DeleteNamespacedService throws JsonException

[ryankmcintyre]

When calling DeleteNamespacedService (or DeleteNamespacedServiceAsync), result is:

System.Text.Json.JsonException: The JSON value could not be converted to k8s.Models.V1ServiceStatus. Path: $.status | LineNumber: 0 | BytePositionInLine: 67.

Although, the service is successfully deleted from the cluster.

Here's the code I'm using:

    public async void Delete()
    {
        var config = KubernetesClientConfiguration.BuildDefaultConfig();
        var client = new Kubernetes(config);

        await client.DeleteNamespacedServiceAsync(graphQLServiceName, namespaceName);
    }

Full exception stack:

{System.Text.Json.JsonException: The JSON value could not be converted to k8s.Models.V1ServiceStatus. Path: $.status | LineNumber: 0 | BytePositionInLine: 67.
   at System.Text.Json.ThrowHelper.ThrowJsonException_DeserializeUnableToConvertValue(Type propertyType)
   at System.Text.Json.Serialization.Converters.ObjectDefaultConverter`1.OnTryRead(Utf8JsonReader& reader, Type typeToConvert, JsonSerializerOptions options, ReadStack& state, T& value)
   at System.Text.Json.Serialization.JsonConverter`1.TryRead(Utf8JsonReader& reader, Type typeToConvert, JsonSerializerOptions options, ReadStack& state, T& value)
   at System.Text.Json.Serialization.Metadata.JsonPropertyInfo`1.ReadJsonAndSetMember(Object obj, ReadStack& state, Utf8JsonReader& reader)
   at System.Text.Json.Serialization.Converters.ObjectDefaultConverter`1.OnTryRead(Utf8JsonReader& reader, Type typeToConvert, JsonSerializerOptions options, ReadStack& state, T& value)
   at System.Text.Json.Serialization.JsonConverter`1.TryRead(Utf8JsonReader& reader, Type typeToConvert, JsonSerializerOptions options, ReadStack& state, T& value)
   at System.Text.Json.Serialization.JsonConverter`1.ReadCore(Utf8JsonReader& reader, JsonSerializerOptions options, ReadStack& state)
   at System.Text.Json.JsonSerializer.ReadCore[TValue](JsonConverter jsonConverter, Utf8JsonReader& reader, JsonSerializerOptions options, ReadStack& state)
   at System.Text.Json.JsonSerializer.ReadCore[TValue](JsonReaderState& readerState, Boolean isFinalBlock, ReadOnlySpan`1 buffer, JsonSerializerOptions options, ReadStack& state, JsonConverter converterBase)
   at System.Text.Json.JsonSerializer.ContinueDeserialize[TValue](ReadBufferState& bufferState, JsonReaderState& jsonReaderState, ReadStack& readStack, JsonConverter converter, JsonSerializerOptions options)
   at System.Text.Json.JsonSerializer.ReadAll[TValue](Stream utf8Json, JsonTypeInfo jsonTypeInfo)
   at System.Text.Json.JsonSerializer.ReadAllUsingOptions[TValue](Stream utf8Json, Type returnType, JsonSerializerOptions options)
   at System.Text.Json.JsonSerializer.Deserialize[TValue](Stream utf8Json, JsonSerializerOptions options)
   at k8s.KubernetesJson.Deserialize[TValue](Stream json)
   at k8s.Kubernetes.CreateResultAsync[T](HttpRequestMessage httpRequest, HttpResponseMessage httpResponse, Nullable`1 watch, CancellationToken cancellationToken)
   at k8s.Kubernetes.DeleteNamespacedServiceWithHttpMessagesAsync(String name, String namespaceParameter, V1DeleteOptions body, String dryRun, Nullable`1 gracePeriodSeconds, Nullable`1 orphanDependents, String propagationPolicy, Nullable`1 pretty, IDictionary`2 customHeaders, CancellationToken cancellationToken)
   at k8s.KubernetesExtensions.DeleteNamespacedServiceAsync(IKubernetes operations, String name, String namespaceParameter, V1DeleteOptions body, String dryRun, Nullable`1 gracePeriodSeconds, Nullable`1 orphanDependents, String propagationPolicy, Nullable`1 pretty, CancellationToken cancellationToken)
   at TestKubeClient.Controllers.GraphQLDeploymentController.Delete() in /home/blah/blah/blah/api/Controllers/GraphQLDeploymentController.cs:line 56}

[tg123]

may i know your server and client version

likely caused by swagger changed

[ryankmcintyre]

Client: 1.22.5
Server: 1.21.9

[tg123]

then it is a bug, I am looking into it

[tg123]

this is due to swagger change and be behavior is expected

1.21 and 1.22 DeleteService returns v1.Status (6.0 client sdk)
while in 1.23, DeleteService returns v1.Service (7.0+ client sdk)

search deleteCoreV1NamespacedService

https://raw.githubusercontent.com/kubernetes/kubernetes/v1.21.9/api/openapi-spec/swagger.json
vs
https://raw.githubusercontent.com/kubernetes/kubernetes/v1.23.0/api/openapi-spec/swagger.json

anyway, the backward compatibility seems a big headache. will test build multiple api def in future version.

[ryankmcintyre]

I saw that. Which seems odd to me, to have a delete method return an object of the type being deleted. Most of the other delete methods return a status, which seems more natural to me.

Since the delete still succeeds, I'll just catch the error and move on. Hopefully this becomes more consistent in the future.

[tg123]

close as it is by design