Alexa smart home skill adapter to send MQTT messages via Octoblu

lambda.py

import urllib
import urllib2

octoblu_trigger = "https://triggers.octoblu.com/v2/flows/01234567-89ab-cdef-0123-456789abcdef/triggers/01234567-89ab-cdef-0123-456789abcdef"

def lambda_handler(event, context):
    access_token = event['payload']['accessToken']

    if event['header']['namespace'] == 'Alexa.ConnectedHome.Discovery':
        return handleDiscovery(context, event)

    elif event['header']['namespace'] == 'Alexa.ConnectedHome.Control':
        return handleControl(context, event)
        
def handleDiscovery(context, event):
    payload = ''
    header = {
        "namespace": "Alexa.ConnectedHome.Discovery",
        "name": "DiscoverAppliancesResponse",
        "payloadVersion": "2"
        }

    if event['header']['name'] == 'DiscoverAppliancesRequest':
        payload = {
            "discoveredAppliances":[
                {
                    "applianceId":"Bedroom1=Desk",
                    "manufacturerName":"James Bulpin",
                    "modelName":"LWRF",
                    "version":"v0.1",
                    "friendlyName":"Study Desk Lamp",
                    "friendlyDescription":"Desk lamp in bedroom 1",
                    "isReachable":True,
                    "actions":[
                        "turnOn",
                        "turnOff"
                    ],
                    "additionalApplianceDetails":{
                        "mqttTopics":"Light/Bedroom1/Desk"
                    }
                },
                {
                    "applianceId":"Bedroom2=Lamp",
                    "manufacturerName":"James Bulpin",
                    "modelName":"LWRF",
                    "version":"v0.1",
                    "friendlyName":"Bedroom Lamp",
                    "friendlyDescription":"Bedside lamp in bedroom 2",
                    "isReachable":True,
                    "actions":[
                        "turnOn",
                        "turnOff"
                    ],
                    "additionalApplianceDetails":{
                        "mqttTopics":"Light/Bedroom2/Lamp"
                    }
                },
                {
                    "applianceId":"OutsideFront",
                    "manufacturerName":"James Bulpin",
                    "modelName":"LWRF",
                    "version":"v0.1",
                    "friendlyName":"Outside light",
                    "friendlyDescription":"Outside front door light",
                    "isReachable":True,
                    "actions":[
                        "turnOn",
                        "turnOff"
                    ],
                    "additionalApplianceDetails":{
                        "mqttTopics":"Light/frontdoor"
                    }
                },
                {
                    "applianceId":"LoungeLights",
                    "manufacturerName":"James Bulpin",
                    "modelName":"LWRF",
                    "version":"v0.1",
                    "friendlyName":"Lounge lights",
                    "friendlyDescription":"All lights in the living room",
                    "isReachable":True,
                    "actions":[
                        "turnOn",
                        "turnOff"
                    ],
                    "additionalApplianceDetails":{
                        "mqttTopics":"compound/loungelights"
                    }
                },
                {
                    "applianceId":"DiningRoomLights",
                    "manufacturerName":"James Bulpin",
                    "modelName":"LWRF",
                    "version":"v0.1",
                    "friendlyName":"Dining room lights",
                    "friendlyDescription":"Fireplace lights in the dining room",
                    "isReachable":True,
                    "actions":[
                        "turnOn",
                        "turnOff"
                    ],
                    "additionalApplianceDetails":{
                        "mqttTopics":"Light/Dining/Fireplace"
                    }
                },
                {
                    "applianceId":"loungetv",
                    "manufacturerName":"James Bulpin",
                    "modelName":"LWRF",
                    "version":"v0.1",
                    "friendlyName":"TV",
                    "friendlyDescription":"Living room TV and amp",
                    "isReachable":True,
                    "actions":[
                        "turnOn",
                        "turnOff"
                    ],
                    "additionalApplianceDetails":{
                        "mqttTopics":"KODI/Lounge/TV"
                    }
                },
                {
                    "applianceId":"loungeeverything",
                    "manufacturerName":"James Bulpin",
                    "modelName":"LWRF",
                    "version":"v0.1",
                    "friendlyName":"living room",
                    "friendlyDescription":"Living room all devices",
                    "isReachable":True,
                    "actions":[
                        "turnOn",
                        "turnOff"
                    ],
                    "additionalApplianceDetails":{
                        "mqttTopics":"compound/loungeall"
                    }
                }
            ]
        }
    return {"header":header, "payload":payload}

def handleControl(context, event):
    payload = ''
    device_id = event['payload']['appliance']['applianceId']
    message_id = event['header']['messageId']

    obmsg = {"debug":event}
    cfm = ""
    if event['header']['name'] == 'TurnOnRequest' or event['header']['name'] == 'TurnOffRequest':
        if event['header']['name'] == 'TurnOnRequest':
            obmsg["message"] = "on"
            cfm = "TurnOnConfirmation"
        else:
            obmsg["message"] = "off"
            cfm = "TurnOffConfirmation"
        for t in event["payload"]["appliance"]["additionalApplianceDetails"]["mqttTopics"].split():
            obmsg["topic"] = t
            url = octoblu_trigger
            data = urllib.urlencode(obmsg)
            req = urllib2.Request(url, data)
            response = urllib2.urlopen(req)
            the_page = response.read()
        payload = { }

    header = {
        "namespace":"Alexa.ConnectedHome.Control",
        "name":cfm,
        "payloadVersion":"2",
        "messageId": message_id
        }
    return {"header":header, "payload":payload}