Open the Alexa Developer Console and create a new skill:
Be sure to select the custom model and Start from scratch in the following step.
Then you have to pickup the invocation name, it the name of your chatbot that will answer to sentences like “Alexa, ask my-chatbot-name to …”.
Alexa needs a callback to send the requests to: it must be a https endpoint (a self signed certificate it’s not enough). For testing we’ll use ngrok to create a https tunnel for our local Node-RED instance. Install it, then open a shell window and run
ngrok http 127.0.0.1:1880
You should get something like
Grab the https address you get, something like https://123123.ngrok.io, this is the base url that points back to your Node-RED instance.
The callback is
This callback should fill the field Default region in the Endpoint session
We’re ready to create the first simple flow: