def iothub_client_init(ConString, Proto):
logging.basicConfig(filename='smartlib{0}.log'.format(dt.date.today().isocalendar()[1]), level=logging.DEBUG)
# prepare iothub client
print("ConString {0}".format(ConString))
client = IoTHubClient(ConString, Proto)
if client.protocol == IoTHubTransportProvider.HTTP:
client.set_option("timeout", TIMEOUT)
client.set_option("MinimumPollingTime", MINIMUM_POLLING_TIME)
# set the time until a message times out
client.set_option("messageTimeout", MESSAGE_TIMEOUT)
# some embedded platforms need certificate information
set_certificates(client)
# to enable MQTT logging set to 1
if client.protocol == IoTHubTransportProvider.MQTT:
client.set_option("logtrace", 0)
client.set_message_callback(
receive_message_callback, RECEIVE_CONTEXT)
if client.protocol == IoTHubTransportProvider.MQTT or client.protocol == IoTHubTransportProvider.MQTT_WS:
client.set_device_twin_callback(
device_twin_callback, TWIN_CONTEXT)
client.set_device_method_callback(
device_method_callback, METHOD_CONTEXT)
if client.protocol == IoTHubTransportProvider.AMQP or client.protocol == IoTHubTransportProvider.AMQP_WS:
client.set_connection_status_callback(
connection_status_callback, CONNECTION_STATUS_CONTEXT)
retryPolicy = IoTHubClientRetryPolicy.RETRY_INTERVAL
retryInterval = 0
client.set_retry_policy(retryPolicy, retryInterval)
print ( "SetRetryPolicy to: retryPolicy = %d" % retryPolicy)
print ( "SetRetryPolicy to: retryTimeoutLimitInSeconds = %d" % retryInterval)
retryPolicyReturn = client.get_retry_policy()
print ( "GetRetryPolicy returned: retryPolicy = %d" % retryPolicyReturn.retryPolicy)
print ( "GetRetryPolicy returned: retryTimeoutLimitInSeconds = %d" % retryPolicyReturn.retryTimeoutLimitInSeconds)
return client
def iothubClientInit(self):
# prepare iothub client
client = IoTHubClient(self.CONNECTION_STRING, PROTOCOL)
client.set_option("product_info", "HappyPath_RaspberryPi-Python")
if client.protocol == IoTHubTransportProvider.HTTP:
client.set_option("timeout", TIMEOUT)
client.set_option("MinimumPollingTime", MINIMUM_POLLING_TIME)
# set the time until a message times out
client.set_option("messageTimeout", MESSAGE_TIMEOUT)
# to enable MQTT logging set to 1
if client.protocol == IoTHubTransportProvider.MQTT:
client.set_option("logtrace", 0)
# set callback after a message is received
client.set_message_callback(self.receiveMessageCallback, RECEIVE_CONTEXT)
# if MQTT or MQTT_WS is used -> set device twin callback
if client.protocol == IoTHubTransportProvider.MQTT or client.protocol == IoTHubTransportProvider.MQTT_WS:
client.set_device_twin_callback(self.deviceTwinCallback, TWIN_CONTEXT)
client.set_device_method_callback(self.deviceMethodCallback, METHOD_CONTEXT)
return client
def iothub_client_init(self):
# prepare iothub client
client = IoTHubClient(self.connectionString,
IoTHubTransportProvider.MQTT)
# set the time until a message times out
client.set_option("messageTimeout", self.MESSAGE_TIMEOUT)
client.set_option("logtrace", 0)
client.set_message_callback(self.receive_message_callback,
self.RECEIVE_CONTEXT)
client.set_device_twin_callback(self.device_twin_callback,
self.TWIN_CONTEXT)
client.set_device_method_callback(self.device_method_callback,
self.METHOD_CONTEXT)
client.set_connection_status_callback(self.connection_status_callback,
self.CONNECTION_STATUS_CONTEXT)
retryPolicy = IoTHubClientRetryPolicy.RETRY_INTERVAL
retryInterval = 100
client.set_retry_policy(retryPolicy, retryInterval)
logger.log("SetRetryPolicy to: retryPolicy = {0}".format(retryPolicy))
logger.log(
"SetRetryPolicy to: retryTimeoutLimitInSeconds = {0}".format(
retryInterval))
retryPolicyReturn = client.get_retry_policy()
logger.log("GetRetryPolicy returned: retryPolicy = {0}".format(
retryPolicyReturn.retryPolicy))
logger.log(
"GetRetryPolicy returned: retryTimeoutLimitInSeconds = {0}\n".
