Unable to get cart via /dwapi/ecommerce/carts/{secret} after adding product to cart after upgrading to 9.13.3

Hi DW,

As the title says, after upgrading to 9.13.3, we get this error when trying to get the cart via dwapi after you a product to the cart.
It's just on my locale machine so i don't have a site to reference to.
{
    "Message": "An error has occurred.",
    "ExceptionMessage": "The 'ObjectContent`1' type failed to serialize the response body for content type 'application/json; charset=utf-8'.",
    "ExceptionType": "System.InvalidOperationException",
    "StackTrace": null,
    "InnerException": {
        "Message": "An error has occurred.",
        "ExceptionMessage": "Error getting value from 'OrderLines' on 'Dynamicweb.Ecommerce.Frontend.OrderViewModel'.",
        "ExceptionType": "Newtonsoft.Json.JsonSerializationException",
        "StackTrace": "   at Newtonsoft.Json.Serialization.DynamicValueProvider.GetValue(Object target)\r\n   at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.CalculatePropertyValues(JsonWriter writer, Object value, JsonContainerContract contract, JsonProperty member, JsonProperty property, JsonContract& memberContract, Object& memberValue)\r\n   at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.SerializeObject(JsonWriter writer, Object value, JsonObjectContract contract, JsonProperty member, JsonContainerContract collectionContract, JsonProperty containerProperty)\r\n   at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.Serialize(JsonWriter jsonWriter, Object value, Type objectType)\r\n   at Newtonsoft.Json.JsonSerializer.SerializeInternal(JsonWriter jsonWriter, Object value, Type objectType)\r\n   at System.Net.Http.Formatting.BaseJsonMediaTypeFormatter.WriteToStream(Type type, Object value, Stream writeStream, Encoding effectiveEncoding)\r\n   at System.Net.Http.Formatting.JsonMediaTypeFormatter.WriteToStream(Type type, Object value, Stream writeStream, Encoding effectiveEncoding)\r\n   at System.Net.Http.Formatting.BaseJsonMediaTypeFormatter.WriteToStreamAsync(Type type, Object value, Stream writeStream, HttpContent content, TransportContext transportContext, CancellationToken cancellationToken)\r\n--- End of stack trace from previous location where exception was thrown ---\r\n   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()\r\n   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n   at System.Web.Http.WebHost.HttpControllerHandler.<WriteBufferedResponseContentAsync>d__1b.MoveNext()",
        "InnerException": {
            "Message": "An error has occurred.",
            "ExceptionMessage": "Object reference not set to an instance of an object.",
            "ExceptionType": "System.NullReferenceException",
            "StackTrace": "   at Dynamicweb.Ecommerce.ProductCatalog.ViewEngine.<>c__DisplayClass1_1.<BulkCreateView>b__2()\r\n   at Dynamicweb.Ecommerce.ProductCatalog.ViewModelPropertyFiller`1.Fill[S](T model, String propertyName, Func`1 source)\r\n   at Dynamicweb.Ecommerce.ProductCatalog.ViewEngine.BulkCreateView(OrderLineViewModelSettings settings, IEnumerable`1 orderLines)\r\n   at System.Lazy`1.CreateValue()\r\n   at System.Lazy`1.LazyInitValue()\r\n   at GetOrderLines(Object )\r\n   at Newtonsoft.Json.Serialization.DynamicValueProvider.GetValue(Object target)"
        }
    }
}



We had no problem getting the cart before adding a product to it.

The steps i did to create this error was:
Create cart via: /dwapi/ecommerce/carts?CurrencyCode=DKK&CountryCode=DK&LanguageId=LANG1

Add product with: /dwapi/ecommerce/carts/afe44123155a4433bdc339d52d8ff8c8/items/ with the body

{
    "ProductId": "SGK070",
    "ProductVariantId": "SP10642.SP5786",
    "Quantity": 1
}
Get cart via  /dwapi/ecommerce/carts/afe44123155a4433bdc339d52d8ff8c8/.

And then the error occurs



I tried creating a cart through our normal shop, adding a random product and then accessing the cart via the endpoint and the same error occurs aswell.



Hope you can help us sort it out.

 


Best regards,

Mikkel
Developer forum

Unable to get cart via /dwapi/ecommerce/carts/{secret} after adding product to cart after upgrading to 9.13.3

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