C＃使用ServiceStack彻底反序列化List <someobject>

Question

我正在尝试接收POCO的POST列表，但通过电汇提交时，无法通过Swagger API或Postman反序列化。我已经序列化了该对象以确认它应该如何序列化，但是当将其返回到表单主体时，request对象的参数为null。

public class NameValuePair
{
    public string Name { get; set; }
    public string Value { get; set; }
}

public class NameValueList
{
    private List<NameValuePair> valuesToProcess = null;

    public List<NameValuePair> ValuesToProcess { get { return valuesToProcess; } set { valuesToProcess = value; } }

    public NameValueList()
    {
        valuesToProcess = new List<NameValuePair>();
    }
}

[Api("A description of what the API does")]
[Tag("Enriching Requests")]
[ApiResponse(HttpStatusCode.BadRequest, "Your request was not understood")]
[ApiResponse(HttpStatusCode.InternalServerError, "Oops, something broke")]
[Route("/EnrichValueList", "POST", Summary = "Summary of the Web Get method", Notes = "Longer information about what this service does")]

public class EnrichValueList : IPost, IReturn<EnrichValueListResponse>
{

    [ApiMember(Name = "NameValues", Description = "A string that represents a value with which to understand more information about", ParameterType = "body", DataType = "NameValueList", IsRequired = true)]
    public NameValueList NameValues
    {
        get;

        set;
    }

    [ApiMember(Name = "AssociatedActivities", Description = "A comma seperated string that links Enrichment Activities with this value", ParameterType = "body", DataType = "string", IsRequired = false)]
    public string AssociatedActivities
    {
        get;

        set;
    }

}

在这种情况下，request.NameValues为null（不会引发错误）：

public async Task<EnrichValueListResponse> Post(EnrichValueList request)
    {
        EnrichValueListResponse enrichValueListResponse = new EnrichValueListResponse();

        return enrichValueListResponse;
    }

我已经有其他方法来接收字符串化对象的字符串，然后使用ServiceStack.Text中的JsonSerializer.DeserializeFromString方法，用这种方法可以很好地解决问题。我试图在原始请求中使用类型更强的对象（这可能是不可能的，或者我做错了）。

Param：NameValues，值{“ valuesToProcess”：[{“ name”：“ bob”，“ value”：“ Not Bob”}]}

并尝试我能想到的所有其他排列。有趣的是，当更改为纯字符串参数并发布时，内置的swagger API返回反序列化错误，但Postman很好。

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响应正文为文本

{
  "responseStatus": {
    "errorCode": "SerializationException",
    "message": "Type definitions should start with a '{', expecting serialized type 'EnrichValueList', got string starting with: \"two\"",
    "stackTrace": "   at ServiceStack.Text.Common.DeserializeTypeRefJson.StringToType(ReadOnlySpan`1 strType, TypeConfig typeConfig, EmptyCtorDelegate ctorFn, KeyValuePair`2[] typeAccessors)\r\n   at ServiceStack.Text.Common.DeserializeType`1.StringToTypeContext.DeserializeJson(ReadOnlySpan`1 value)\r\n   at ServiceStack.Text.Json.JsonReader.<>c__DisplayClass3_0.<GetParseSpanFn>b__0(ReadOnlySpan`1 v)\r\n   at ServiceStack.Text.JsonSerializer.DeserializeFromSpan(Type type, ReadOnlySpan`1 value)\r\n   at ServiceStack.Memory.NetCoreMemory.Deserialize(MemoryStream memoryStream, Boolean fromPool, Type type, DeserializeStringSpanDelegate deserializer)\r\n   at ServiceStack.Memory.NetCoreMemory.DeserializeAsync(Stream stream, Type type, DeserializeStringSpanDelegate deserializer)\r\n   at ServiceStack.Host.RestHandler.CreateRequestAsync(IRequest httpReq, IRestPath restPath, Dictionary`2 requestParams)\r\n   at ServiceStack.Host.RestHandler.CreateRequestAsync(IRequest httpReq, IRestPath restPath)\r\n   at ServiceStack.Host.RestHandler.ProcessRequestAsync(IRequest req, IResponse httpRes, String operationName)"
  }
}

邮递员

更新

按照的建议，我从装饰器中删除了ParameterType和DataType，并且能够表现出一些稍有不同的行为。

使用示例类：

public class NameValues
{
    public string Name { get; set; }
    public List<string> Values { get; set; }

    public NameValues()
    {
        Values = new List<string>();
        Name = string.Empty;
    }
}

public class NameValuesList
{

    public List<NameValues> ValuesToProcess { get; set; }

    public NameValuesList()
    {
        ValuesToProcess = new List<NameValues>();
    }

}

并将DTO参数设置为此

    [ApiMember(Name = "NameValues", Description = "A string that represents a value with which to understand more information about", IsRequired = true)]
    public NameValuesList NameValues
    {
        get;

        set;
    }

当我传入应该反序列化的JSON结构时，

会导致相同的反序列化错误。但是，如果传入一些变形的字符串，它不会引发任何错误，并且会一直运行到IPost处理程序方法，该属性为null。

如果我将API参数改回字符串，并使用此示例通过ServiceStack.Text库显示序列化和反序列化，则通过Swagger和Postman都像超级按钮一样工作。

    public async Task<EnrichValueListResponse> Post(EnrichValueList request)
    {
        EnrichValueListResponse enrichValueListResponse = new EnrichValueListResponse();

        // Create a dummy object to serialize as JSON to return as an example back to the caller
        NameValuesList stuff = new NameValuesList();
        stuff.ValuesToProcess.Add(new NameValues { Name = "first", Values = { "second", "third" } });
        enrichValueListResponse.BatchId = await Task.Run(() => stuff.ToJson().IndentJson());

        // Deserialize the inbound string
        NameValuesList betterStuff = JsonSerializer.DeserializeFromString<NameValuesList>(request.NameValues);

        return enrichValueListResponse;
    }

提交了JSON（尽管我确实尝试了许多不同的编码和结构变体）。

{
    "valuesToProcess": [
        {
            "name": "first",
            "values": [
                "second",
                "third"
            ]
        }
    ]
}

我已经设置了调试模式，但是在解析期间看不到SeriLog数据库的任何异常。现在，我将使用字符串参数运行并在事实之后进行反序列化。我可以在Fluent Validator中进行一些预检查