Help with GremlinNetSample

[Gary Klaus]

Hi folks,  

I want to use the Azure Cosmos DB Gremlin sample code with the latest version of Gremlin.Net.  I upgraded Gremlin.Net to 3.6.0 and changed the constructor call to look like this.

new GremlinClient( gremlinServer,
                new GraphSON2MessageSerializer(),
                connectionPoolSettings,
                webSocketConfiguration)

But when I run it and it gets to this line
     string output = JsonConvert.SerializeObject(result);

it throws this exception.  

     "JSON type not supported. (Parameter 'ValueKind')\r\nActual value was Number."

Does anyone know how I should be deserializing the result of that request?

[Florian Hockmann]

Cosmos DB unfortunately does not support TinkerPop versions 3.5.0 or higher: https://docs.microsoft.com/en-us/azure/cosmos-db/graph/gremlin-support#compatible-client-libraries

So, you need to stay on Gremlin.NET 3.4.13 until they support at least TinkerPop 3.5.0.