app.UseCookieAuthentication(new CookieAuthenticationOptions
        {
            AuthenticationType = DefaultAuthenticationTypes.ApplicationCookie,
            LoginPath = new PathString("/Account/Logon"),
            Provider = new CookieAuthenticationProvider
            {
                // Enables the application to validate the security stamp when the user logs in.
                // This is a security feature which is used when you change a password or add an external login to your account.
                OnValidateIdentity = SecurityStampValidator.OnValidateIdentity<ApplicationUserManager, ApplicationUser>(
                    validateInterval: TimeSpan.FromMinutes(30),
                    regenerateIdentity: (manager, user) => manager.CreateIdentityAsync(user, DefaultAuthenticationTypes.ApplicationCookie))
            }
        });

        PublicClientId = "self";
        OAuthOptions = new OAuthAuthorizationServerOptions()
        {
            AllowInsecureHttp = true,
            TokenEndpointPath = new PathString("/api/v1/auth/token"),
            AccessTokenExpireTimeSpan = TimeSpan.FromDays(1),
            Provider = new ApplicationOAuthProvider(PublicClientId)
        };

        // Token Generation
        app.UseOAuthAuthorizationServer(OAuthOptions);
        app.UseOAuthBearerTokens(OAuthOptions);
        app.UseOAuthBearerAuthentication(new OAuthBearerAuthenticationOptions());