format(retryPolicyReturn.retryTimeoutLimitInSeconds))
return client
def iothub_client_init(self):
log = logger.getLogger()
# prepare iothub client
log.debug("- creating the client with {0} {1} {2} {3}".format(
self.iothub_uri, self.device_id, self.security_type.name,
self.protocol.name))
client = IoTHubClient(self.iothub_uri, self.device_id,
self.security_type, self.protocol)
# set the time until a message times out
client.set_option("messageTimeout", self.MESSAGE_TIMEOUT)
client.set_option("logtrace", 0)
client.set_message_callback(self.receive_message_callback,
self.RECEIVE_CONTEXT)
client.set_device_twin_callback(self.device_twin_callback,
self.TWIN_CONTEXT)
client.set_device_method_callback(self.device_method_callback,
self.METHOD_CONTEXT)
client.set_connection_status_callback(self.connection_status_callback,
self.CONNECTION_STATUS_CONTEXT)
retryPolicy = IoTHubClientRetryPolicy.RETRY_INTERVAL
retryInterval = 100
client.set_retry_policy(retryPolicy, retryInterval)
log.info("SetRetryPolicy to: retryPolicy = {0}".format(retryPolicy))
log.info("SetRetryPolicy to: retryTimeoutLimitInSeconds = {0}".format(
retryInterval))
retryPolicyReturn = client.get_retry_policy()
log.info("GetRetryPolicy returned: retryPolicy = {0}".format(
retryPolicyReturn.retryPolicy))
log.info("GetRetryPolicy returned: retryTimeoutLimitInSeconds = {0}\n".
format(retryPolicyReturn.retryTimeoutLimitInSeconds))
return client
def iothub_client_init():
# prepare iothub client
client = IoTHubClient(CONNECTION_STRING, PROTOCOL)
client.set_option("product_info", "HappyPath_RaspberryPi-Python")
if client.protocol == IoTHubTransportProvider.HTTP:
client.set_option("timeout", TIMEOUT)
client.set_option("MinimumPollingTime", MINIMUM_POLLING_TIME)
# set the time until a message times out
client.set_option("messageTimeout", MESSAGE_TIMEOUT)
# to enable MQTT logging set to 1
# MQTT (Message Queuing Telemetry Transport) is an ISO standard, publish-subscribe based messaging protocol.
# it works on the top of the TCP/IP protocol
if client.protocol == IoTHubTransportProvider.MQTT:
client.set_option("logtrace", 0)
client.set_message_callback(receive_message_callback, RECEIVE_CONTEXT)
