[QLDB] Unable to create QLDB Stream in .NET

I am getting an error creating a QLDB Stream from CDK using .NET. The CfnStream class requires a InclusiveStartTime property of type string, which is a UTC date in ISO8601 format. ex: 2019-11-05T13:15:30Z.

I am using the following code to get to this format but I have also tried specifying a regular string in the correct format. It didn’t work either.

InclusiveStartTime = $"{DateTime.UtcNow.ToString("s")}Z"

This is the exception I am getting.

Unhandled exception. Amazon.JSII.Runtime.JsiiException: Resolution error: System.ArgumentException: Value has unexpected token type Date (Parameter 'value')

I tried replicating the same CDK stack using TypeScript and it worked.

Reproduction Steps

namespace Cdk
{
    public class MyStack : Stack
    {
        internal MyStack(Construct scope, string id, IStackProps props = null) : base(scope, id, props)
        {
            CfnLedger qldb = new CfnLedger(this, "myLedger", new CfnLedgerProps{
                Name = "myLedger",
                PermissionsMode = "ALLOW_ALL"
            });

            Role QldbToKinesisRole = new Role(this, "qldbToKinesisRole", new RoleProps{
                RoleName = "QldbToKinesisRole",
                AssumedBy = new ServicePrincipal("qldb.amazonaws.com")
            });

            QldbToKinesisRole.AddManagedPolicy(ManagedPolicy.FromAwsManagedPolicyName("AmazonKinesisFullAccess"));

            Stream qldbStream = new Stream(this, "qldbStream", new StreamProps{
                StreamName = "MyKinesisStream",
                ShardCount = 1
            });
            
            Amazon.CDK.AWS.QLDB.CfnStream qldbStreamConfig = new Amazon.CDK.AWS.QLDB.CfnStream(this, "qldbStreamConfig", new Amazon.CDK.AWS.QLDB.CfnStreamProps{
                LedgerName = "myLedger",
                StreamName = "MyKinesisStream",
                InclusiveStartTime = $"{DateTime.UtcNow.ToString("s")}Z",
                RoleArn = QldbToKinesisRole.RoleArn,
                KinesisConfiguration = new Amazon.CDK.AWS.QLDB.CfnStream.KinesisConfigurationProperty{
                    AggregationEnabled = true,
                    StreamArn = qldbStream.StreamArn
                } 
            });
        }
    }
}

What did you expect to happen?

I expected the cdk deploy command to succeed.

What actually happened?

