as far as I can see there is no support for batching within the Typescript version of JsonServiceClient (I can't find a method 'sendAll'). I expected this usefull feature since the documentation for Autobatching does not menention that this is not supported by the Typescript client.
Only the C#/.NET Clients have every Service Client feature, if you want features that don't exist added, add a feature request for it.
For anyone how also like to get this feature: Here you will find the feature request.
I've added support for new
sendAllOneWay APIs in this commit, which is available from v1.0.9 that's now on npm.