实施Google Open ID与.NET Core 2.1的正确方法是什么？

Question

我正在尝试通过遵循Pluralsight培训来学习ASP.NET核心身份验证选项。在该培训中，他们使用Azure进行身份验证。

我想用谷歌。以下是添加Google Auth的代码：

    public void ConfigureServices(IServiceCollection services)
    {
        services.AddAuthentication(options =>
        {
            options.DefaultScheme = CookieAuthenticationDefaults.AuthenticationScheme;
            options.DefaultChallengeScheme = OpenIdConnectDefaults.AuthenticationScheme;
        })
        .AddOpenIdConnect(options =>
        {
            _configuration.Bind("Google", options);
        })
        .AddCookie();

        services.AddSingleton<IGreeter, Greeter>(); // Dependency Injection for custom service Greeter
        services.AddDbContext<OdeToFoodDbContext>(options => options.UseSqlServer(_configuration.GetConnectionString("OdeToFood")));
        services.AddScoped<IRestaurantData, SqlRestaurantData>(); // scoped to http transaction, dbcontext is not thread safe
        services.AddMvc();
    }

在appsettings.json我有这些定义：

{
    "Google": {
        "ClientId": "234092845903-n92krp955lrp46mdf445g5vo0sqp2eks.apps.googleusercontent.com",
        "ClientSecret": "bRg1flFud87hfsef89jMKoGW"
    },
    "Greeting":  "Hello from appsettings.json !!",
    "ConnectionStrings": {
        "OdeToFood": "Server=(localdb)\\MSSQLLocalDB;Database=OdeToFood;Trusted_Connection=True;MultipleActiveResultSets=true"
    }
}

但是，当我运行应用程序而不是Google登录屏幕时，我收到错误消息：

处理请求时发生未处理的异常。 InvalidOperationException：向OpenIdConnectOptions提供Authority，MetadataAddress，Configuration或ConfigurationManager Microsoft.AspNetCore.Authentication.OpenIdConnect.OpenIdConnectOptions.Validate（）

---

InvalidOperationException：向OpenIdConnectOptions提供Authority，MetadataAddress，Configuration或ConfigurationManager Microsoft.AspNetCore.Authentication.OpenIdConnect.OpenIdConnectOptions.Validate（）Microsoft.AspNetCore.Authentication.RemoteAuthenticationOptions.Validate（string scheme）Microsoft.AspNetCore.Authentication.AuthenticationHandler.InitializeAsync（AuthenticationScheme） scheme，HttpContext context）Microsoft.AspNetCore.Authentication.AuthenticationHandlerProvider.GetHandlerAsync（HttpContext context，string authenticationScheme）Microsoft.AspNetCore.Authentication.AuthenticationMiddleware.Invoke（HttpContext context）Microsoft.AspNetCore.StaticFiles.StaticFileMiddleware.Invoke（HttpContext context）Microsoft.AspNetCore .Diagnostics.DeveloperExceptionPageMiddleware.Invoke（HttpContext context）

我究竟做错了什么？

ClientID和ClientSecret在Google Developers Console中定义。

Answer 1

在Startup类中添加此方法。

services.AddAuthentication().AddGoogle(googleOptions =>
{
    googleOptions.ClientId = Configuration["Authentication:Google:ClientId"];
    googleOptions.ClientSecret = Configuration["Authentication:Google:ClientSecret"];
});