def handle_discovery(request):
print('- Discovery initiated!')
token = request['directive']['payload']['scope']['token']
intof_id = umap.token_intof_map(token)
if (intof_id == None):
response = get_error_response(
'REGISTRATION_ERROR', 'Unable to get the Intof user id.'
) # INVALID_AUTHORIZATION_CREDENTIAL / EXPIRD
#return send_response (response.get())
return response
devices = device.get_devices(intof_id)
if (devices == None):
response = get_error_response(
'DISCOVERY_ERROR', 'Unable to get your registered devices.')
if len(devices) == 0:
response = get_error_response(
'DISCOVERY_ERROR', 'You do not have any registered devices.')
return send_response(response.get())
response = AlexaResponse(namespace='Alexa.Discovery',
name='Discover.Response')
# create a basic alexa capability...
capability_alexa = response.create_payload_endpoint_capability()
# .. and a more specific capability
capability_powercontroller = response.create_payload_endpoint_capability(
interface='Alexa.PowerController', supported=[{
'name': 'powerState'
}])
for i in range(len(devices)):
response.add_payload_endpoint(
friendly_name=devices[i][1],
endpoint_id=devices[i][0],
capabilities=[capability_alexa, capability_powercontroller])
return response
def test_discovery(self):
adr = AlexaResponse(namespace="Alexa.Discovery", name="Discover.Response")
capability_alexa = adr.create_payload_endpoint_capability()
capability_alexa_powercontroller = adr.create_payload_endpoint_capability(
interface="Alexa.PowerController",
supported=[{"name": "powerState"}])
adr.add_payload_endpoint(capabilities=[capability_alexa, capability_alexa_powercontroller])
response = adr.get()
self.assertEqual(response['event']['header']['namespace'], 'Alexa.Discovery')
self.assertEqual(response['event']['header']['name'], 'Discover.Response')
self.assertEqual(response['event']['payload']['endpoints'][0]['friendlyName'], 'Sample Endpoint')
self.assertEqual(response['event']['payload']['endpoints'][0]['capabilities'][0]['type'], 'AlexaInterface')
def discover_devices(request):
"""
Discover the declared devices this handler supports
"""
command = request['directive']['header']['name']
if command == 'Discover':
adr = AlexaResponse(namespace='Alexa.Discovery',
name='Discover.Response')
capability_alexa = adr.create_payload_endpoint_capability()
capability_alexa_powercontroller = adr.create_payload_endpoint_capability(
interface='Alexa.PowerController',
supported=[{
'name': 'powerState'
}])
for device in _DEVICES:
adr.add_payload_endpoint(capabilities=[
capability_alexa, capability_alexa_powercontroller
],
**device)
return success(adr.get())
def process(self, request, client_id, client_secret, redirect_uri):
print('LOG api_handler_directive.process -----')
# print(json.dumps(request))
response = None
# Process an Alexa directive and route to the right namespace
# Only process if there is an actual body to process otherwise return an ErrorResponse
json_body = request['body']
if json_body:
json_object = json.loads(json_body)
namespace = json_object['directive']['header']['namespace']
if namespace == "Alexa":
name = json_object['directive']['header']['name']
correlation_token = json_object['directive']['header'][
'correlationToken']
token = json_object['directive']['endpoint']['scope']['token']
endpoint_id = json_object['directive']['endpoint'][
'endpointId']
if name == 'ReportState':
# Get the User ID from the access_token
response_user_id = json.loads(
ApiAuth.get_user_id(token).read().decode('utf-8'))
result = dynamodb_aws.get_item(
TableName='SampleEndpointDetails',
Key={'EndpointId': {
'S': endpoint_id
}})
capabilities_string = self.get_db_value(
result['Item']['Capabilities'])
capabilities = json.loads(capabilities_string)
props = []
for c in capabilities:
if not 'properties' in c:
continue
retrievable = c['properties'].get('retrievable', False)
if retrievable:
props.append(c)
state = {}
try:
res = iot_data_aws.get_thing_shadow(
thingName=endpoint_id)
shadow = json.loads(res['payload'].read())
state = shadow['state']['desired']
except ClientError as e:
print('LOG ', e)
print('Sending StateReport for', response_user_id,
'on endpoint', endpoint_id)
statereport_response = AlexaResponse(
name='StateReport',
endpoint_id=endpoint_id,
correlation_token=correlation_token,
token=token)
for p in props:
key = p['properties']['supported'][0]['name']
if 'instance' in p:
key = p['instance'] + '.' + key
current_state = state.get(key,
DEFAULT_VAL[p['interface']])
if 'instance' in p:
statereport_response.add_context_property(
namespace=p['interface'],
name=p['properties']['supported'][0]['name'],
value=current_state,
instance=p['instance'])
else:
statereport_response.add_context_property(
namespace=p['interface'],
name=p['properties']['supported'][0]['name'],
value=current_state)
response = statereport_response.get()
if namespace == "Alexa.Authorization":
grant_code = json_object['directive']['payload']['grant'][
'code']
grantee_token = json_object['directive']['payload']['grantee'][
'token']
