Unexpected character encountered while parsing value: <. Path '', line 0, position 0.

[ooples]

Is there an existing issue for this?

• [X] I have searched the existing issues

Current Behavior

I'm suddenly getting this error when using the latest prerelease version. The line 2070 that it references at is Console.WriteLine(ex.Message)

Full stacktrace:

Exception Type:
Alpaca.Markets.RestClientErrorException

Exception Message:
Internal Server Error

Exception StackTrace:
   at Alpaca.Markets.HttpResponseMethodExtensions.DeserializeAsync[TApi,TJson](HttpResponseMessage response)
   at Alpaca.Markets.HttpResponseMethodExtensions.DeserializeAsync[TApi,TJson](HttpResponseMessage response)
   at Alpaca.Markets.HttpClientExtensions.callAndDeserializeAsync[TApi,TJson](HttpClient httpClient, HttpRequestMessage request, CancellationToken cancellationToken)
   at Alpaca.Markets.HttpClientExtensions.callAndDeserializeAsync[TApi,TJson](HttpClient httpClient, HttpMethod method, Uri endpointUri, CancellationToken cancellationToken)
   at OoplesFinanceAdminClient.AlpacaApi.GetTopLevelInfo() in E:\OoplesFinanceAdminClient\OoplesFinanceAdminClient\AlpacaApi.cs:line 2070

Exception Target Site:
MoveNext

Exception Source:
Alpaca.Markets

Exception HResult:
-2146233088

Unexpected character encountered while parsing value: <. Path '', line 0, position 0.

   at Newtonsoft.Json.JsonTextReader.ParseValue()
   at Newtonsoft.Json.JsonReader.ReadForType(JsonContract contract, Boolean hasConverter)
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.Deserialize(JsonReader reader, Type objectType, Boolean checkAdditionalContent)
   at Newtonsoft.Json.JsonSerializer.DeserializeInternal(JsonReader reader, Type objectType)
   at Newtonsoft.Json.JsonSerializer.Deserialize[T](JsonReader reader)
   at Alpaca.Markets.HttpResponseMethodExtensions.getException(HttpResponseMessage response, JsonReader reader)

Expected Behavior

No response

Steps To Reproduce

No response

Environment

SDK Version: 6.0.6
OS (version, bitness): Windows 10
.NET SDK (version): 6.0
target process .NET version/bitness: 6.0 x64

Anything else?

No response

[OlegRa]

It's not an error in SDK. The server returns the HTTP 500 status and HTML body. The SDK tries to parse response content but has no success - the resulting exception contains information about the original HTTP response and parsing failure. But I agree - in most cases, users just want to see the HTTP-related error this case so in the next versions of SDK I'll change the approach for throwing exceptions in such cases.

[OlegRa]

@ooples This change can be tested in versions 5.3.6 and 6.0.1-beta1 of the SDK.

[OlegRa]

I'll close it for now. You can re-open it if the problem wasn't resolved on your side.