Posts by jdhoffman

Any idea when the Node-RED extension will be released? I see the source code but there are not any releases and it does not appear in NPM.

Good tip! I was unable to build from source and this fixed my issues.

+1 for wanting Python 3 support

thanks

Ok, I think I understand. So I would probably only use this if I wanted to use wildcards?

I have a question about the subscribe method.

I am building a sample that receives events and the add_event_callback method has the option of subscribing to the topic. So why would I ever need to use subscribe?

The subscribe method has the following code as an example

The text says "By default when registering an event callback the client will automatically subscribe to the topic. In this example the dxlclient.client.DxlClient.add_event_callback() method is invoked with the subscribe_to_topic parameter set to False preventing the automatic subscription."

If the add event callback does this why do I need subscribe?

Ok, great. I will take a look at the service registry.

thanks

Ok, got it, thanks. A couple additional questions:

Are there plans to integrate the service conversation model into the client?

It looks like the service is still selected round robin. Is there a way to select the service to call? For example I may have multiple versions of a product on the fabric. Is it possible to select the one to use?

thanks

Ok, thanks, I think I understand.

One related question. Is it possible to support multiple instances of a session based service? It sounds like they round robin without having zones. Can I use zones to prevent clients from calling to another instance on the fabric? Or is there another way to create a conversation-based client with a service?

I have been reading through the getting started guide and I think I understand how the two message models work.

However, I had a quick question about the services. It sounds like topics are mapped to a service. Topics define the "methods" that are exposed by the service. So, my question is, what happens if I start two instances of the same service? When someone sends a message, does it go to both services and then get two responses? Does the last service started win, making the other service non-functional?

Jeff