Unhandled exception. Amazon.JSII.Runtime.JsiiException: Resolution error: System.ArgumentException: Value has unexpected token type Date (Parameter 'value')
   at Amazon.JSII.Runtime.Services.Converters.JsiiToFrameworkConverter.InferType(IReferenceMap referenceMap, Object value)
   at Amazon.JSII.Runtime.Services.Converters.ValueConverter.ConvertAny(Type type, IReferenceMap referenceMap, Object value)
   at Amazon.JSII.Runtime.Services.Converters.ValueConverter.TryConvertPrimitive(Type type, IReferenceMap referenceMap, Object value, Boolean isOptional, PrimitiveType primitiveType, Object& result)
   at Amazon.JSII.Runtime.Services.Converters.ValueConverter.TryConvert(IOptionalValue optionalValue, Type type, IReferenceMap referenceMap, Object value, Object& result)
   at Amazon.JSII.Runtime.Services.Converters.JsiiToFrameworkConverter.TryConvertMap(IReferenceMap referenceMap, TypeReference elementTypeInstance, Object value, Object& result)
   at Amazon.JSII.Runtime.Services.Converters.ValueConverter.TryConvertCollection(IReferenceMap referenceMap, Object value, Boolean isOptional, CollectionTypeReference collectionType, Object& result)
   at Amazon.JSII.Runtime.Services.Converters.ValueConverter.TryConvert(IOptionalValue optionalValue, Type type, IReferenceMap referenceMap, Object value, Object& result)
   at Amazon.JSII.Runtime.CallbackExtensions.<>c__DisplayClass2_0.<InvokeMethod>b__0(Int32 n)
   at System.Linq.Enumerable.SelectRangeIterator`1.ToArray()
   at System.Linq.Enumerable.ToArray[TSource](IEnumerable`1 source)
   at Amazon.JSII.Runtime.CallbackExtensions.InvokeMethod(InvokeRequest request, IReferenceMap referenceMap)
   at Amazon.JSII.Runtime.CallbackExtensions.InvokeCallbackCore(Callback callback, IReferenceMap referenceMap)
   at Amazon.JSII.Runtime.CallbackExtensions.InvokeCallback(Callback callback, IReferenceMap referenceMap, IFrameworkToJsiiConverter converter, String& error).
   at Amazon.JSII.Runtime.Services.Client.TryDeserialize[TResponse](String responseJson)
   at Amazon.JSII.Runtime.Services.Client.ReceiveResponse[TResponse]()
   at Amazon.JSII.Runtime.Services.Client.Send[TRequest,TResponse](TRequest requestObject)
   at Amazon.JSII.Runtime.Services.Client.TryDeserialize[TResponse](String responseJson)
   at Amazon.JSII.Runtime.Services.Client.ReceiveResponse[TResponse]()
   at Amazon.JSII.Runtime.Services.Client.Send[TRequest,TResponse](TRequest requestObject)
   at Amazon.JSII.Runtime.Services.Client.TryDeserialize[TResponse](String responseJson)
   at Amazon.JSII.Runtime.Services.Client.ReceiveResponse[TResponse]()
   at Amazon.JSII.Runtime.Services.Client.Send[TRequest,TResponse](TRequest requestObject)
   at Amazon.JSII.Runtime.Services.Client.TryDeserialize[TResponse](String responseJson)
   at Amazon.JSII.Runtime.Services.Client.ReceiveResponse[TResponse]()
   at Amazon.JSII.Runtime.Services.Client.Send[TRequest,TResponse](TRequest requestObject)
   at Amazon.JSII.Runtime.Services.Client.TryDeserialize[TResponse](String responseJson)
   at Amazon.JSII.Runtime.Services.Client.ReceiveResponse[TResponse]()
   at Amazon.JSII.Runtime.Services.Client.Send[TRequest,TResponse](TRequest requestObject)
   at Amazon.JSII.Runtime.Services.Client.TryDeserialize[TResponse](String responseJson)
   at Amazon.JSII.Runtime.Services.Client.ReceiveResponse[TResponse]()
   at Amazon.JSII.Runtime.Services.Client.Send[TRequest,TResponse](TRequest requestObject)
   at Amazon.JSII.Runtime.Services.Client.TryDeserialize[TResponse](String responseJson)
   at Amazon.JSII.Runtime.Services.Client.ReceiveResponse[TResponse]()
   at Amazon.JSII.Runtime.Services.Client.Send[TRequest,TResponse](TRequest requestObject)
   at Amazon.JSII.Runtime.Services.Client.TryDeserialize[TResponse](String responseJson)
