我有一个Angular 的应用程序，能够与Azure B2C进行身份验证，但也有一个自定义的Web API，但当添加中间件的.NET核心Web API时，我得到了“必须提供客户端ID，这是在appsettings中？这就像appsettings没有绑定。
我在Azure中配置了所有的东西，包括expose API，scope，给予permissions等。
我现在只使用本地帐户，所以我没有任何其他身份提供程序设置，所以应该与来自Web API的clientid一起工作。

//tried this 
services.AddMicrosoftIdentityWebApiAuthentication(Configuration, "AzureAdB2C");

//this as well
services.AddAuthentication(JwtBearerDefaults.AuthenticationScheme)
        .AddMicrosoftIdentityWebApi(Configuration.GetSection("AzureAdB2C"));

{
  "AzureAdB2C": {
    "Instance": "https://{domain}.b2clogin.com/",
    "ClientId": "11111111-1111-1111-1111-111111111111", 
    "Domain": "{domain}.onmicrosoft.com",
    "SignUpSignInPolicyId": "b2c_1_SignupSign"    
  },
  "Logging": {
    "LogLevel": {
      "Default": "Information",
      "Microsoft": "Warning",
      "Microsoft.Hosting.Lifetime": "Information"
    }
  },
  "AllowedHosts": "*"
}


    Request starting HTTP/1.1 GET http://localhost:5000/weatherforecast
fail: Microsoft.AspNetCore.Server.Kestrel[13]
      Connection id "0HM729054ALE1", Request id "0HM729054ALE1:00000001": An unhandled exception was thrown by the application.
Microsoft.Extensions.Options.OptionsValidationException: IDW10106: The 'ClientId' option must be provided.

启动

using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;

using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Identity.Web;

namespace WepApi1
{
    public class Startup
    {
        public Startup(IConfiguration configuration)
        {
            Configuration = configuration;
        }

        public IConfiguration Configuration { get; }

        // This method gets called by the runtime. Use this method to add services to the container.
        public void ConfigureServices(IServiceCollection services)
        {
            //services.AddAuthentication(JwtBearerDefaults.AuthenticationScheme)
            //    .AddMicrosoftIdentityWebApi(Configuration.GetSection("AzureAdB2C"));

            services.AddMicrosoftIdentityWebApiAuthentication(Configuration, "AzureAdB2C");

            services.AddAuthorization();

            services.AddControllers();
                       
            services.AddCors(o => o.AddPolicy("CorsPolicy", builder =>
            {
                builder.WithOrigins("http://localhost:4200")
                       .AllowAnyMethod()
                       .AllowAnyHeader()
                       .AllowCredentials()
                       .SetIsOriginAllowed((host) => true);
            }));

          

        }

        // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
        public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
        {
            app.UseRouting();

            app.UseAuthentication();
          
            app.UseAuthorization();

            app.UseCors("CorsPolicy");

            app.UseEndpoints(endpoints =>
            {
                endpoints.MapControllers();
            });
        }
    }
}