# Spot the default from the Alexa.Discovery sample. Use as a default for development.
if grantee_token == 'access-token-from-skill':
user_id = "0" # <- Useful for development
response_object = {
'access_token': 'INVALID',
'refresh_token': 'INVALID',
'token_type': 'Bearer',
'expires_in': 9000
}
else:
# Get the User ID
response_user_id = json.loads(
ApiAuth.get_user_id(grantee_token).read().decode(
'utf-8'))
if 'error' in response_user_id:
print(
'ERROR api_handler_directive.process.authorization.user_id:',
response_user_id['error_description'])
return AlexaResponse(name='ErrorResponse',
payload={
'type': 'INTERNAL_ERROR',
'message': response_user_id
})
user_id = response_user_id['user_id']
print(
'LOG api_handler_directive.process.authorization.user_id:',
user_id)
# Get the Access and Refresh Tokens
api_auth = ApiAuth()
print('grant_code', grant_code, 'client_id', client_id,
'client_secret', client_secret, 'redirect_uri',
redirect_uri)
response_token = api_auth.get_access_token(
grant_code, client_id, client_secret, redirect_uri)
response_token_string = response_token.read().decode('utf-8')
print(
'LOG api_handler_directive.process.authorization.response_token_string:',
response_token_string)
response_object = json.loads(response_token_string)
if 'error' in response_object:
return AlexaResponse(name='ErrorResponse',
payload={
'type': 'INTERNAL_ERROR',
'response_object': response_object
})
# Store the retrieved from the Authorization Server
access_token = response_object['access_token']
refresh_token = response_object['refresh_token']
token_type = response_object['token_type']
expires_in = response_object['expires_in']
# Calculate expiration
expiration_utc = datetime.utcnow() + timedelta(
seconds=(int(expires_in) - 5))
# Store the User Information - This is useful for inspection during development
table = boto3.resource('dynamodb').Table('SampleUsers')
result = table.put_item(
Item={
'UserId':
user_id,
'GrantCode':
grant_code,
'GranteeToken':
grantee_token,
'AccessToken':
access_token,
'ClientId':
client_id,
'ClientSecret':
client_secret,
'ExpirationUTC':
expiration_utc.strftime("%Y-%m-%dT%H:%M:%S.00Z"),
'RedirectUri':
redirect_uri,
'RefreshToken':
refresh_token,
'TokenType':
token_type
})
if result['ResponseMetadata']['HTTPStatusCode'] == 200:
print(
'LOG api_handler_directive.process.authorization.SampleUsers.put_item:',
result)
alexa_accept_grant_response = AlexaResponse(
namespace='Alexa.Authorization',
name='AcceptGrant.Response')
response = alexa_accept_grant_response.get()
else:
error_message = 'Error creating User'
print('ERR api_handler_directive.process.authorization',
error_message)
alexa_error_response = AlexaResponse(name='ErrorResponse')
alexa_error_response.set_payload({
'type': 'INTERNAL_ERROR',
'message': error_message
})
response = alexa_error_response.get()
if namespace == "Alexa.Cooking":
name = json_object['directive']['header']['name']
correlation_token = json_object['directive']['header'][
'correlationToken']
token = json_object['directive']['endpoint']['scope']['token']
endpoint_id = json_object['directive']['endpoint'][
'endpointId']
if name == "SetCookingMode":
alexa_error_response = AlexaResponse(
endpoint_id=endpoint_id,
correlation_token=correlation_token,
token=token)
response = alexa_error_response.get()
if namespace == "Alexa.Discovery":
# Given the Access Token, get the User ID
access_token = json_object['directive']['payload']['scope'][
'token']
# Spot the default from the Alexa.Discovery sample. Use as a default for development.
if access_token == 'access-token-from-skill':
print(
'WARN api_handler_directive.process.discovery.user_id: Using development user_id of 0'
)
user_id = "0" # <- Useful for development
else:
response_user_id = json.loads(
ApiAuth.get_user_id(access_token).read().decode(
'utf-8'))
if 'error' in response_user_id:
print(
'ERROR api_handler_directive.process.discovery.user_id: '
+ response_user_id['error_description'])
user_id = response_user_id['user_id']
print(
'LOG api_handler_directive.process.discovery.user_id:',
user_id)
adr = AlexaResponse(namespace='Alexa.Discovery',
name='Discover.Response')
# Get the list of endpoints to return for a User ID and add them to the response
# Use the AWS IoT entries for state but get the discovery details from DynamoDB
# Wanted to list by group name but that requires a second lookup for the details
# iot_aws.list_things_in_thing_group(thingGroupName="Samples")
list_response = iot_aws.list_things()
# Get a list of sample things by the user_id attribute
for thing in list_response['things']:
if 'user_id' in thing['attributes']:
if thing['attributes']['user_id'] == user_id:
# We have an endpoint thing!
endpoint_details = ApiHandlerEndpoint.EndpointDetails(
)
endpoint_details.id = str(thing['thingName'])
print(
'LOG api_handler_directive.process.discovery: Found:',
endpoint_details.id, 'for user:'******'SampleEndpointDetails',
Key={'EndpointId': {
'S': endpoint_details.id
}})
capabilities_string = self.get_db_value(
result['Item']['Capabilities'])
endpoint_details.capabilities = json.loads(
capabilities_string)
endpoint_details.description = self.get_db_value(
result['Item']['Description'])
endpoint_details.display_categories = json.loads(
self.get_db_value(
result['Item']['DisplayCategories']))
endpoint_details.friendly_name = self.get_db_value(
result['Item']['FriendlyName'])
endpoint_details.manufacturer_name = self.get_db_value(
result['Item']['ManufacturerName'])
endpoint_details.sku = self.get_db_value(
result['Item']['SKU'])
endpoint_details.user_id = self.get_db_value(
result['Item']['UserId'])
adr.add_payload_endpoint(
friendly_name=endpoint_details.friendly_name,
endpoint_id=endpoint_details.id,
capabilities=endpoint_details.capabilities,
display_categories=endpoint_details.
display_categories,
manufacturer_name=endpoint_details.
manufacturer_name)
response = adr.get()
if namespace == "Alexa.PowerController":
name = json_object['directive']['header']['name']
correlation_token = None
if 'correlationToken' in json_object['directive']['header']:
correlation_token = json_object['directive']['header'][
'correlationToken']
token = json_object['directive']['endpoint']['scope']['token']
endpoint_id = json_object['directive']['endpoint'][
'endpointId']
response_user_id = json.loads(
ApiAuth.get_user_id(token).read().decode('utf-8'))
if 'error' in response_user_id:
print(
'ERROR api_handler_directive.process.power_controller.user_id: '
