Question

我正在考虑创建一个REST WebAPI，并希望将“错误”消息与我的状态代码一起返回 - 作为终端客户端关于出错的原因。

其中一个回复将是422状态代码 - 但我无法看到如何将数据元素纳入我的响应中？

public HttpResponseMessage GetValidate(string number)
{
   var response = Request.CreateResponse((HttpStatusCode)422);
   response.Content new { error = "something wrong here", item = "number" }; // This is wrong!

   return response;
}

Answer 1

HttpStatusCode代码中没有422的定义。看看documentation。

您可以使用500 http状态代码Interval Error：

return Request.CreateResponse(HttpStatusCode.InternalServerError, new {error = "something wrong here", item = "number"});

或400 Bad Request：

return Request.CreateResponse(HttpStatusCode.BadRequest, new { error = "something wrong here", item = "number" });

Answer 2

return Request.CreateErrorResponse(HttpStatusCode.NotFound, "message");或其他重载。

Answer 3

IETF有一个提案草案，提供从API返回错误信息的标准方法。详情请见http://tools.ietf.org/html/draft-nottingham-http-problem-04

我有一个支持在Nuget和GitHub project上创建此格式的库。

就像这样......

 var problem = new ProblemDocument
        {
            ProblemType = new Uri("http://example.org"),
            Title = "Houston we have a problem",
            StatusCode = HttpStatusCode.BadGateway,
            ProblemInstance = new Uri("http://foo")
        };

        problem.Extensions.Add("bar", new JValue("100"));

 var response = new HttpResponseMessage(HttpStatusCode.BadGateway)
        {
            Content = new ProblemContent(problem)
        };

返回数据/正文以及HttpReponseCode？

3 个答案: