FeatureSelect.AspNetCore 1.0.6

FeatureSelect

FeatureSelect 是一个灵活的特征开关库，支持 ASP.NET Core 集成。

安装

通过 NuGet 安装

Install-Package FeatureSelect

用法

创建一个功能源并使用它来获取一个功能。一个 "功能" 包含两个函数，一个用于启用该功能时执行，一个用于禁用该功能时执行。

var source = new ConfigurationFeatureSource(Configuration);

var feature = source.GetFeature("MyFeature");

var result = feature.Execute(() => "My feature is enabled", () => "My feature is disabled");

为了与 ASP.NET Core 集成，使用 AddFeatureSelect 扩展方法在 Program.cs 中注册 FeatureSelect。

var builder = WebApplication.CreateBuilder(args);

var config = builder.Configuration;

builder.Services.AddControllers();
builder.Services.AddFeatureSelect(config.GetSection("Features"));

var app = builder.Build();

app.UseRouting();

app.MapControllers();

app.Run();

现在，您可以在控制器中使用 [IfEnabled] 和 [IfDisabled] 属性切换任何控制器或路由的开/关。

[IfEnabled("Customers")]
public class CustomerController
{
    [HttpGet("/customers")]
    [IfEnabled("GetCustomers")]
    public IActionResult Get()
    {
        ...
    }
}

您还可以注入 FeatureSource 的一个实例。

public class MyController
{
    [HttpGet("/my-feature")]
    public string Get([FromServices] FeatureSource features)
    {
        return features
            .GetFeature("MyFeature")
            .Execute(() => "My feature is enabled", () => "My feature is disabled");
    }
}

为了配置哪些功能已启用，简单地在 appsettings.json、用户密钥或环境变量中定义它们。

{
  "Logging": {
    "LogLevel": {
      "Default": "Information",
      "Microsoft.AspNetCore": "Warning"
    }
  },
  "AllowedHosts": "*",
  "Features": {
    "feature1": "enabled",
    "feature2": "diabled",
    "feature3": "enabled"
  }
}