   at Amazon.JSII.Runtime.Services.Client.ReceiveResponse[TResponse]()
   at Amazon.JSII.Runtime.Services.Client.Send[TRequest,TResponse](TRequest requestObject)
   at Amazon.JSII.Runtime.Services.Client.TryDeserialize[TResponse](String responseJson)
   at Amazon.JSII.Runtime.Services.Client.ReceiveResponse[TResponse]()
   at Amazon.JSII.Runtime.Services.Client.Send[TRequest,TResponse](TRequest requestObject)
   at Amazon.JSII.Runtime.Services.Client.TryDeserialize[TResponse](String responseJson)
   at Amazon.JSII.Runtime.Services.Client.ReceiveResponse[TResponse]()
   at Amazon.JSII.Runtime.Services.Client.Send[TRequest,TResponse](TRequest requestObject)
   at Amazon.JSII.Runtime.Services.Client.TryDeserialize[TResponse](String responseJson)
   at Amazon.JSII.Runtime.Services.Client.ReceiveResponse[TResponse]()
   at Amazon.JSII.Runtime.Services.Client.Send[TRequest,TResponse](TRequest requestObject)
   at Amazon.JSII.Runtime.Services.Client.TryDeserialize[TResponse](String responseJson)
   at Amazon.JSII.Runtime.Services.Client.ReceiveResponse[TResponse]()
   at Amazon.JSII.Runtime.Services.Client.Send[TRequest,TResponse](TRequest requestObject)
   at Amazon.JSII.Runtime.Services.Client.TryDeserialize[TResponse](String responseJson)
   at Amazon.JSII.Runtime.Services.Client.ReceiveResponse[TResponse]()
   at Amazon.JSII.Runtime.Services.Client.Send[TRequest,TResponse](TRequest requestObject)
   at Amazon.JSII.Runtime.Services.Client.TryDeserialize[TResponse](String responseJson)
   at Amazon.JSII.Runtime.Services.Client.ReceiveResponse[TResponse]()
   at Amazon.JSII.Runtime.Services.Client.Send[TRequest,TResponse](TRequest requestObject)
   at Amazon.JSII.Runtime.Services.Client.TryDeserialize[TResponse](String responseJson)
   at Amazon.JSII.Runtime.Services.Client.ReceiveResponse[TResponse]()
   at Amazon.JSII.Runtime.Services.Client.Send[TRequest,TResponse](TRequest requestObject)
   at Amazon.JSII.Runtime.Services.Client.Invoke(InvokeRequest request)
   at Amazon.JSII.Runtime.Services.Client.Invoke(ObjectReference objectReference, String method, Object[] arguments)
   at Amazon.JSII.Runtime.Deputy.DeputyBase.<>c__DisplayClass17_0`1.<InvokeInstanceMethod>b__1(IClient client, Object[] args)
   at Amazon.JSII.Runtime.Deputy.DeputyBase.<InvokeMethodCore>g__GetResult|18_0[T](<>c__DisplayClass18_0`1& )
   at Amazon.JSII.Runtime.Deputy.DeputyBase.InvokeMethodCore[T](JsiiMethodAttribute methodAttribute, Object[] arguments, Func`3 beginFunc, Func`3 invokeFunc)
   at Amazon.JSII.Runtime.Deputy.DeputyBase.InvokeInstanceMethod[T](Type[] parameterTypes, Object[] arguments, String methodName)
   at Amazon.CDK.Stage.Synth(IStageSynthesisOptions options)
   at Cdk.Program.Main(String[] args) in /Users/tiagobar/Documents/GitHub/eventsourcing-qldb/cdk/src/Cdk/Program.cs:line 14
Subprocess exited with error 134

Environment

• CLI Version : aws-cli/2.0.34 Python/3.7.4 Darwin/19.6.0 botocore/2.0.0dev38
• Framework Version: 1.64.0 (build 9510201)
• OS : MacOs
• Language (Version): netcoreapp3.1

Other

I see that there are other issues that seem related to this one 7392 and 5317

---

This is 🐛 Bug Report

[RomainMuller]

My assumption was confirmed and I am looking to release the fix today 🎉

[peron]

I see you got around this quickly! So my answer might not be that important anymore, but yes, we also use .NET.

Since the problem occurred during synthesis, we ended up doing this in the stack file:

InclusiveStartTime = "<replace-me>"

and ended Program.Main with

app.Synth();

var fileName = $"./cdk.out/{stackName}.template.json";
var fileContents = File.ReadAllText(fileName);
fileContents = fileContents.Replace("<replace-me>", "2012-04-23T18:25:00Z");
File.WriteAllText(fileName, fileContents);

and that worked for us.