[英](422) Unprocessable Entity with ServiceStack Routing
I had a plan to connect to a JSON-based API using ServceStack's Routing features for C#.我计划使用 ServceStack 的 C# 的路由功能连接到基于 JSON 的 API。 It seems that I get a '422 Unprocessable Entity' when attempting to do so when, in reality I'm supposed to be getting a JSON response.似乎我在尝试这样做时得到了“422 Unprocessable Entity”,而实际上我应该得到 JSON 响应。 This error message is interesting though, since it repeats itself multiple times over (8 times exact) with the message Could not parse Error ResponseStatus ErrorResponse System.IndexOutOfRangeException: Index was outside the bounds of the array.不过,此错误消息很有趣,因为它会重复多次(精确 8 次),并显示消息无法解析错误响应状态错误响应系统.IndexOutOfRangeException:索引超出了数组的范围。 Full stack trace below.下面的完整堆栈跟踪。
I've tried many configurations, and there is one that 'works' but removes one of the key needs of the way this route is set up.我尝试了许多配置,其中一种“有效”但消除了这条路线设置方式的关键需求之一。 In this project, I use ICacheClient
to save a session key for 5 minutes, so I don't always need to call the API every time I need it.在这个项目中,我使用ICacheClient
保存了一个 session 密钥 5 分钟,所以我不需要每次需要时都调用 API。 Since ServiceStack uses injection to set my instance of ICacheClient
, it must be public.由于 ServiceStack 使用注入来设置我的ICacheClient
实例,因此它必须是公共的。 However, if it is public I get that 422 error, but if it isn't public I get a NullPointer because it's reference cannot be set by ServiceStack.但是,如果它是公共的,我会收到 422 错误,但如果它不是公共的,我会收到 NullPointer,因为它的引用不能由 ServiceStack 设置。
Here's my current setup:这是我当前的设置:
AppHost.cs应用主机.cs
public class AppHost : AppHostBase
{
public override void Configure(Container container)
{
Log.Info("Starting up...");
var stopwatch = Stopwatch.StartNew();
// Add Plugins
// Add Connection Strings
container.Register<ICacheClient>(new MemoryCacheClient());
container.RegisterAs<ApiClientWrapper, IApiClient>();
stopwatch.Stop();
Log.Info("Started in {ElapsedMilliseconds}ms", stopwatch.ElapsedMilliseconds);
}
}
ApiClientWrapper.cs ApiClientWrapper.cs
public class ApiClientWrapper : IApiClient
{
// These are set in a Web.config, and work fine.
private string Username => HostContext.AppSettings.Get<string>("Username");
private string Password => HostContext.AppSettings.Get<string>("Password");
private string ApiUrl => HostContext.AppSettings.Get<string>("ApiUrl");
// This must be public, NULL if private or internal
public ICacheClient Cache { get; set; }
private string GenerateAccessToken()
{
const string key = "ApiSessionKey";
var sessionKey = Cache.Get<string>(key);
if (sessionKey == null)
{
using(var client = new JsonServiceClient(ApiUrl))
{
var request = new LoginRequest
{
Username = Username,
Password = Password
};
// Token provided by API
sessionKey = client.Post(request).AccessToken;
}
Cache.Add(key, sessionKey, 5.Minutes());
}
return sessionKey;
}
internal JsonServiceClient Api => new JsonServiceClient(ApiUrl)
{
BearerToken = $"Bearer {GenerateAccessToken()}"
};
public List<Price> FindPrices(FindPrices request)
{
/*
* LatestPricesResponse DTO matches the expected JSON response.
* The class has the [DataContract] tag, and each property has the [DataMember] tag.
