     } 

iauthenticator.cs

namespace authso.core.interface {     public interface iauthenticator:idisposable     {         bool authenticate(string username, string password);     } } 

authenticator.cs

namespace authso.core.manager {     public class authenticator : iauthenticator, idisposable     {         public igetdata _get;         public authenticator(igetdata _get)         {             this._get = _get;         }         public bool authenticate(string username, string password)         {             return _get.authenticate(username, password);         }         public void dispose()         {             //left empty here, nothing dispose here guess         }     } } 

authenticatorprovider.cs

namespace authso.api.provider {     public class authenticatorprovider : oauthauthorizationserverprovider     {         public override async task validateclientauthentication(oauthvalidateclientauthenticationcontext context)         {             context.validated();         }          public override async task grantresourceownercredentials(oauthgrantresourceownercredentialscontext context)         {              context.owincontext.response.headers.add("access-control-allow-origin", new[] { "*" });              using (iauthenticator _auth = new authenticator()) //i'm getting error here             {                 bool result = _auth.authenticate(context.username, context.password);                  if (!result)                 {                     context.seterror("invalid_grant", "the user name or password incorrect.");                     return;                 }             }              var identity = new claimsidentity(context.options.authenticationtype);             identity.addclaim(new claim("sub", context.username));             identity.addclaim(new claim("role", "user"));              context.validated(identity);          }     } } 

issue :

how can solve issue. i'm using autofac dependency injection.

my sample project issue in github repo

any advice helpful, thank you.

update #1:

i tried using idisposable still gets me error, please see updated authenticator.cs code. (tokenauthissue/authso.core/manager/authenticator.cs in github)

update #2:

i tried using this

using (iauthenticator _auth = new authenticator(new getdata())) 

but again got error

<error> <message>an error has occurred.</message> <exceptionmessage> error occurred when trying create controller of type 'valuescontroller'. make sure controller has parameterless public constructor. </exceptionmessage> <exceptiontype>system.invalidoperationexception</exceptiontype> <stacktrace> @ system.web.http.dispatcher.defaulthttpcontrolleractivator.create(httprequestmessage request, httpcontrollerdescriptor controllerdescriptor, type controllertype) @ system.web.http.controllers.httpcontrollerdescriptor.createcontroller(httprequestmessage request) @ system.web.http.dispatcher.httpcontrollerdispatcher.<sendasync>d__1.movenext() </stacktrace> <innerexception> <message>an error has occurred.</message> <exceptionmessage> type 'authso.api.controllers.valuescontroller' not have default constructor </exceptionmessage> <exceptiontype>system.argumentexception</exceptiontype> <stacktrace> @ system.linq.expressions.expression.new(type type) @ system.web.http.internal.typeactivator.create[tbase](type instancetype) @ system.web.http.dispatcher.defaulthttpcontrolleractivator.getinstanceoractivator(httprequestmessage request, type controllertype, func`1& activator) @ system.web.http.dispatcher.defaulthttpcontrolleractivator.create(httprequestmessage request, httpcontrollerdescriptor controllerdescriptor, type controllertype) </stacktrace> </innerexception> </error> 

this dependency injection issue. please guide me solution.

looks iauthenticator has not inherited idisposable. when using 'using' idisposable makes sure can dispose variable using statement after using scope has ended.