ASP.NET（网页）=> ASP.NET CORE 3.1 WebAPI

Question

I'm trying to hook up my legacy system with my new Core 3.1 API but the payload that the legacy web app produces doesn't work in my API because all the values are null, but if I test in postman everything works as expected This是来自 postman 的有效载荷：

{"{"UserId":0,"UserGroup":"something","AccessToken":"","CreatedBy":"something","From":"2020/01/01","To":"2020/07/10","TokenName":"something"}
}

这是来自旧版 web 应用程序：

{"payload":{"UserId":0,"UserGroup":"soemthing","AccessToken":"","CreatedBy":"something","From":"2020/01/01","To":"2020/07/10","TokenName":"something"}}

如您所见，postman 有效负载不包含“有效负载”，而旧版包含，但有趣的是旧版应用程序支持此功能，这意味着我可以按原样发送有效负载，解析器将完成其工作。 那么，这里可能发生什么的任何线索？

Answer 1

从您提供的信息来看，旧版 api 似乎会产生一个 json object ，其属性名为payload 。

{
  "payload" : { /* the object contains UserId, UserGroup, etc */ }
}

但是，您的 .NET 内核 API 接受具有以下结构的 json object：

{
  userId: 0,
  UserGroup: "some group",
  /* other properties... */
}

因此，您可能需要在 .NET 核心 API 中定义具有名为Payload的属性的绑定model：

public class LegacyAppBindingModel
{
  public PayloadBindingModel Payload { get; set; }

  public class PayloadBindingModel
  {
    public int UserId { get; set; }
    /* other properties i.e. UserGroup, AccessToken, etc. */
  }
}