*/
var response = Api.Get(new LatestPricesRequest());
response = request.MaxRows.HasValue ? response.Take(request.MaxRows.Value).ToList() : response;
return response.ToDto();
}
[Route("/login", Verb.Post)]
[DataContract]
public class LoginRequest : IReturn<LoginResponse>, IPost
{
[DataMember(Name = "username")]
public string Username { get; set; }
[DataMember(Name = "password")]
public string Password { get; set; }
}
[Route("/latest_prices", Verb.Get)]
[DataContract]
public class LatestPricesRequest : IReturn<List<LatestPricesResponse>>, IGet
{
[DataMember(Name = "show_details")]
public string ShowDetails => "no";
}
}
Full Stacktrace:完整的堆栈跟踪:
2020-05-29 15:52:02.5996 ERROR DEVELOPER-PC ServiceStack.ServiceClientBase.ToWebServiceException System.Net.WebException: The remote server returned an error: (422) UNPROCESSABLE ENTITY.
at System.Net.HttpWebRequest.GetResponse()
at ServiceStack.ServiceClientBase.Send[TResponse](String httpMethod, String relativeOrAbsoluteUrl, Object request) in C:\BuildAgent\work\3481147c480f4a2f\src\ServiceStack.Client\ServiceClientBase.cs:line 1317 System.Net.WebException: The remote server returned an error: (422) UNPROCESSABLE ENTITY.
at System.Net.HttpWebRequest.GetResponse()
at ServiceStack.ServiceClientBase.Send[TResponse](String httpMethod, String relativeOrAbsoluteUrl, Object request) in C:\BuildAgent\work\3481147c480f4a2f\src\ServiceStack.Client\ServiceClientBase.cs:line 1317
2020-05-29 15:52:02.5996 DEBUG DEVELOPER-PC ServiceStack.ServiceClientBase.ToWebServiceException Status Code : 422
2020-05-29 15:52:02.5996 DEBUG DEVELOPER-PC ServiceStack.ServiceClientBase.ToWebServiceException Status Description : UNPROCESSABLE ENTITY
2020-05-29 15:52:02.6266 ERROR DEVELOPER-PC Api.AppHost.SetHostConfig An exception was thrown on "GET" for path "/prices" 422 UNPROCESSABLE ENTITY
Code: UNPROCESSABLE ENTITY, Message:
2020-05-29 15:52:02.6486 DEBUG DEVELOPER-PC ServiceStack.WebServiceException.get_ResponseStatus Could not parse Error ResponseStatus ErrorResponse System.IndexOutOfRangeException: Index was outside the bounds of the array.
at System.ThrowHelper.ThrowIndexOutOfRangeException()
at ServiceStack.Text.Jsv.JsvTypeSerializer.EatMapKey(ReadOnlySpan`1 value, Int32& i) in C:\BuildAgent\work\912418dcce86a188\src\ServiceStack.Text\Jsv\JsvTypeSerializer.cs:line 300
at ServiceStack.Text.Common.DeserializeTypeRefJsv.StringToType(ReadOnlySpan`1 strType, TypeConfig typeConfig, EmptyCtorDelegate ctorFn, KeyValuePair`2[] typeAccessors) in C:\BuildAgent\work\912418dcce86a188\src\ServiceStack.Text\Common\DeserializeTypeRefJsv.cs:line 40
at ServiceStack.Text.Common.DeserializeType`1.StringToTypeContext.DeserializeJsv(ReadOnlySpan`1 value) in C:\BuildAgent\work\912418dcce86a188\src\ServiceStack.Text\Common\DeserializeType.cs:line 60
at ServiceStack.Text.Jsv.JsvReader`1.Parse(ReadOnlySpan`1 value) in C:\BuildAgent\work\912418dcce86a188\src\ServiceStack.Text\Jsv\JsvReader.Generic.cs:line 102
at ServiceStack.Text.Jsv.JsvReader`1.Parse(String value) in C:\BuildAgent\work\912418dcce86a188\src\ServiceStack.Text\Jsv\JsvReader.Generic.cs:line 81
at ServiceStack.Text.TypeSerializer.DeserializeFromString[T](String value) in C:\BuildAgent\work\912418dcce86a188\src\ServiceStack.Text\TypeSerializer.cs:line 67
at ServiceStack.WebServiceException.get_ResponseStatus() in C:\BuildAgent\work\3481147c480f4a2f\src\ServiceStack.Client\WebServiceException.cs:line 70
2020-05-29 15:52:02.6486 DEBUG DEVELOPER-PC ServiceStack.WebServiceException.get_ResponseStatus Could not parse Error ResponseStatus ErrorResponse System.IndexOutOfRangeException: Index was outside the bounds of the array.
