在Controller Web API中创建自定义错误401响应

Question

[您好，我在如何创建自定义错误401消息时遇到了障碍，我正在阅读一些有关如何在C＃中创建自定义错误响应的教程，当我看到其中一些代码大多数不起作用，而某些代码看起来和理解起来很混乱时。

这是我的代码

请注意，如果我使用的功能已获得授权，则我将使用[Authorize]属性进行返回。

[Authorize]     
        [HttpGet]
        public HttpResponseMessage gethistogram(string entity_name, string kpi_name, string chart_type, int unix_start, int unix_end, string language)
        {

            var result = _definitionRepository.histogram(entity_name,kpi_name,chart_type,unix_start,unix_end,language);
            //if (result == null)
            //{
            //    return Request.CreateErrorResponse(HttpStatusCode.BadRequest, " Entity Name? Chart Type? KPI Name?, Language? Unix Start? or Unix End?");
            //}
            //return Request.CreateResponse(HttpStatusCode.OK, result);
            if (chart_type == null)
            {
                return Request.CreateErrorResponse(HttpStatusCode.BadRequest, "Invalid chart Type to access data");
            }
            if (kpi_name == null)
            {
                return Request.CreateErrorResponse(HttpStatusCode.BadRequest, "Invalid KPI name to access data");
            }
            if (entity_name == null)
            {
                return Request.CreateErrorResponse(HttpStatusCode.BadRequest, "Invalid Entity name to access data");
            }
            if (kpi_name == null && chart_type == null && entity_name == null)
            {
                return Request.CreateErrorResponse(HttpStatusCode.BadRequest, "Required parameters missing to access data");
            }
            return Request.CreateResponse(HttpStatusCode.OK, result);

        }

我想从中更改默认错误响应>

{
    "Message": "Authorization has been denied for this request."
}
进入

{
    "Message": "This request is unauthorized"
}
这是我的存储库以进行检查

public List<Root> histogram(string entity_name, string kpi_name , string chart_type ,int unix_start, int unix_end, string language)
{
    var all = _db
        .kpi_definition
        //.Include("KPI")
        .Where(dl => entity_name == dl.entity_name && kpi_name == dl.kpi_name && chart_type == dl.chart_type && unix_start == dl.unix_start && unix_end == dl.unix_end && language == dl.language)
        .Select(dl => new Root
        {
            chart_type = new List<Chart>
            {
               new Chart { entity_name = dl.entity_name ,
                           entity_display_name = dl.entity_display_name,
                           kpi = new List<KPI>
                           {
                              new KPI {
                                       kpi_name = dl.kpi_name,
                                       kpi_display_name = dl.kpi_display_name,
                                       required = new List<Required>
                                       {
                                           new Required
                                           {
                                               //kpi_required = dl.kpi_required
                                           }
                                       },
                                       optional = new List<Optional>
                                       {
                                           new Optional
                                           {
                                               //kpi_optional = dl.kpi_optional
                                           }
                                       },
                                       objects = new List<Objects>
                                       {
                                           new Objects
                                           {
                                               field_name = new List<FieldName>
                                               {
                                                   new FieldName
                                                   {
                                                    entity_display_name = dl.entity_display_name,
                                                    type = "Select or Text",
                                                    @default = "default value(already selected)",
                                                    list = "",
                                                    ID = dl.ID
                                                   }
                                               }

                                           }
                                       }
                                      }
                           }
                         }
            }
        }).ToList();
    return all;
}

[您好，我在如何创建自定义错误401消息时遇到了障碍，当我看到大部分..的代码时，我正在阅读一些有关如何在C＃中创建自定义错误响应的教程。 。

Answer 1

我认为您可以创建一个自定义授权过滤器，将响应和自定义消息一起设置为401。这是链接“ How to return custom message if Authorize fails in WebAPI”，我相信这是您想要实现的目标。