Actions On Google API.AI fulfillment server on AWS lambda

Example that shows you how to run a Google Home skill fulfillment on an AWS lambda (Blasphemy!)

The problem

Wouldn't it be nice if Google's Google Assistant SDK for NodeJS decoupled the request handling from Express so you can use the assistant SDK in a simple AWS lambda microservice? I wonder why is Google not rushing to implement it (rhetorical question)... Well, my friend! You came to the right place. With the help of the express-mocks-http module you can fool the SDK into believing it is handling an Express call.

Tools you need

• node tools (npm)
• https://bespoken.io (bst)

Installation

Clone the repo:

$ git clone https://github.com/OpenDog/actions-on-aws.git

Initial setup:

$ npm install

Run a lambda test with the bespoken bst proxy

$ bst proxy lambda index.js

Now you can use the url bst gives you as the fulfillment url in your API.AI setup...

... or if you are impatient you can throw a launch request at the url with curl

$ curl -X POST \
  https://<bst-id>.bespoken.link/ \
  -H 'cache-control: no-cache' \
  -H 'content-type: application/json' \
  -d '{
	"originalRequest": {
		"source": "google",
		"data": {
			"surface": {
				"capabilities": []
			},
			"inputs": [{
				"arguments": [{
					"text_value": "1",
					"name": "is_health_check"
				}],
				"intent": "assistant.intent.action.MAIN",
				"raw_inputs": [{
					"query": "talk to google on amazon",
					"annotation_sets": []
				}]
			}],
			"user": {
				"user_id": "1491343035545"
			},
			"conversation": {
				"conversation_id": "1491343035545",
				"type": 1
			}
		}
	},
	"id": "e768f22a-bc23-4353-8f8e-886508caae7a",
	"timestamp": "2017-04-04T21:57:15.706Z",
	"lang": "en",
	"result": {
		"source": "agent",
		"resolvedQuery": "GOOGLE_ASSISTANT_WELCOME",
		"speech": "",
		"action": "LaunchRequest",
		"actionIncomplete": false,
		"parameters": {},
		"contexts": [{
			"name": "google_assistant_welcome",
			"parameters": {},
			"lifespan": 0
		}],
		"metadata": {
			"intentId": "cec07958-9e1e-63c1-a0f4-2bb4c3038f8b",
			"webhookUsed": "true",
			"webhookForSlotFillingUsed": "false",
			"intentName": "Initial intent LaunchIntent"
		},
		"fulfillment": {
			"speech": "",
			"messages": [{
				"type": 0,
				"speech": ""
			}]
		},
		"score": 1
	},
	"status": {
		"code": 200,
		"errorType": "success"
	},
	"sessionId": "1491343035545"
}'