at System.ThrowHelper.ThrowIndexOutOfRangeException()
at ServiceStack.Text.Jsv.JsvTypeSerializer.EatMapKey(ReadOnlySpan`1 value, Int32& i) in C:\BuildAgent\work\912418dcce86a188\src\ServiceStack.Text\Jsv\JsvTypeSerializer.cs:line 300
at ServiceStack.Text.Common.DeserializeTypeRefJsv.StringToType(ReadOnlySpan`1 strType, TypeConfig typeConfig, EmptyCtorDelegate ctorFn, KeyValuePair`2[] typeAccessors) in C:\BuildAgent\work\912418dcce86a188\src\ServiceStack.Text\Common\DeserializeTypeRefJsv.cs:line 40
at ServiceStack.Text.Common.DeserializeType`1.StringToTypeContext.DeserializeJsv(ReadOnlySpan`1 value) in C:\BuildAgent\work\912418dcce86a188\src\ServiceStack.Text\Common\DeserializeType.cs:line 60
at ServiceStack.Text.Jsv.JsvReader`1.Parse(ReadOnlySpan`1 value) in C:\BuildAgent\work\912418dcce86a188\src\ServiceStack.Text\Jsv\JsvReader.Generic.cs:line 102
at ServiceStack.Text.Jsv.JsvReader`1.Parse(String value) in C:\BuildAgent\work\912418dcce86a188\src\ServiceStack.Text\Jsv\JsvReader.Generic.cs:line 81
at ServiceStack.Text.TypeSerializer.DeserializeFromString[T](String value) in C:\BuildAgent\work\912418dcce86a188\src\ServiceStack.Text\TypeSerializer.cs:line 67
at ServiceStack.WebServiceException.get_ResponseStatus() in C:\BuildAgent\work\3481147c480f4a2f\src\ServiceStack.Client\WebServiceException.cs:line 70
2020-05-29 15:52:02.6486 DEBUG DEVELOPER-PC ServiceStack.WebServiceException.get_ResponseStatus Could not parse Error ResponseStatus ErrorResponse System.IndexOutOfRangeException: Index was outside the bounds of the array.
at System.ThrowHelper.ThrowIndexOutOfRangeException()
at ServiceStack.Text.Jsv.JsvTypeSerializer.EatMapKey(ReadOnlySpan`1 value, Int32& i) in C:\BuildAgent\work\912418dcce86a188\src\ServiceStack.Text\Jsv\JsvTypeSerializer.cs:line 300
at ServiceStack.Text.Common.DeserializeTypeRefJsv.StringToType(ReadOnlySpan`1 strType, TypeConfig typeConfig, EmptyCtorDelegate ctorFn, KeyValuePair`2[] typeAccessors) in C:\BuildAgent\work\912418dcce86a188\src\ServiceStack.Text\Common\DeserializeTypeRefJsv.cs:line 40
at ServiceStack.Text.Common.DeserializeType`1.StringToTypeContext.DeserializeJsv(ReadOnlySpan`1 value) in C:\BuildAgent\work\912418dcce86a188\src\ServiceStack.Text\Common\DeserializeType.cs:line 60
at ServiceStack.Text.Jsv.JsvReader`1.Parse(ReadOnlySpan`1 value) in C:\BuildAgent\work\912418dcce86a188\src\ServiceStack.Text\Jsv\JsvReader.Generic.cs:line 102
at ServiceStack.Text.Jsv.JsvReader`1.Parse(String value) in C:\BuildAgent\work\912418dcce86a188\src\ServiceStack.Text\Jsv\JsvReader.Generic.cs:line 81
at ServiceStack.Text.TypeSerializer.DeserializeFromString[T](String value) in C:\BuildAgent\work\912418dcce86a188\src\ServiceStack.Text\TypeSerializer.cs:line 67
at ServiceStack.WebServiceException.get_ResponseStatus() in C:\BuildAgent\work\3481147c480f4a2f\src\ServiceStack.Client\WebServiceException.cs:line 70
2020-05-29 15:52:02.6686 DEBUG DEVELOPER-PC ServiceStack.WebServiceException.get_ResponseStatus Could not parse Error ResponseStatus ErrorResponse System.IndexOutOfRangeException: Index was outside the bounds of the array.