+ response_user_id['error_description'])
user_id = response_user_id['user_id']
print(
'LOG api_handler_directive.process.power_controller.user_id:',
user_id)
# Convert to a local stored state
power_state_value = 'OFF' if name == "TurnOff" else 'ON'
msg = {'state': {'desired': {'powerState': 'ON'}}}
msg['state']['desired']['powerState'] = power_state_value
mqtt_msg = json.dumps(msg)
# Send the state to the Thing Shadow
try:
response_update = iot_data_aws.update_thing_shadow(
thingName=endpoint_id, payload=mqtt_msg.encode())
print(
'LOG api_handler_directive.process.power_controller.response_update -----'
)
print(response_update)
alexa_response = AlexaResponse(
token=token,
correlation_token=correlation_token,
endpoint_id=endpoint_id)
alexa_response.add_context_property(
namespace='Alexa.PowerController',
name='powerState',
value=power_state_value)
alexa_response.add_context_property()
response = alexa_response.get()
except ClientError as e:
print(
'ERR api_handler_directive.process.power_controller Exception:ClientError:',
e)
response = AlexaResponse(name='ErrorResponse',
message=e).get()
if namespace == "Alexa.ModeController":
alexa_error_response = AlexaResponse(name='ErrorResponse')
alexa_error_response.set_payload({
'type':
'INTERNAL_ERROR',
'message':
'Not Yet Implemented'
})
response = alexa_error_response.get()
if namespace == "Alexa.RangeController":
name = json_object['directive']['header']['name']
correlation_token = json_object['directive']['header'][
'correlationToken']
instance = json_object['directive']['header']['instance']
token = json_object['directive']['endpoint']['scope']['token']
endpoint_id = json_object['directive']['endpoint'][
'endpointId']
result = dynamodb_aws.get_item(
TableName='SampleEndpointDetails',
Key={'EndpointId': {
'S': endpoint_id
}})
capabilities_string = self.get_db_value(
result['Item']['Capabilities'])
capabilities = json.loads(capabilities_string)
for c in capabilities:
if 'instance' in c and c['instance'] == instance:
MIN_VAL = c['configuration']['supportedRange'][
'minimumValue']
MAX_VAL = c['configuration']['supportedRange'][
'maximumValue']
PREC = c['configuration']['supportedRange'][
'precision']
break
alexa_response = AlexaResponse(
endpoint_id=endpoint_id,
correlation_token=correlation_token,
token=token)
value = 0
if name == "AdjustRangeValue":
range_value_delta = json_object['directive']['payload'][
'rangeValueDelta']
range_value_delta_default = json_object['directive'][
'payload']['rangeValueDeltaDefault']
reported_range_value = 0
# Check to see if we need to use the delta default value (The user did not give a precision)
if range_value_delta_default:
range_value_delta = PREC
# Lookup the existing value of the endpoint by endpoint_id and limit ranges as appropriate - for this sample, expecting 1-6
try:
response = iot_data_aws.get_thing_shadow(
thingName=endpoint_id)
payload = json.loads(response['payload'].read())
reported_range_value = payload['state']['reported'][
instance + '.rangeValue']
print(
'LOG api_handler_directive.process.range_controller.range_value:',
reported_range_value)
except ClientError as e:
print(e)
except KeyError as errorKey:
print('Could not find key:', errorKey)
new_range_value = reported_range_value + range_value_delta
value = max(min(new_range_value, MAX_VAL), MIN_VAL)
if name == "SetRangeValue":
range_value = json_object['directive']['payload'][
'rangeValue']
value = max(min(range_value, MAX_VAL), MIN_VAL)
alexa_response.add_context_property(
namespace='Alexa.RangeController',
name='rangeValue',
value=value)
# Update the Thing Shadow
msg = {'state': {'desired': {}}}
# NOTE: The instance is used to keep the stored value unique
msg['state']['desired'][instance + '.rangeValue'] = value
mqtt_msg = json.dumps(msg)
response_update = iot_data_aws.update_thing_shadow(
thingName=endpoint_id, payload=mqtt_msg.encode())
print(
'LOG api_handler_directive.process.range_controller.response_update -----'
)
print(response_update)
# Send back the response
response = alexa_response.get()
if namespace == "Alexa.ToggleController":
name = json_object['directive']['header']['name']
correlation_token = json_object['directive']['header'][
'correlationToken']
instance = json_object['directive']['header']['instance']
token = json_object['directive']['endpoint']['scope']['token']
endpoint_id = json_object['directive']['endpoint'][
'endpointId']
# Convert to a local stored state
toggle_state_value = 'OFF' if name == "TurnOff" else 'ON'
state_name = instance + '.state'
msg = {'state': {'desired': {state_name: 'ON'}}}
msg['state']['desired'][state_name] = toggle_state_value
mqtt_msg = json.dumps(msg)
# Send the state to the Thing Shadow
try:
response_update = iot_data_aws.update_thing_shadow(
thingName=endpoint_id, payload=mqtt_msg.encode())
print(
'LOG api_handler_directive.process.toggle_controller.response_update -----'
)
print(response_update)
alexa_response = AlexaResponse(
token=token,
correlation_token=correlation_token,
endpoint_id=endpoint_id)
alexa_response.add_context_property(
namespace='Alexa.ToggleController',
name='toggleState',
instance=instance,
value=toggle_state_value)
alexa_response.add_context_property()
response = alexa_response.get()
except ClientError as e:
print(
'ERR api_handler_directive.process.toggle_controller Exception:ClientError:',
e)
response = AlexaResponse(name='ErrorResponse',
message=e).get()
else:
alexa_error_response = AlexaResponse(name='ErrorResponse')
alexa_error_response.set_payload({
'type': 'INTERNAL_ERROR',
'message': 'Empty Body'
})
response = alexa_error_response.get()
if response is None:
# response set to None indicates an unhandled directive, review the logs
alexa_error_response = AlexaResponse(name='ErrorResponse')
alexa_error_response.set_payload({
'type':
'INTERNAL_ERROR',
'message':
'Empty Response: No response processed. Unhandled Directive.'
})
response = alexa_error_response.get()
print('LOG api_handler_directive.process.response -----')
print(json.dumps(response))
return response
def lambda_handler(request, context):
# Dump the request for logging - check the CloudWatch logs
print('lambda_handler request -----')
print(json.dumps(request))
if context is not None:
print('lambda_handler context -----')
print(context)
# Validate we have an Alexa directive
if 'directive' not in request:
aer = AlexaResponse(
name='ErrorResponse',
payload={
'type':
'INVALID_DIRECTIVE',
'message':
'Missing key: directive, Is the request a valid Alexa Directive?'
