/// <summary> /// Adds a named Microsoft Identity application authentication message handler initialized with delegates. /// </summary> /// <param name="builder">Builder.</param> /// <param name="serviceName">Name of the configuration for the service.</param> /// <param name="configureOptions">Action to configure the options.</param> /// <returns>The builder for chaining.</returns> public static IHttpClientBuilder AddMicrosoftIdentityAppAuthenticationHandler( this IHttpClientBuilder builder, string serviceName, Action <MicrosoftIdentityAuthenticationMessageHandlerOptions> configureOptions) { if (builder == null) { throw new ArgumentNullException(nameof(builder)); } builder.Services.Configure(serviceName, configureOptions); builder.AddMicrosoftIdentityAuthenticationHandlerCore(factory => factory.CreateAppHandler(serviceName)); return(builder); }