at System.ThrowHelper.ThrowIndexOutOfRangeException()
at ServiceStack.Text.Jsv.JsvTypeSerializer.EatMapKey(ReadOnlySpan`1 value, Int32& i) in C:\BuildAgent\work\912418dcce86a188\src\ServiceStack.Text\Jsv\JsvTypeSerializer.cs:line 300
at ServiceStack.Text.Common.DeserializeTypeRefJsv.StringToType(ReadOnlySpan`1 strType, TypeConfig typeConfig, EmptyCtorDelegate ctorFn, KeyValuePair`2[] typeAccessors) in C:\BuildAgent\work\912418dcce86a188\src\ServiceStack.Text\Common\DeserializeTypeRefJsv.cs:line 40
at ServiceStack.Text.Common.DeserializeType`1.StringToTypeContext.DeserializeJsv(ReadOnlySpan`1 value) in C:\BuildAgent\work\912418dcce86a188\src\ServiceStack.Text\Common\DeserializeType.cs:line 60
at ServiceStack.Text.Jsv.JsvReader`1.Parse(ReadOnlySpan`1 value) in C:\BuildAgent\work\912418dcce86a188\src\ServiceStack.Text\Jsv\JsvReader.Generic.cs:line 102
at ServiceStack.Text.Jsv.JsvReader`1.Parse(String value) in C:\BuildAgent\work\912418dcce86a188\src\ServiceStack.Text\Jsv\JsvReader.Generic.cs:line 81
at ServiceStack.Text.TypeSerializer.DeserializeFromString[T](String value) in C:\BuildAgent\work\912418dcce86a188\src\ServiceStack.Text\TypeSerializer.cs:line 67
at ServiceStack.WebServiceException.get_ResponseStatus() in C:\BuildAgent\work\3481147c480f4a2f\src\ServiceStack.Client\WebServiceException.cs:line 70
2020-05-29 15:52:02.6686 DEBUG DEVELOPER-PC ServiceStack.WebServiceException.get_ResponseStatus Could not parse Error ResponseStatus ErrorResponse System.IndexOutOfRangeException: Index was outside the bounds of the array.
at System.ThrowHelper.ThrowIndexOutOfRangeException()
at ServiceStack.Text.Jsv.JsvTypeSerializer.EatMapKey(ReadOnlySpan`1 value, Int32& i) in C:\BuildAgent\work\912418dcce86a188\src\ServiceStack.Text\Jsv\JsvTypeSerializer.cs:line 300
at ServiceStack.Text.Common.DeserializeTypeRefJsv.StringToType(ReadOnlySpan`1 strType, TypeConfig typeConfig, EmptyCtorDelegate ctorFn, KeyValuePair`2[] typeAccessors) in C:\BuildAgent\work\912418dcce86a188\src\ServiceStack.Text\Common\DeserializeTypeRefJsv.cs:line 40
at ServiceStack.Text.Common.DeserializeType`1.StringToTypeContext.DeserializeJsv(ReadOnlySpan`1 value) in C:\BuildAgent\work\912418dcce86a188\src\ServiceStack.Text\Common\DeserializeType.cs:line 60
at ServiceStack.Text.Jsv.JsvReader`1.Parse(ReadOnlySpan`1 value) in C:\BuildAgent\work\912418dcce86a188\src\ServiceStack.Text\Jsv\JsvReader.Generic.cs:line 102
at ServiceStack.Text.Jsv.JsvReader`1.Parse(String value) in C:\BuildAgent\work\912418dcce86a188\src\ServiceStack.Text\Jsv\JsvReader.Generic.cs:line 81
at ServiceStack.Text.TypeSerializer.DeserializeFromString[T](String value) in C:\BuildAgent\work\912418dcce86a188\src\ServiceStack.Text\TypeSerializer.cs:line 67
at ServiceStack.WebServiceException.get_ResponseStatus() in C:\BuildAgent\work\3481147c480f4a2f\src\ServiceStack.Client\WebServiceException.cs:line 70
2020-05-29 15:52:02.6686 DEBUG DEVELOPER-PC ServiceStack.WebServiceException.get_ResponseStatus Could not parse Error ResponseStatus ErrorResponse System.IndexOutOfRangeException: Index was outside the bounds of the array.
