Http认证令牌处理

    // 1. 首先，需要加入客户端信息，每个客户端必须有唯一的ID
    sc.AddClientTokenProvider(options =>
    {
        options.AddClient("", "TestClient", "")
            // 设置此客户端使用Basic认证
            .UseBasicAuth("test", "test");
    });
    // 2. 设置HttpClient关联认证管理器
    sc.AddHttpClient("", client =>
    {
        client.BaseAddress = new Uri("http://localhost");
    })
    // 设置此客户端关联TestClient的认证配置
    .AddTokenMessageHandler("TestClient");


    // 3. 使用
    IServiceProvider sp = sc.BuildServiceProvider();

    IHttpClientFactory httpFactory = sp.GetRequiredService<IHttpClientFactory>();
    var client = httpFactory.CreateClient("");
    string response = await client.GetAsync<string>("/limit");