/// <summary> /// Registers the OpenIddict token validation services in the DI container. /// Note: the validation handler only works with the default token format /// or reference tokens and cannot be used with JWT tokens. To validate /// JWT tokens, use the JWT bearer handler shipping with ASP.NET Core. /// </summary> /// <param name="builder">The services builder used by OpenIddict to register new services.</param> /// <param name="configuration">The configuration delegate used to configure the validation services.</param> /// <remarks>This extension can be safely called multiple times.</remarks> /// <returns>The <see cref="OpenIddictBuilder"/>.</returns> public static OpenIddictBuilder AddValidation( [NotNull] this OpenIddictBuilder builder, [NotNull] Action <OpenIddictValidationBuilder> configuration) { if (builder == null) { throw new ArgumentNullException(nameof(builder)); } if (configuration == null) { throw new ArgumentNullException(nameof(configuration)); } configuration(builder.AddValidation()); return(builder); }