# Device twins store device-related information that:
# Device and back ends can use to synchronize device conditions and configuration.
# The solution back end can use to query and target long-running operations.
if client.protocol == IoTHubTransportProvider.MQTT or client.protocol == IoTHubTransportProvider.MQTT_WS:
client.set_device_twin_callback(device_twin_callback, TWIN_CONTEXT)
client.set_device_method_callback(device_method_callback, METHOD_CONTEXT)
return client
def iothub_client_init():
# prepare iothub client
client = IoTHubClient(CONNECTION_STRING, PROTOCOL)
if client.protocol == IoTHubTransportProvider.HTTP:
client.set_option("timeout", TIMEOUT)
client.set_option("MinimumPollingTime", MINIMUM_POLLING_TIME)
# set the time until a message times out
client.set_option("messageTimeout", MESSAGE_TIMEOUT)
# some embedded platforms need certificate information
set_certificates(client)
# to enable MQTT logging set to 1
if client.protocol == IoTHubTransportProvider.MQTT:
client.set_option("logtrace", 0)
client.set_message_callback(
receive_message_callback, RECEIVE_CONTEXT)
if client.protocol == IoTHubTransportProvider.MQTT or client.protocol == IoTHubTransportProvider.MQTT_WS:
client.set_device_twin_callback(
device_twin_callback, TWIN_CONTEXT)
client.set_device_method_callback(
device_method_callback, METHOD_CONTEXT)
return client
def iothub_client_init():
# prepare iothub client
client = IoTHubClient(CONNECTION_STRING, PROTOCOL)
if client.protocol == IoTHubTransportProvider.HTTP:
client.set_option("timeout", TIMEOUT)
client.set_option("MinimumPollingTime", MINIMUM_POLLING_TIME)
# set the time until a message times out
client.set_option("messageTimeout", MESSAGE_TIMEOUT)
# some embedded platforms need certificate information
set_certificates(client)
# to enable MQTT logging set to 1
if client.protocol == IoTHubTransportProvider.MQTT:
client.set_option("logtrace", 0)
client.set_message_callback(
receive_message_callback, RECEIVE_CONTEXT)
if client.protocol == IoTHubTransportProvider.MQTT or client.protocol == IoTHubTransportProvider.MQTT_WS:
client.set_device_twin_callback(
device_twin_callback, TWIN_CONTEXT)
client.set_device_method_callback(
device_method_callback, METHOD_CONTEXT)
if client.protocol == IoTHubTransportProvider.AMQP or client.protocol == IoTHubTransportProvider.AMQP_WS:
client.set_connection_status_callback(
connection_status_callback, CONNECTION_STATUS_CONTEXT)
retryPolicy = IoTHubClientRetryPolicy.RETRY_INTERVAL
retryInterval = 100
client.set_retry_policy(retryPolicy, retryInterval)
print ( "SetRetryPolicy to: retryPolicy = %d" % retryPolicy)
print ( "SetRetryPolicy to: retryTimeoutLimitInSeconds = %d" % retryInterval)
retryPolicyReturn = client.get_retry_policy()
print ( "GetRetryPolicy returned: retryPolicy = %d" % retryPolicyReturn.retryPolicy)
print ( "GetRetryPolicy returned: retryTimeoutLimitInSeconds = %d" % retryPolicyReturn.retryTimeoutLimitInSeconds)
return client
def iothub_client_init():
logger.info("Initializing iothub_client")
client = IoTHubClient(CONNECTION_STRING, PROTOCOL)
if client.protocol == IoTHubTransportProvider.MQTT:
client.set_option("logtrace", 0)
client.set_device_method_callback(device_method_callback, 0)
return client
def iothub_client_init():
global client
client = IoTHubClient(CONNECTION_STRING, PROTOCOL)
if client.protocol == IoTHubTransportProvider.HTTP:
client.set_option("timeout", TIMEOUT)
client.set_option("MinimumPollingTime", MINIMUM_POLLING_TIME)
# set the time until a message times out
client.set_option("messageTimeout", MESSAGE_TIMEOUT)
# some embedded platforms need certificate information
set_certificates(client)
