Source Request undefined when using the playground from Dialogflow

[aurelienbouteiller]

It happens in the sendResponse_ method.
buildResponseMessages()_ return null because of the undefined platform. It receives the platform name by parsing the request.body.originalDetectIntentRequest.
When using the "Try it now" functionality, it doesn't send anything about the platform.
The platform should be called something like "playground" or "dialogflow"

[mattcarrollcode]

the Dialogflow simulator (what you called the "playground") doesn't include a platform name in the request, so this would need to be implemented in Dialogflow's backend. Most platforms include a platform name in the request so, depending on how your agent is setup and how you access your agent a potential workaround is to assume a null platform name means the request is coming from the Dialogflow simulator.

I'll consider adding a playground/dialgoflow platform name in the future and leave this open for further comments.