})
return send_response(aer.get())
# Check the payload version
payload_version = request['directive']['header']['payloadVersion']
if payload_version != '3':
aer = AlexaResponse(
name='ErrorResponse',
payload={
'type': 'INTERNAL_ERROR',
'message': 'This skill only supports Smart Home API version 3'
})
return send_response(aer.get())
# Crack open the request and see what is being requested
name = request['directive']['header']['name']
namespace = request['directive']['header']['namespace']
print('Name:' + name)
print('Namespace:' + namespace)
# Handle the incoming request from Alexa based on the namespace
if namespace == 'Alexa.Authorization':
if name == 'AcceptGrant':
# Note: This sample accepts any grant request
# In your implementation you would use the code and token to get and store access tokens
grant_code = request['directive']['payload']['grant']['code']
grantee_token = request['directive']['payload']['grantee']['token']
aar = AlexaResponse(namespace='Alexa.Authorization',
name='AcceptGrant.Response')
return send_response(aar.get())
if namespace == 'Alexa.Discovery':
if name == 'Discover':
adr = AlexaResponse(namespace='Alexa.Discovery',
name='Discover.Response')
capability_alexa = adr.create_payload_endpoint_capability()
capability_alexa_powercontroller = adr.create_payload_endpoint_capability(
interface='Alexa.PowerController',
supported=[{
'name': 'powerState'
}])
capability_alexa_temperaturesensor = adr.create_payload_endpoint_capability(
interface='Alexa.TemperatureSensor',
supported=[{
'name': 'temperature'
}],
retrievable='true',
proactively_reported='true',
)
capability_alexa_endpointhealth = adr.create_payload_endpoint_capability(
interface='Alexa.EndpointHealth',
supported=[{
'name': 'connectivity'
}],
proactively_reported='true',
retrievable='true')
# adr.add_payload_endpoint(
# friendly_name='Termostato Sala',
# endpoint_id='temperaturesensor-001',
# description='Termostato Sala',
# display_categories=["TEMPERATURE_SENSOR"],
# manufacturer_name = 'myself manufacter',
# capabilities=[capability_alexa, capability_alexa_temperaturesensor, capability_alexa_endpointhealth ])
# adr.add_payload_endpoint(
# friendly_name='Termostato Cucina',
# endpoint_id='temperaturesensor-002',
# description='Termostato Cucina',
# display_categories=["TEMPERATURE_SENSOR"],
# manufacturer_name = 'myself manufacter',
# capabilities=[capability_alexa, capability_alexa_temperaturesensor, capability_alexa_endpointhealth ])
adr.add_payload_endpoint(friendly_name='Luce 01',
endpoint_id='light-001',
description='Luce 01',
display_categories=["LIGHT"],
manufacturer_name='myself manufacter',
capabilities=[
capability_alexa,
capability_alexa_powercontroller
])
adr.add_payload_endpoint(friendly_name='Luce 02',
endpoint_id='light-002',
description='Luce 02',
display_categories=["LIGHT"],
manufacturer_name='myself manufacter',
capabilities=[
capability_alexa,
capability_alexa_powercontroller
])
adr.add_payload_endpoint(friendly_name='Luce 03',
endpoint_id='light-003',
description='Luce 03',
display_categories=["LIGHT"],
manufacturer_name='myself manufacter',
capabilities=[
capability_alexa,
capability_alexa_powercontroller
])
adr.add_payload_endpoint(friendly_name='Luce 04',
endpoint_id='light-004',
description='Luce 04',
display_categories=["LIGHT"],
manufacturer_name='myself manufacter',
capabilities=[
capability_alexa,
capability_alexa_powercontroller
])
adr.add_payload_endpoint(friendly_name='Luce 05',
endpoint_id='light-005',
description='Luce 05',
display_categories=["LIGHT"],
manufacturer_name='myself manufacter',
capabilities=[
capability_alexa,
capability_alexa_powercontroller
])
adr.add_payload_endpoint(friendly_name='Luce 06',
endpoint_id='light-006',
description='Luce 06',
display_categories=["LIGHT"],
manufacturer_name='myself manufacter',
capabilities=[
capability_alexa,
capability_alexa_powercontroller
])
adr.add_payload_endpoint(friendly_name='Luce 07',
endpoint_id='light-007',
description='Luce 07',
display_categories=["LIGHT"],
manufacturer_name='myself manufacter',
capabilities=[
capability_alexa,
capability_alexa_powercontroller
])
adr.add_payload_endpoint(friendly_name='Luce 08',
endpoint_id='light-008',
description='Luce 08',
display_categories=["LIGHT"],
manufacturer_name='myself manufacter',
capabilities=[
capability_alexa,
capability_alexa_powercontroller
])
adr.add_payload_endpoint(friendly_name='Cancellino',
endpoint_id='gate-001',
description='Cancellino',
display_categories=["DOOR"],
manufacturer_name='myself manufacter',
capabilities=[
capability_alexa,
capability_alexa_powercontroller
])
return send_response(adr.get())
if namespace == 'Alexa':
if name == 'ReportState':
print('Richiesta tipo ReportState -----')
# Note: This sample always returns a success response for either a request to TurnOff or TurnOn
endpoint_id = request['directive']['endpoint']['endpointId']
print('ENDPOINT ID: ' + endpoint_id)
correlation_token = request['directive']['header'][
'correlationToken']
token = request['directive']['endpoint']['scope']['token']
print('Correlation_Token: ' + correlation_token)
print('Token: ' + token)
apcr = AlexaResponse(name='StateReport',
endpoint_id=endpoint_id,
correlation_token=correlation_token,
token=token)
if (endpoint_id == 'temperaturesensor-001'):
apcr.add_context_property(namespace='Alexa.TemperatureSensor',
name='temperature',
value={
'value': '19.9',
'scale': 'CELSIUS'
})
elif (endpoint_id == 'temperaturesensor-002'):
apcr.add_context_property(namespace='Alexa.TemperatureSensor',
name='temperature',
value={
'value': '22.3',
'scale': 'CELSIUS'
})
return send_response(apcr.get())
if namespace == 'Alexa.PowerController' or namespace == 'Alexa.ToogleController':
print('Richiesta tipo PowerController -----')
# Note: This sample always returns a success response for either a request to TurnOff or TurnOn
endpoint_id = request['directive']['endpoint']['endpointId']
power_state_value = 'OFF' if name == 'TurnOff' else 'ON'
correlation_token = request['directive']['header']['correlationToken']
# Check for an error when setting the state
state_set = set_device_state(endpoint_id=endpoint_id,
state='powerState',
value=power_state_value)
if not state_set:
return AlexaResponse(name='ErrorResponse',
payload={
'type':
'ENDPOINT_UNREACHABLE',
'message':
'Unable to reach endpoint database.'