at System.ThrowHelper.ThrowIndexOutOfRangeException()
at ServiceStack.Text.Jsv.JsvTypeSerializer.EatMapKey(ReadOnlySpan`1 value, Int32& i) in C:\BuildAgent\work\912418dcce86a188\src\ServiceStack.Text\Jsv\JsvTypeSerializer.cs:line 300
at ServiceStack.Text.Common.DeserializeTypeRefJsv.StringToType(ReadOnlySpan`1 strType, TypeConfig typeConfig, EmptyCtorDelegate ctorFn, KeyValuePair`2[] typeAccessors) in C:\BuildAgent\work\912418dcce86a188\src\ServiceStack.Text\Common\DeserializeTypeRefJsv.cs:line 40
at ServiceStack.Text.Common.DeserializeType`1.StringToTypeContext.DeserializeJsv(ReadOnlySpan`1 value) in C:\BuildAgent\work\912418dcce86a188\src\ServiceStack.Text\Common\DeserializeType.cs:line 60
at ServiceStack.Text.Jsv.JsvReader`1.Parse(ReadOnlySpan`1 value) in C:\BuildAgent\work\912418dcce86a188\src\ServiceStack.Text\Jsv\JsvReader.Generic.cs:line 102
at ServiceStack.Text.Jsv.JsvReader`1.Parse(String value) in C:\BuildAgent\work\912418dcce86a188\src\ServiceStack.Text\Jsv\JsvReader.Generic.cs:line 81
at ServiceStack.Text.TypeSerializer.DeserializeFromString[T](String value) in C:\BuildAgent\work\912418dcce86a188\src\ServiceStack.Text\TypeSerializer.cs:line 67
at ServiceStack.WebServiceException.get_ResponseStatus() in C:\BuildAgent\work\3481147c480f4a2f\src\ServiceStack.Client\WebServiceException.cs:line 70
2020-05-29 15:52:02.6686 DEBUG DEVELOPER-PC ServiceStack.WebServiceException.get_ResponseStatus Could not parse Error ResponseStatus ErrorResponse System.IndexOutOfRangeException: Index was outside the bounds of the array.