# to enable MQTT logging set to 1
if client.protocol == IoTHubTransportProvider.MQTT:
client.set_option("logtrace", 0)
client.set_message_callback(
receive_message_callback, RECEIVE_CONTEXT)
if client.protocol == IoTHubTransportProvider.MQTT or client.protocol == IoTHubTransportProvider.MQTT_WS:
client.set_device_twin_callback(
device_twin_callback, TWIN_CONTEXT)
client.set_device_method_callback(
device_method_callback, METHOD_CONTEXT)
if client.protocol == IoTHubTransportProvider.AMQP or client.protocol == IoTHubTransportProvider.AMQP_WS:
client.set_connection_status_callback(
connection_status_callback, CONNECTION_STATUS_CONTEXT)
retryPolicy = IoTHubClientRetryPolicy.RETRY_INTERVAL
retryInterval = 100
client.set_retry_policy(retryPolicy, retryInterval)
print ( "SetRetryPolicy to: retryPolicy = %d" % retryPolicy)
print ( "SetRetryPolicy to: retryTimeoutLimitInSeconds = %d" % retryInterval)
retryPolicyReturn = client.get_retry_policy()
print ( "GetRetryPolicy returned: retryPolicy = %d" % retryPolicyReturn.retryPolicy)
print ( "GetRetryPolicy returned: retryTimeoutLimitInSeconds = %d" % retryPolicyReturn.retryTimeoutLimitInSeconds)
def iothub_client_init():
# prepare iothub client
client = IoTHubClient(CONNECTION_STRING, PROTOCOL)
client.set_message_callback(receive_message_callback, RECEIVE_CONTEXT)
if client.protocol == IoTHubTransportProvider.MQTT or client.protocol == IoTHubTransportProvider.MQTT_WS:
client.set_device_method_callback(device_method_callback,
METHOD_CONTEXT)
return client
def iothub_connect():
client = IoTHubClient(CONNECTION_STRING, PROTOCOL)
client.set_option('product_info', 'Adaran-Pi-Py')
# If we're using HTTP, we should set timeout (distinct from messageTimeout) and minimum polling time here
client.set_option('messageTimeout', MESSAGE_TIMEOUT)
client.set_option('logtrace', 1)
client.set_message_callback(receive_message_callback, RECEIVE_CONTEXT)
client.set_device_method_callback(device_method_callback, METHOD_CONTEXT)
return client
def main():
initialize_grovepi()
client = IoTHubClient(DEVICE_CONNECTION_STRING, PROTOCOL)
client.set_device_method_callback(device_method_cb, None)
global EXIT
while not EXIT:
print('.')
sleep(1)
print('Exiting...')
def iothub_client_init():
client = IoTHubClient(CONNECTION_STRING, PROTOCOL)
client.set_message_callback(receive_message_callback, RECEIVE_CONTEXT)
client.set_device_twin_callback(device_twin_callback, TWIN_CONTEXT)
client.set_device_method_callback(device_method_callback, METHOD_CONTEXT)
client.set_option("messageTimeout", MESSAGE_TIMEOUT)
client.set_option("logtrace", 0)
return client
def iothub_client_init():
# prepare iothub client
client = IoTHubClient(CONNECTION_STRING, PROTOCOL)
client.set_option("product_info", "RaspberryPi_test_button")
client.set_option("messageTimeout", MESSAGE_TIMEOUT)
client.set_message_callback(device_method_callback, RECEIVE_CONTEXT)
#if client.protocol == IoTHubTransportProvider.MQTT or client.protocol == IoTHubTransportProvider.MQTT_WS:
# client.set_device_twin_callback(
# device_twin_callback, TWIN_CONTEXT)
client.set_device_method_callback(device_method_callback, METHOD_CONTEXT)
return client
def iothub_client_init():
# prepare iothub client
client = IoTHubClient(CONNECTION_STRING, PROTOCOL)
# set the time until a message times out
client.set_option("messageTimeout", MESSAGE_TIMEOUT)
client.set_option("logtrace", 0)
client.set_device_method_callback(
device_method_callback,
METHOD_CONTEXT) #Anger vilken metod som anropas för att ta emot Method
client.set_message_callback(
receive_message_callback,
RECEIVE_CONTEXT) #Anger vilken medotd för hantering av meddelanden
