Google.Cloud.Datastore.V1 channel creation error under CoreRT

[hhblaze]

Environment details

• OS: Windows 10
• .NET version: CoreRT from .NetCore 2.2
• Package name and version: Google.Cloud.Datastore.V1 2.1.0

Steps to reproduce

1. Everything works and runs in standard managed environment. Everything compiles in CoreRT. But when native (CoreRT) runs it shows following problems at this place:

Code of DataStore initialization:

static DatastoreDb gdb;
public static void InitDataStore()
        {
            try
            {

                var credential = Google.Apis.Auth.OAuth2.GoogleCredential.FromJson(GetGCS())
                  .CreateScoped(DatastoreClient.DefaultScopes);

//On the next line (while creating channel) will be thrown exception
                var channel = new Grpc.Core.Channel(DatastoreClient.DefaultEndpoint.ToString(), credential.ToChannelCredentials());

                gdb = DatastoreDb.Create(datastore_projectId, datastore_namespace, DatastoreClient.Create(channel));

Here is a screenshot of the exception:

[jskeet]

It sounds like this is a bug that should be filed in Grpc.Core, given that the problem is within GrpcEnvironment.GrpcNativeInit. But fundamentally, we don't support CoreRT at the moment. The gRPC team may well be interested in making it work, which would at least be a pre-requisite for our code working.

I suggest you put together a minimal example (which wouldn't need to use Datastore at all - it only needs to call the Channel constructor) and post it in the gRPC repository.

[hhblaze]

ok, thank you!