'SignInScheme' 必须提供选项

'SignInScheme' option must be provided

我正在创建一个 ASP.NET 5 MVC 6 应用程序,它将仅使用 Facebook/Google 身份验证。我还尝试在没有整个 ASP.NET Identity 的情况下使用 cookie 中间件——在这篇文章之后: https://docs.asp.net/en/latest/security/authentication/cookie.html

所以我从一个没有身份验证的空白应用程序开始,然后添加了 Microsoft.AspNet.Authentication.Cookies 和 Microsoft.AspNet.Authentication.Facebook NuGet 包,以便采用非常简约的方法,我不包含任何我不包含的内容不需要。

我在 Startup.cs 中将以下代码添加到配置中,但出现 "SignInScheme option must be provided" 错误。知道我错过了什么吗?

app.UseCookieAuthentication(options =>
            {
                options.AuthenticationScheme = "MyCookieMiddlewareInstance";
                options.LoginPath = new PathString("/Accounts/Login/");
                options.AccessDeniedPath = new PathString("/Error/Unauthorized/");
                options.AutomaticAuthenticate = true;
                options.AutomaticChallenge = true;
            });

            app.UseFacebookAuthentication(options =>
            {
                options.AppId = "myFacebookAppIdGoesHere";
                options.AppSecret = "myFacebookAppSecretGoesHere";
            });

如您看到的错误消息所示,您需要在 Facebook 中间件选项中设置 options.SignInScheme

app.UseFacebookAuthentication(options => {
    options.AppId = "myFacebookAppIdGoesHere";
    options.AppSecret = "myFacebookAppSecretGoesHere";

    // This value must correspond to the instance of the cookie
    // middleware used to create the authentication cookie.
    options.SignInScheme = "MyCookieMiddlewareInstance";
});

或者,您也可以从 ConfigureServices 全局设置它(它将配置每个身份验证中间件,因此您不必设置 options.SignInScheme):

public void ConfigureServices(IServiceCollection services) {
    services.AddAuthentication(options => {
        // This value must correspond to the instance of the cookie
        // middleware used to create the authentication cookie.
        options.SignInScheme = "MyCookieMiddlewareInstance";
    });
}