}).get()
apcr = AlexaResponse(correlation_token=correlation_token)
apcr.add_context_property(namespace='Alexa.PowerController',
name='powerState',
value=power_state_value)
return send_response(apcr.get())
def lambda_handler(request, context):
# Dump the request for logging - check the CloudWatch logs
print('lambda_handler request -----')
print(json.dumps(request))
if context is not None:
print('lambda_handler context -----')
print(context)
# Validate we have an Alexa directive
if 'directive' not in request:
aer = AlexaResponse(
name='ErrorResponse',
payload={'type': 'INVALID_DIRECTIVE',
'message': 'Missing key: directive, Is the request a valid Alexa Directive?'})
return send_response(aer.get())
# Check the payload version
payload_version = request['directive']['header']['payloadVersion']
if payload_version != '3':
aer = AlexaResponse(
name='ErrorResponse',
payload={'type': 'INTERNAL_ERROR',
'message': 'This skill only supports Smart Home API version 3'})
return send_response(aer.get())
# Crack open the request and see what is being requested
name = request['directive']['header']['name']
namespace = request['directive']['header']['namespace']
# Handle the incoming request from Alexa based on the namespace
if namespace == 'Alexa.Authorization':
if name == 'AcceptGrant':
# Note: This sample accepts any grant request
# In your implementation you would use the code and token to get and store access tokens
grant_code = request['directive']['payload']['grant']['code']
grantee_token = request['directive']['payload']['grantee']['token']
aar = AlexaResponse(namespace='Alexa.Authorization', name='AcceptGrant.Response')
return send_response(aar.get())
if namespace == 'Alexa.Discovery':
if name == 'Discover':
adr = AlexaResponse(namespace='Alexa.Discovery', name='Discover.Response')
capability_alexa = adr.create_payload_endpoint_capability()
capability_alexa_powercontroller = adr.create_payload_endpoint_capability(
interface='Alexa.PowerController',
supported=[{'name': 'powerState'}])
adr.add_payload_endpoint(
friendly_name='Sample Switch',
endpoint_id='sample-switch-01',
capabilities=[capability_alexa, capability_alexa_powercontroller])
return send_response(adr.get())
if namespace == 'Alexa.PowerController':
# Note: This sample always returns a success response for either a request to TurnOff or TurnOn
endpoint_id = request['directive']['endpoint']['endpointId']
power_state_value = 'OFF' if name == 'TurnOff' else 'ON'
correlation_token = request['directive']['header']['correlationToken']
# Check for an error when setting the state
state_set = set_device_state(endpoint_id=endpoint_id, state='powerState', value=power_state_value)
if not state_set:
return AlexaResponse(
name='ErrorResponse',
payload={'type': 'ENDPOINT_UNREACHABLE', 'message': 'Unable to reach endpoint database.'}).get()
# Check for an error when setting TurnOn/TurnOff time
if power_state_value == 'ON':
TurnOn_set = set_device_time(endpoint_id=endpoint_id, state='TurnOnTime', value=get_seconds_timestamp())
if not TurnOn_set:
return AlexaResponse(
name='ErrorResponse',
payload={'type': 'ENDPOINT_UNREACHABLE', 'message': 'Unable to reach endpoint database.'}).get()
global turned_on
turned_on = get_seconds_timestamp()
time.sleep(random.uniform(1.500,2.500))
TurnOff_set = set_device_state(endpoint_id=endpoint_id, state='powerState', value='OFF')
print("turnedoff")
# if not TurnOff_set:
# return AlexaResponse(
# name='ErrorResponse',
# payload={'type': 'ENDPOINT_UNREACHABLE', 'message': 'Unable to reach endpoint database.'}).get()
if power_state_value == 'OFF':
TurnOff_set = set_device_time(endpoint_id=endpoint_id, state='TurnOffTime', value=get_seconds_timestamp())
if not TurnOff_set:
return AlexaResponse(
name='ErrorResponse',
payload={'type': 'ENDPOINT_UNREACHABLE', 'message': 'Unable to reach endpoint database.'}).get()
global turned_off
turned_off = get_seconds_timestamp()
uptime_length = get_uptime_length(turned_on, turned_off)
last_uptime_length = set_device_time(endpoint_id=endpoint_id, state='LastUptimeLength', value=uptime_length)
if not last_uptime_length:
return AlexaResponse(
name='ErrorResponse',
payload={'type': 'ENDPOINT_UNREACHABLE', 'message': 'Unable to reach endpoint database.'}).get()
add_value_to_file(uptime_length)
apcr = AlexaResponse(correlation_token=correlation_token)
apcr.add_context_property(namespace='Alexa.PowerController', name='powerState', value=power_state_value)
return send_response(apcr.get())
def lambda_handler(request, context):
# Dump the request for logging - check the CloudWatch logs
print('lambda_handler request -----')
print(json.dumps(request))
if context is not None:
print('lambda_handler context -----')
print(context)
# Validate we have an Alexa directive
if 'directive' not in request:
aer = AlexaResponse(
name='ErrorResponse',
payload={
'type':
'INVALID_DIRECTIVE',
'message':
'Missing key: directive, Is the request a valid Alexa Directive?'
})
return send_response(aer.get())
# Check the payload version
payload_version = request['directive']['header']['payloadVersion']
if payload_version != '3':
aer = AlexaResponse(
name='ErrorResponse',
payload={
'type': 'INTERNAL_ERROR',
'message': 'This skill only supports Smart Home API version 3'
})
return send_response(aer.get())
# Crack open the request and see what is being requested
name = request['directive']['header']['name']
namespace = request['directive']['header']['namespace']
# Handle the incoming request from Alexa based on the namespace
if namespace == 'Alexa.Authorization':
if name == 'AcceptGrant':
# Note: This sample accepts any grant request
# In your implementation you would use the code and token to get and store access tokens
grant_code = request['directive']['payload']['grant']['code']
grantee_token = request['directive']['payload']['grantee']['token']
aar = AlexaResponse(namespace='Alexa.Authorization',
name='AcceptGrant.Response')
return send_response(aar.get())
if namespace == 'Alexa.Discovery':
if name == 'Discover':
adr = AlexaResponse(namespace='Alexa.Discovery',
name='Discover.Response')
capability_alexa = adr.create_payload_endpoint_capability()
capability_alexa_powercontroller = adr.create_payload_endpoint_capability(
interface='Alexa.PowerController',
supported=[{
'name': 'powerState'
}])
adr.add_payload_endpoint(endpoint_id='LED',
friendly_name='LED',
description='これはただのLEDです。',
display_categories=['LIGHT'],
capabilities=[
capability_alexa,
capability_alexa_powercontroller
])
return send_response(adr.get())
if namespace == 'Alexa.PowerController':
# Note: This sample always returns a success response for either a request to TurnOff or TurnOn
endpoint_id = request['directive']['endpoint']['endpointId']
power_state_value = 'OFF' if name == 'TurnOff' else 'ON'
