Hi folks,
From the time that Nick announced the Messaging hooks framework, my fingers have been itching to experiment with it. So fascinating stuff. But unfortunately I never had time for it ...
Started my first experiment tonight, but I am a bit confused.
While the onReceiveEvent is a plain object, the onSendEvent seems to be an array:
Perhaps I am misinterpreting the documentation incorrectly, but that looks to me also like a single plain object.
Might this be related to the case where a node has multiple outputs or something like that?
Thanks!!
Bart
The description of the onSend event explains here: Messaging Hooks : Node-RED
The hook is passed an array of SendEvent objects. The messages inside these objects are exactly what the node has passed to node.send - meaning there could be duplicate references to the same message object.
In other words, a single call to node.send() might contain multiple messages, and will trigger a single onSend event with all of those messages provided in the array of SendEvent objects.
Ok thanks Nick! That is clear.
I was first confused because there where no square brackets in the json example. But of course that shows the content of a single event object... And I had overlooked that part in the written documentation, which indeed explains it very well.
