Node-RED Q&A plus Twilio SMS Demo

flow.json

[{
	"id": "546be34d.bd9d64",
	"type": "watson-question-answer",
	"name": "",
	"output": "top",
	"corpus": "healthcare",
	"x": 377,
	"y": 115,
	"z": "45fca0cc.ba036",
	"wires": [
		["603748a2.f78d5"]
	]
}, {
	"id": "603748a2.f78d5",
	"type": "switch",
	"name": "Check Confidence",
	"property": "confidence",
	"rules": [{
		"t": "gte",
		"v": ".35"
	}, {
		"t": "else"
	}],
	"checkall": "false",
	"outputs": 2,
	"x": 144,
	"y": 209,
	"z": "45fca0cc.ba036",
	"wires": [
		["ccac57c6.9db9f"],
		["3158bd80.e62d62"]
	]
}, {
	"id": "3158bd80.e62d62",
	"type": "function",
	"name": "Assign 'not sure' message",
	"func": "// Assign a 'not sure' message\nmsg.payload = 'Sorry, I\\'m not sure about the answer to that question.'\n\nreturn msg;",
	"outputs": 1,
	"noerr": 0,
	"x": 276,
	"y": 281,
	"z": "45fca0cc.ba036",
	"wires": [
		["ccac57c6.9db9f"]
	]
}, {
	"id": "ccac57c6.9db9f",
	"type": "function",
	"name": "Convert to SMS length",
	"func": "/* If the message has more than 160 characters\n   truncate it and add elipses */\nvar responseBody = msg.payload; \nif(responseBody.length > 160){\n    responseBody = responseBody.substr(0,157) + '...';\n}\n\n/* Create a TwiML response */\nvar msgObj = {\n    'Response':{\n        'Message':responseBody\n    }\n};\n\nmsg.payload = msgObj;\n\nreturn msg;",
	"outputs": 1,
	"noerr": 0,
	"x": 405,
	"y": 203,
	"z": "45fca0cc.ba036",
	"wires": [
		["c5df5b2a.2c60a"]
	]
}, {
	"id": "b371e316.ba0e98",
	"type": "http in",
	"name": "",
	"url": "/twilio",
	"method": "post",
	"swaggerDoc": "",
	"x": 88,
	"y": 47,
	"z": "45fca0cc.ba036",
	"wires": [
		["d8b093a0.286d3"]
	]
}, {
	"id": "c5df5b2a.2c60a",
	"type": "xml",
	"name": "Convert to TwiML",
	"attr": "$",
	"chr": "_",
	"x": 145,
	"y": 363,
	"z": "45fca0cc.ba036",
	"wires": [
		["6fdc241a.55dcec"]
	]
}, {
	"id": "6fdc241a.55dcec",
	"type": "http response",
	"name": "Respond to Twilio",
	"x": 372,
	"y": 363,
	"z": "45fca0cc.ba036",
	"wires": []
}, {
	"id": "d8b093a0.286d3",
	"type": "function",
	"name": "Store SMS details",
	"func": "// Store the SMS details we need for the response\nmsg.from = msg.payload.From;\nmsg.payload = msg.payload.Body;\n\nreturn msg;",
	"outputs": 1,
	"noerr": 0,
	"x": 259,
	"y": 47,
	"z": "45fca0cc.ba036",
	"wires": [
		["546be34d.bd9d64"]
	]
}]