correlation_token = request['directive']['header']['correlationToken']
apcr = AlexaResponse(correlation_token=correlation_token)
apcr.add_context_property(namespace='Alexa.PowerController',
name='powerState',
value=power_state_value)
# Update Thing Shadow Desired Value
update_thing_shadow("led",
False if power_state_value == 'OFF' else True)
return send_response(apcr.get())
def handle_discovery(event):
adr = AlexaResponse(namespace=NAMESPACE_DISCOVERY, name=RESPONSE_DISCOVER)
capability_alexa = adr.create_payload_endpoint_capability()
capability_alexa_powercontroller = adr.create_payload_endpoint_capability(
interface=NAMESPACE_CONTROL, supported=[{
'name': 'powerState'
}])
capability_alexa_brightnesscontroller = adr.create_payload_endpoint_capability(
interface=NAMESPACE_BRIGHTNESS, supported=[{
'name': 'brightness'
}])
capability_alexa_colorcontroller = adr.create_payload_endpoint_capability(
interface=NAMESPACE_COLOR, supported=[{
'name': 'color'
}])
capability_alexa_modecontroller = adr.create_payload_endpoint_capability(
interface=NAMESPACE_MODE, supported=[{
'name': 'mode'
}])
capability_alexa_modecontroller['instance'] = 'CharlotteLight.LightMode'
capability_alexa_modecontroller['capabilityResources'] = {
"friendlyNames": [{
"@type": "text",
"value": {
"text": "mode",
"locale": "en-GB"
}
}, {
"@type": "text",
"value": {
"text": "light mode",
"locale": "en-GB"
}
}, {
"@type": "text",
"value": {
"text": "pattern",
"locale": "en-GB"
}
}, {
"@type": "text",
"value": {
"text": "color mode",
"locale": "en-GB"
}
}]
}
capability_alexa_modecontroller['configuration'] = {
"ordered":
False,
"supportedModes": [{
"value": "LightMode.SingleColor",
"modeResources": {
"friendlyNames": [{
"@type": "text",
"value": {
"text": "normal",
"locale": "en-GB"
}
}, {
"@type": "text",
"value": {
"text": "single color",
"locale": "en-GB"
}
}]
}
}, {
"value": "LightMode.Knightrider",
"modeResources": {
"friendlyNames": [{
"@type": "text",
"value": {
"text": "knightrider",
"locale": "en-GB"
}
}, {
"@type": "text",
"value": {
"text": "night rider",
"locale": "en-GB"
}
}, {
"@type": "text",
"value": {
"text": "scroll",
"locale": "en-GB"
}
}, {
"@type": "text",
"value": {
"text": "cylon",
"locale": "en-GB"
}
}]
}
}, {
"value": "LightMode.Starburst",
"modeResources": {
"friendlyNames": [{
"@type": "text",
"value": {
"text": "stars",
"locale": "en-GB"
}
}, {
"@type": "text",
"value": {
"text": "starburst",
"locale": "en-GB"
}
}]
}
}, {
"value": "LightMode.SlowRainbow",
"modeResources": {
"friendlyNames": [{
"@type": "text",
"value": {
"text": "rainbow",
"locale": "en-GB"
}
}, {
"@type": "text",
"value": {
"text": "slow rainbow",
"locale": "en-GB"
}
}]
}
}, {
"value": "LightMode.FastRainbow",
"modeResources": {
"friendlyNames": [{
"@type": "text",
"value": {
"text": "fast rainbow",
"locale": "en-GB"
}
}, {
"@type": "text",
"value": {
"text": "chase rainbow",
"locale": "en-GB"
}
}, {
"@type": "text",
"value": {
"text": "cinema chase rainbow",
"locale": "en-GB"
}
}]
}
}, {
"value": "LightMode.Emergency",
"modeResources": {
"friendlyNames": [{
"@type": "text",
"value": {
"text": "emergency",
"locale": "en-GB"
}
}, {
"@type": "text",
"value": {
"text": "emergency lights",
"locale": "en-GB"
}
}]
}
}]
}
capability_alexa_scenecontroller = adr.create_payload_endpoint_capability(
interface=NAMESPACE_SCENE)
adr.add_payload_endpoint(friendly_name='Charlotte Light',
endpoint_id='charlotte-light-01',
manufacturer_name='Larssen Inc',
description='NeoPixel Light',
display_categories=["LIGHT"],
capabilities=[
capability_alexa,
capability_alexa_powercontroller,
capability_alexa_brightnesscontroller,
capability_alexa_colorcontroller,
capability_alexa_modecontroller,
capability_alexa_scenecontroller
])
return adr.get()
def lambda_handler(request, context):
# Dump the request for logging - check the CloudWatch logs
print('lambda_handler request -----')
print(json.dumps(request))
if context is not None:
print('lambda_handler context -----')
print(context)
# Validate we have an Alexa directive
if 'directive' not in request:
aer = AlexaResponse(
name='ErrorResponse',
payload={
'type':
'INVALID_DIRECTIVE',
'message':
'Missing key: directive, Is the request a valid Alexa Directive?'
})
return send_response(aer.get())
# Check the payload version
payload_version = request['directive']['header']['payloadVersion']
if payload_version != '3':
aer = AlexaResponse(
name='ErrorResponse',
payload={
'type': 'INTERNAL_ERROR',
'message': 'This skill only supports Smart Home API version 3'
})
return send_response(aer.get())
# Crack open the request and see what is being requested
name = request['directive']['header']['name']
namespace = request['directive']['header']['namespace']
# Handle the incoming request from Alexa based on the namespace
if namespace == 'Alexa.Authorization':
if name == 'AcceptGrant':
# Note: This sample accepts any grant request
# In your implementation you would use the code and token to get and store access tokens
grant_code = request['directive']['payload']['grant']['code']
grantee_token = request['directive']['payload']['grantee']['token']
aar = AlexaResponse(namespace='Alexa.Authorization',
name='AcceptGrant.Response')
return send_response(aar.get())
if namespace == 'Alexa.Discovery':
if name == 'Discover':
adr = AlexaResponse(namespace='Alexa.Discovery',
name='Discover.Response')
capability_alexa = adr.create_payload_endpoint_capability()
capability_alexa_power_controller = adr.create_payload_endpoint_capability(
interface='Alexa.PowerController',
supported=[{
'name': 'powerState'
}])
capability_alexa_stepSpeaker_controller = adr.create_payload_endpoint_capability(
interface='Alexa.StepSpeaker')
capability_alexa_playback_controller = adr.create_payload_endpoint_capability(
interface='Alexa.PlaybackController',
supportedOperations=['Play', 'Pause', 'Stop'])
adr.add_payload_endpoint(
friendly_name='TV',
endpoint_id='ps3-tv',
manufacturer_name='Sony',
description='PlayStation 3 TV connected with Raspberry Pi',
displayCategories=['TV'],
capabilities=[
capability_alexa, capability_alexa_power_controller,
capability_alexa_stepSpeaker_controller,
capability_alexa_playback_controller
])
return send_response(adr.get())
if namespace == 'Alexa.PowerController':
# Note: This sample always returns a success response for either a request to TurnOff or TurnOn
endpoint_id = request['directive']['endpoint']['endpointId']
power_state_value = 'OFF' if name == 'TurnOff' else 'ON'
correlation_token = request['directive']['header']['correlationToken']
try:
response = requests.post('{}toggle-power'.format(constants.url),
json={'powerState': power_state_value})
if response.status_code == 200:
speech = response.text
else:
return AlexaResponse(
name='ErrorResponse',
payload={
'type': 'INTERNAL_ERROR',
'message': 'There was an error with the endpoint.'