at System.ThrowHelper.ThrowIndexOutOfRangeException()
at ServiceStack.Text.Jsv.JsvTypeSerializer.EatMapKey(ReadOnlySpan`1 value, Int32& i) in C:\BuildAgent\work\912418dcce86a188\src\ServiceStack.Text\Jsv\JsvTypeSerializer.cs:line 300
at ServiceStack.Text.Common.DeserializeTypeRefJsv.StringToType(ReadOnlySpan`1 strType, TypeConfig typeConfig, EmptyCtorDelegate ctorFn, KeyValuePair`2[] typeAccessors) in C:\BuildAgent\work\912418dcce86a188\src\ServiceStack.Text\Common\DeserializeTypeRefJsv.cs:line 40
at ServiceStack.Text.Common.DeserializeType`1.StringToTypeContext.DeserializeJsv(ReadOnlySpan`1 value) in C:\BuildAgent\work\912418dcce86a188\src\ServiceStack.Text\Common\DeserializeType.cs:line 60
at ServiceStack.Text.Jsv.JsvReader`1.Parse(ReadOnlySpan`1 value) in C:\BuildAgent\work\912418dcce86a188\src\ServiceStack.Text\Jsv\JsvReader.Generic.cs:line 102
at ServiceStack.Text.Jsv.JsvReader`1.Parse(String value) in C:\BuildAgent\work\912418dcce86a188\src\ServiceStack.Text\Jsv\JsvReader.Generic.cs:line 81
at ServiceStack.Text.TypeSerializer.DeserializeFromString[T](String value) in C:\BuildAgent\work\912418dcce86a188\src\ServiceStack.Text\TypeSerializer.cs:line 67
at ServiceStack.WebServiceException.get_ResponseStatus() in C:\BuildAgent\work\3481147c480f4a2f\src\ServiceStack.Client\WebServiceException.cs:line 70
2020-05-29 15:52:02.6736 DEBUG DEVELOPER-PC ServiceStack.WebServiceException.get_ResponseStatus Could not parse Error ResponseStatus ErrorResponse System.IndexOutOfRangeException: Index was outside the bounds of the array.
at System.ThrowHelper.ThrowIndexOutOfRangeException()
at ServiceStack.Text.Jsv.JsvTypeSerializer.EatMapKey(ReadOnlySpan`1 value, Int32& i) in C:\BuildAgent\work\912418dcce86a188\src\ServiceStack.Text\Jsv\JsvTypeSerializer.cs:line 300
at ServiceStack.Text.Common.DeserializeTypeRefJsv.StringToType(ReadOnlySpan`1 strType, TypeConfig typeConfig, EmptyCtorDelegate ctorFn, KeyValuePair`2[] typeAccessors) in C:\BuildAgent\work\912418dcce86a188\src\ServiceStack.Text\Common\DeserializeTypeRefJsv.cs:line 40
at ServiceStack.Text.Common.DeserializeType`1.StringToTypeContext.DeserializeJsv(ReadOnlySpan`1 value) in C:\BuildAgent\work\912418dcce86a188\src\ServiceStack.Text\Common\DeserializeType.cs:line 60
at ServiceStack.Text.Jsv.JsvReader`1.Parse(ReadOnlySpan`1 value) in C:\BuildAgent\work\912418dcce86a188\src\ServiceStack.Text\Jsv\JsvReader.Generic.cs:line 102
at ServiceStack.Text.Jsv.JsvReader`1.Parse(String value) in C:\BuildAgent\work\912418dcce86a188\src\ServiceStack.Text\Jsv\JsvReader.Generic.cs:line 81
at ServiceStack.Text.TypeSerializer.DeserializeFromString[T](String value) in C:\BuildAgent\work\912418dcce86a188\src\ServiceStack.Text\TypeSerializer.cs:line 67
at ServiceStack.WebServiceException.get_ResponseStatus() in C:\BuildAgent\work\3481147c480f4a2f\src\ServiceStack.Client\WebServiceException.cs:line 70
Thanks for taking a look, everyone!谢谢大家观看!
The problem was caused by the following issue: - The 3rd-party provider automatically adds "Bearer" before your token.该问题是由以下问题引起的: - 第三方提供商会在您的令牌前自动添加“Bearer”。
This snippet:这个片段:
internal JsonServiceClient Api => new JsonServiceClient(ApiUrl)
{
BearerToken = $"Bearer {GenerateAccessToken()}"
};
Was changed to:改为:
internal JsonServiceClient Api => new JsonServiceClient(ApiUrl)
{
BearerToken = GenerateAccessToken()
};
To solve the problem.解决问题。 What I was initially generating was "Bearer Bearer (token)", which is why I would get a 422 UNPROCESSABLE ENTITY (sending the wrong data).我最初生成的是“Bearer Bearer (token)”,这就是为什么我会得到一个 422 UNPROCESSABLE ENTITY(发送错误的数据)。
Thanks for the help, everyone!谢谢大家的帮助!
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