return client
def iothub_client_init():
client = IoTHubClient(DEVICE_CONNECTION_STRING, PROTOCOL)
client.set_option("product_info", "RaspberryPi")
if client.protocol == IoTHubTransportProvider.HTTP:
client.set_option("timeout", TIMEOUT)
client.set_option("MinimumPollingTime", MINIMUM_POLLING_TIME)
client.set_option("messageTimeout", MESSAGE_TIMEOUT)
if client.protocol == IoTHubTransportProvider.MQTT:
client.set_option("logtrace", 0)
if client.protocol == IoTHubTransportProvider.MQTT or client.protocol == IoTHubTransportProvider.MQTT_WS:
client.set_device_twin_callback(device_twin_callback, TWIN_CONTEXT)
client.set_device_method_callback(device_method_callback,
METHOD_CONTEXT)
return client
def iothub_client_init():
# prepare iothub client
client = IoTHubClient(CONNECTION_STRING, PROTOCOL)
# set the time until a message times out
client.set_option("messageTimeout", MESSAGE_TIMEOUT)
#Turn on and off log tracing for the transport
client.set_option("logtrace", 0)
#Anger vilken metod som anropas för att ta emot Method
client.set_device_method_callback(device_method_callback, METHOD_CONTEXT)
#Anger vilken medotd för hantering av meddelanden
client.set_message_callback(receive_message_callback, RECEIVE_CONTEXT)
client.set_device_twin_callback(device_twin_callback, METHOD_CONTEXT)
#client.upload_blob_async(upload_to_blob, RECEIVE_CALLBACKS)
return client
class HubManager(object):
def __init__(
self,
connection_string,
protocol=IoTHubTransportProvider.MQTT):
self.client_protocol = protocol
self.client = IoTHubClient(connection_string, protocol)
if protocol == IoTHubTransportProvider.HTTP:
self.client.set_option("timeout", TIMEOUT)
self.client.set_option("MinimumPollingTime", MINIMUM_POLLING_TIME)
# set the time until a message times out
self.client.set_option("messageTimeout", MESSAGE_TIMEOUT)
# some embedded platforms need certificate information
# self.set_certificates()
self.client.set_message_callback(receive_message_callback, RECEIVE_CONTEXT)
self.client.set_device_twin_callback(device_twin_callback, TWIN_CONTEXT)
self.client.set_device_method_callback(device_method_callback, METHOD_CONTEXT)
def set_certificates(self):
from iothub_client_cert import CERTIFICATES
try:
self.client.set_option("TrustedCerts", CERTIFICATES)
print ( "set_option TrustedCerts successful" )
except IoTHubClientError as iothub_client_error:
print ( "set_option TrustedCerts failed (%s)" % iothub_client_error )
def send_event(self, event, properties, send_context):
if not isinstance(event, IoTHubMessage):
event = IoTHubMessage(bytearray(event, 'utf8'))
if len(properties) > 0:
prop_map = event.properties()
for key in properties:
prop_map.add_or_update(key, properties[key])
self.client.send_event_async(
event, send_confirmation_callback, send_context)
def send_reported_state(self, reported_state, size, user_context):
self.client.send_reported_state(
reported_state, size,
send_reported_state_callback, user_context)
def upload_to_blob(self, destinationfilename, source, size, usercontext):
self.client.upload_blob_async(
destinationfilename, source, size,
blob_upload_conf_callback, usercontext)
class HubManager(object):
def __init__(
self,
connection_string,
protocol=IoTHubTransportProvider.MQTT):
self.client_protocol = protocol
self.client = IoTHubClient(connection_string, protocol)
if protocol == IoTHubTransportProvider.HTTP:
self.client.set_option("timeout", TIMEOUT)
self.client.set_option("MinimumPollingTime", MINIMUM_POLLING_TIME)
# set the time until a message times out
self.client.set_option("messageTimeout", MESSAGE_TIMEOUT)
# some embedded platforms need certificate information
# self.set_certificates()
self.client.set_message_callback(receive_message_callback, RECEIVE_CONTEXT)