}).get()
except:
return AlexaResponse(name='ErrorResponse',
payload={
'type': 'ENDPOINT_UNREACHABLE',
'message': 'Unable to reach endpoint.'
}).get()
apcr = AlexaResponse(correlation_token=correlation_token)
apcr.add_context_property(namespace='Alexa.PowerController',
name='powerState',
value=power_state_value)
elif namespace == 'Alexa.StepSpeaker':
endpoint_id = request['directive']['endpoint']['endpointId']
correlation_token = request['directive']['header']['correlationToken']
try:
if name == 'AdjustVolume':
response = requests.post(
'{}adjust-volume'.format(constants.url),
json={
'volumeSteps':
request['directive']['payload']['volumeSteps']
})
else:
response = None
if response and response.status_code == 200:
speech = response.text
else:
return AlexaResponse(
name='ErrorResponse',
payload={
'type': 'INTERNAL_ERROR',
'message': 'There was an error with the endpoint.'
}).get()
except:
return AlexaResponse(name='ErrorResponse',
payload={
'type': 'ENDPOINT_UNREACHABLE',
'message': 'Unable to reach endpoint.'
}).get()
apcr = AlexaResponse(correlation_token=correlation_token)
apcr.add_context_property(
namespace='Alexa.StepSpeaker',
name='volumeSteps',
value=request['directive']['payload']['volumeSteps'])
elif namespace == 'Alexa.PlaybackController':
endpoint_id = request['directive']['endpoint']['endpointId']
correlation_token = request['directive']['header']['correlationToken']
try:
if name == 'Play' or name == 'Pause' or name == 'Stop':
response = requests.post(
'{}play-pause-stop-chromecast-youtube'.format(
constants.url),
json={'action': name})
else:
response = None
if response and response.status_code == 200:
speech = response.text
else:
return AlexaResponse(
name='ErrorResponse',
payload={
'type': 'INTERNAL_ERROR',
'message': 'There was an error with the endpoint.'
}).get()
except:
return AlexaResponse(name='ErrorResponse',
payload={
'type': 'ENDPOINT_UNREACHABLE',
'message': 'Unable to reach endpoint.'
}).get()
apcr = AlexaResponse(correlation_token=correlation_token)
apcr.add_context_property(namespace='Alexa.PlaybackController',
name='action',
value=name)
return send_response(apcr.get())
def lambda_handler(request, context):
# Dump the request for logging - check the CloudWatch logs
logger.debug('lambda_handler request -----')
logger.debug(json.dumps(request))
if context is not None:
logger.debug('lambda_handler context -----')
logger.debug(context)
# Validate we have an Alexa directive
if 'directive' not in request:
aer = AlexaResponse(
name='ErrorResponse',
payload={
'type':
'INVALID_DIRECTIVE',
'message':
'Missing key: directive, Is the request a valid Alexa Directive?'
})
return send_response(aer.get())
# Check the payload version
payload_version = request['directive']['header']['payloadVersion']
if payload_version != '3':
aer = AlexaResponse(
name='ErrorResponse',
payload={
'type': 'INTERNAL_ERROR',
'message': 'This skill only supports Smart Home API version 3'
})
return send_response(aer.get())
# Crack open the request and see what is being requested
name = request['directive']['header']['name']
namespace = request['directive']['header']['namespace']
# Handle the incoming request from Alexa based on the namespace
if namespace == 'Alexa.Authorization':
if name == 'AcceptGrant':
# Note: This sample accepts any grant request
# In your implementation you would use the code and token to get and store access tokens
grant_code = request['directive']['payload']['grant']['code']
grantee_token = request['directive']['payload']['grantee']['token']
aar = AlexaResponse(namespace='Alexa.Authorization',
name='AcceptGrant.Response')
return send_response(aar.get())
if namespace == 'Alexa.Discovery':
if name == 'Discover':
adr = AlexaResponse(namespace='Alexa.Discovery',
name='Discover.Response')
capability_alexa = adr.create_payload_endpoint_capability()
capability_alexa_powercontroller = adr.create_payload_endpoint_capability(
interface='Alexa.PowerController',
supported=[{
'name': 'powerState'
}],
proactively_reported=False,
retrievable=False)
capability_alexa_colorcontroller = adr.create_payload_endpoint_capability(
interface='Alexa.ColorController',
supported=[{
'name': 'color'
}],
proactively_reported=False,
retrievable=False)
adr.add_payload_endpoint(
friendly_name=
'Den Lights', # TODO remove hardcoded friendly name
endpoint_id=
'thomas-den-lights', # TODO removed hardcoded endpoint_id
capabilities=[
capability_alexa, capability_alexa_powercontroller,
capability_alexa_colorcontroller
])
return send_response(adr.get())
if namespace == 'Alexa.PowerController':
# Note: This sample always returns a success response for either a request to TurnOff or TurnOn
endpoint_id = request['directive']['endpoint']['endpointId']
power_state_value = 'OFF' if name == 'TurnOff' else 'ON'
correlation_token = request['directive']['header']['correlationToken']
# Check for an error when setting the state
state_set = set_device_state(endpoint_id=endpoint_id,
state='powerState',
value=power_state_value)
if not state_set:
return AlexaResponse(name='ErrorResponse',
payload={
'type':
'ENDPOINT_UNREACHABLE',
'message':
'Unable to reach endpoint database.'
}).get()
apcr = AlexaResponse(correlation_token=correlation_token)
apcr.add_context_property(namespace='Alexa.PowerController',
name='powerState',
value=power_state_value)
return send_response(apcr.get())
if namespace == 'Alexa.ColorController' and name == 'SetColor':
# Note: This sample always returns a success response for either a request to TurnOff or TurnOn
endpoint_id = request['directive']['endpoint']['endpointId']
correlation_token = request['directive']['header']['correlationToken']
# Check for an error when setting the state
color_set = set_color_state(
endpoint_id=endpoint_id,
state='color',
value=request['directive']['payload']['color'])
if not color_set:
return AlexaResponse(name='ErrorResponse',
payload={
'type':
'ENDPOINT_UNREACHABLE',
'message':
'Unable to reach endpoint database.'
