详解ASP.NET Core WebApi 返回统一格式参数

{
  \"response\":{
    \"code\":200,
    \"msg\":\"Remote service error\",
    \"result\":\"\"
  }
}

using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.Filters;

public class WebApiResultMiddleware : ActionFilterAttribute
{
  public override void OnResultExecuting(ResultExecutingContext context)
  {
    //根据实际需求进行具体实现
    if (context.Result is  Result)
    {
      var  Result = context.Result as  Result;
      if ( Result.Value == null)
      {
        context.Result = new  Result(new { code = 404, sub_msg = \"未找到资源\", msg = \"\" });
      }
      else
      {
        context.Result = new  Result(new { code = 200, msg = \"\", result =  Result.Value });
      }
    }
    else if (context.Result is EmptyResult)
    {
      context.Result = new  Result(new { code = 404, sub_msg = \"未找到资源\", msg = \"\" });
    }
    else if (context.Result is ContentResult)
    {
      context.Result = new  Result(new { code = 200, msg = \"\", result= (context.Result as ContentResult).Content });
    }
    else if (context.Result is StatusCodeResult)
    {
      context.Result = new  Result(new { code = (context.Result as StatusCodeResult).StatusCode, sub_msg = \"\", msg = \"\" });
    }
  }
}

public void ConfigureServices(IServiceCollection services)
{
  services.AddMvc(options =>
  {
    options.Filters.Add(typeof(WebApiResultMiddleware));
    options.RespectBrowserAcceptHeader = true;
  });
}