self.client.set_device_twin_callback(device_twin_callback, TWIN_CONTEXT)
self.client.set_device_method_callback(device_method_callback, METHOD_CONTEXT)
def set_certificates(self):
from iothub_client_cert import CERTIFICATES
try:
self.client.set_option("TrustedCerts", CERTIFICATES)
print ( "set_option TrustedCerts successful" )
except IoTHubClientError as iothub_client_error:
print ( "set_option TrustedCerts failed (%s)" % iothub_client_error )
def send_event(self, event, properties, send_context):
if not isinstance(event, IoTHubMessage):
event = IoTHubMessage(bytearray(event, 'utf8'))
if len(properties) > 0:
prop_map = event.properties()
for key in properties:
prop_map.add_or_update(key, properties[key])
self.client.send_event_async(
event, send_confirmation_callback, send_context)
def send_reported_state(self, reported_state, size, user_context):
self.client.send_reported_state(
reported_state, size,
send_reported_state_callback, user_context)
def upload_to_blob(self, destinationfilename, source, size, usercontext):
self.client.upload_blob_async(
destinationfilename, source, size,
blob_upload_conf_callback, usercontext)
def initialize_client(connection_string):
# prepare iothub client
client = IoTHubClient(connection_string, PROTOCOL)
client.set_option("product_info", "HappyPath_RaspberryPi-Python")
if client.protocol == IoTHubTransportProvider.HTTP:
client.set_option("timeout", TIMEOUT)
client.set_option("MinimumPollingTime", MINIMUM_POLLING_TIME)
# set the time until a message times out
client.set_option("messageTimeout", MESSAGE_TIMEOUT)
# to enable MQTT logging set to 1
if client.protocol == IoTHubTransportProvider.MQTT:
client.set_option("logtrace", 0)
client.set_message_callback(receive_message_callback, RECEIVE_CONTEXT)
if client.protocol == IoTHubTransportProvider.MQTT or client.protocol == IoTHubTransportProvider.MQTT_WS:
client.set_device_twin_callback(device_twin_callback, TWIN_CONTEXT)
client.set_device_method_callback(device_method_callback,
METHOD_CONTEXT)
return client
def iothub_client_init():
# prepare iothub client
client = IoTHubClient(CONNECTION_STRING, PROTOCOL)
client.set_option("product_info", "HappyPath_RaspberryPi-Python")
if client.protocol == IoTHubTransportProvider.HTTP:
client.set_option("timeout", TIMEOUT)
client.set_option("MinimumPollingTime", MINIMUM_POLLING_TIME)
# set the time until a message times out
client.set_option("messageTimeout", MESSAGE_TIMEOUT)
# to enable MQTT logging set to 1
if client.protocol == IoTHubTransportProvider.MQTT:
client.set_option("logtrace", 0)
client.set_message_callback(
receive_message_callback, RECEIVE_CONTEXT)
if client.protocol == IoTHubTransportProvider.MQTT or client.protocol == IoTHubTransportProvider.MQTT_WS:
client.set_device_twin_callback(
device_twin_callback, TWIN_CONTEXT)
client.set_device_method_callback(
device_method_callback, METHOD_CONTEXT)
return client
device_method_return_value.status = 404
return device_method_return_value
def send_confirmation_callback(message, result, user_context):
print("IoT Hub responded to message with status: %s" % (result))
print("Parsing Args")
args = build_argparser().parse_args()
print("connectionstring")
print(args.connectionstring)
if enable_cloud_output:
client = IoTHubClient(args.connectionstring, PROTOCOL)
client.set_device_method_callback(device_method_callback, None)
if enable_local_jpeg_output:
local_output_dir = os.environ.get("OUTPUT_DIR")
assert os.path.isdir(
local_output_dir), "Specified output directory doesn't exist"
print("writing output jpeg frames to " + local_output_dir)