}).get()
apcr = AlexaResponse(correlation_token=correlation_token)
apcr.add_context_property(
namespace='Alexa.ColorController',
name='color',
value=request['directive']['payload']['color'])
return send_response(apcr.get())
def process(self, request, client_id, client_secret):
print('LOG api_handler_directive.process -----')
# print(json.dumps(request))
response = None
# Process an Alexa directive and route to the right namespace
# Only process if there is an actual body to process otherwise return an ErrorResponse
json_body = request['body']
if json_body:
json_object = json.loads(json_body)
namespace = json_object['directive']['header']['namespace']
if namespace == "Alexa":
name = json_object['directive']['header']['name']
correlation_token = json_object['directive']['header'][
'correlationToken']
token = json_object['directive']['endpoint']['scope']['token']
endpoint_id = json_object['directive']['endpoint'][
'endpointId']
if name == 'ReportState':
# Get the User ID from the access_token
response_user_id = json.loads(
ApiAuth.get_user_id(token).read().decode('utf-8'))
result = dynamodb_aws.get_item(
TableName='APISensorEndpointDetails',
Key={'EndpointId': {
'S': endpoint_id
}})
capabilities_string = self.get_db_value(
result['Item']['Capabilities'])
capabilities = json.loads(capabilities_string)
props = []
for c in capabilities:
if not 'properties' in c:
continue
retrievable = c['properties'].get('retrievable', False)
if retrievable:
props.append(c)
print('Sending StateReport for', response_user_id,
'on endpoint', endpoint_id)
statereport_response = AlexaResponse(
name='StateReport',
endpoint_id=endpoint_id,
correlation_token=correlation_token,
token=token)
for p in props:
statereport_response.add_context_property(
namespace=p['interface'],
name=p['properties']['supported'][0]['name'],
value=DEFAULT_VAL[p['interface']])
response = statereport_response.get()
if namespace == "Alexa.Authorization":
grant_code = json_object['directive']['payload']['grant'][
'code']
grantee_token = json_object['directive']['payload']['grantee'][
'token']
# Spot the default from the Alexa.Discovery sample. Use as a default for development.
if grantee_token == 'access-token-from-skill':
user_id = "0" # <- Useful for development
response_object = {
'access_token': 'INVALID',
'refresh_token': 'INVALID',
'token_type': 'Bearer',
'expires_in': 9000
}
else:
# Get the User ID
response_user_id = json.loads(
ApiAuth.get_user_id(grantee_token).read().decode(
'utf-8'))
if 'error' in response_user_id:
print(
'ERROR api_handler_directive.process.authorization.user_id:',
response_user_id['error_description'])
return AlexaResponse(name='ErrorResponse',
payload={
'type': 'INTERNAL_ERROR',
'message': response_user_id
})
user_id = response_user_id['user_id']
print(
'LOG api_handler_directive.process.authorization.user_id:',
user_id)
# Get the Access and Refresh Tokens
api_auth = ApiAuth()
print('grant_code', grant_code, 'client_id', client_id,
'client_secret', client_secret)
response_token = api_auth.get_access_token(
grant_code, client_id, client_secret)
response_token_string = response_token.read().decode('utf-8')
print(
'LOG api_handler_directive.process.authorization.response_token_string:',
response_token_string)
response_object = json.loads(response_token_string)
if 'error' in response_object:
return AlexaResponse(name='ErrorResponse',
payload={
'type': 'INTERNAL_ERROR',
'response_object': response_object
})
# Store the retrieved from the Authorization Server
access_token = response_object['access_token']
refresh_token = response_object['refresh_token']
token_type = response_object['token_type']
expires_in = response_object['expires_in']
# Calculate expiration
expiration_utc = datetime.utcnow() + timedelta(
seconds=(int(expires_in) - 5))
# Store the User Information - This is useful for inspection during development
table = boto3.resource('dynamodb').Table('APISensorUsers')
result = table.put_item(
Item={
'UserId':
user_id,
'GrantCode':
grant_code,
'GranteeToken':
grantee_token,
'AccessToken':
access_token,
'ClientId':
client_id,
'ClientSecret':
client_secret,
'ExpirationUTC':
expiration_utc.strftime("%Y-%m-%dT%H:%M:%S.00Z"),
'RefreshToken':
refresh_token,
'TokenType':
token_type
})
if result['ResponseMetadata']['HTTPStatusCode'] == 200:
print(
'LOG api_handler_directive.process.authorization.SampleUsers.put_item:',
result)
alexa_accept_grant_response = AlexaResponse(
namespace='Alexa.Authorization',
name='AcceptGrant.Response')
response = alexa_accept_grant_response.get()
else:
error_message = 'Error creating User'
print('ERR api_handler_directive.process.authorization',
error_message)
alexa_error_response = AlexaResponse(name='ErrorResponse')
alexa_error_response.set_payload({
'type': 'INTERNAL_ERROR',
'message': error_message
})
response = alexa_error_response.get()
if namespace == "Alexa.Discovery":
# Given the Access Token, get the User ID
access_token = json_object['directive']['payload']['scope'][
'token']
# Spot the default from the Alexa.Discovery sample. Use as a default for development.
if access_token == 'access-token-from-skill':
print(
'WARN api_handler_directive.process.discovery.user_id: Using development user_id of 0'
)
user_id = "0" # <- Useful for development
else:
response_user_id = json.loads(
ApiAuth.get_user_id(access_token).read().decode(
'utf-8'))
if 'error' in response_user_id:
print(
'ERROR api_handler_directive.process.discovery.user_id: '
+ response_user_id['error_description'])
user_id = response_user_id['user_id']
print(
'LOG api_handler_directive.process.discovery.user_id:',
user_id)
adr = AlexaResponse(namespace='Alexa.Discovery',
name='Discover.Response')
# Get the list of endpoints associated with the user
table = boto3.resource('dynamodb').Table(
'APISensorEndpointDetails')
result = table.scan(FilterExpression=boto3.dynamodb.conditions.
Attr('UserId').eq(user_id))
for endpoint_details in result['Items']:
# We have an endpoint
print(
'LOG api_handler_directive.process.discovery: Found:',
endpoint_details['EndpointId'], 'for user:'******'FriendlyName'],
endpoint_id=endpoint_details['EndpointId'],
capabilities=json.loads(
endpoint_details['Capabilities']),
display_categories=json.loads(
endpoint_details['DisplayCategories']),
manufacturer_name=endpoint_details['ManufacturerName'])
response = adr.get()
else:
alexa_error_response = AlexaResponse(name='ErrorResponse')
alexa_error_response.set_payload({
'type': 'INTERNAL_ERROR',
'message': 'Empty Body'
})
response = alexa_error_response.get()
if response is None:
# response set to None indicates an unhandled directive, review the logs
alexa_error_response = AlexaResponse(name='ErrorResponse')
alexa_error_response.set_payload({
'type':
'INTERNAL_ERROR',
'message':
'Empty Response: No response processed. Unhandled Directive.'
})
response = alexa_error_response.get()
print('LOG api_handler_directive.process.response -----')
print(json.dumps(response))
return response