# Define the JSON message to send to IoT Hub.
def report_output(frame, res_json):
json_string = json.dumps(res_json)
print("Classification output: " + json_string)
if enable_cloud_output:
message = IoTHubMessage(json_string)
print("Sending message: %s" % message.get_string())
def run_e2e_device_client(iothub_service_client_messaging, iothub_device_method, iothub_device_twin, device_id, device_connection_string, protocol, authMethod):
###########################################################################
# IoTHubClient
# prepare
# act
device_client = IoTHubClient(device_connection_string, protocol)
# verify
assert isinstance(device_client, IoTHubClient), 'Error: Invalid type returned!'
assert device_client != None, "Error: device_client is NULL"
###########################################################################
###########################################################################
# set_option
# prepare
# act
device_client.set_option("messageTimeout", DEVICE_MESSAGE_TIMEOUT)
if authMethod == IoTHubRegistryManagerAuthMethod.X509_THUMBPRINT:
device_client.set_option("x509certificate", IOTHUB_E2E_X509_CERT)
device_client.set_option("x509privatekey", IOTHUB_E2E_X509_THUMBPRINT)
if device_client.protocol == IoTHubTransportProvider.HTTP:
device_client.set_option("timeout", HTTP_TIMEOUT)
device_client.set_option("MinimumPollingTime", HTTP_MINIMUM_POLLING_TIME)
if protocol == IoTHubTransportProvider.MQTT_WS or protocol == IoTHubTransportProvider.AMQP_WS:
device_client.set_option("TrustedCerts", CERTIFICATES)
# verify
###########################################################################
###########################################################################
# set_message_callback
# prepare
# act
device_client.set_message_callback(receive_message_callback, MESSAGING_CONTEXT)
# verify
###########################################################################
if protocol == IoTHubTransportProvider.MQTT or protocol == IoTHubTransportProvider.MQTT_WS:
###########################################################################
# set_device_twin_callback
# prepare
# act
device_client.set_device_twin_callback(device_twin_callback, MESSAGING_CONTEXT)
# verify
###########################################################################
###########################################################################
# set_device_method_callback
# prepare
# act
device_client.set_device_method_callback(device_method_callback, MESSAGING_CONTEXT)
# verify
###########################################################################
###########################################################################
# update device twin
# prepare
global TWIN_CALLBACK_EVENT
global TWIN_CALLBACK_COUNTER
TWIN_CALLBACK_EVENT.clear()
TWIN_CALLBACK_COUNTER = 0
# act
sc_update_twin(iothub_device_twin, device_id)
TWIN_CALLBACK_EVENT.wait(CALLBACK_TIMEOUT)
# verify
assert TWIN_CALLBACK_COUNTER == 1, "Error: device_twin_callback callback has not been called"
###########################################################################
###########################################################################
# call device method
# prepare
global DEVICE_METHOD_EVENT
global DEVICE_METHOD_CALLBACK_COUNTER
DEVICE_METHOD_EVENT.clear()
DEVICE_METHOD_CALLBACK_COUNTER = 0
method_name = "E2EMethodName"
payload_json = "{\"method_number\":\"42\"}"
# act
sc_invoke_device_method(iothub_device_method, device_id, method_name, payload_json)
DEVICE_METHOD_EVENT.wait(CALLBACK_TIMEOUT)
# verify
assert DEVICE_METHOD_CALLBACK_COUNTER == 1, "Error: device_twin_callback callback has not been called"
###########################################################################
if protocol != IoTHubTransportProvider.AMQP \
and protocol != IoTHubTransportProvider.AMQP_WS \
and protocol != IoTHubTransportProvider.HTTP:
###########################################################################
# send_reported_state
# prepare
global REPORTED_STATE_EVENT
global REPORTED_STATE_CALLBACK_COUNTER
reported_state = "{\"newState\":\"standBy\"}"
REPORTED_STATE_EVENT.clear()
REPORTED_STATE_CALLBACK_COUNTER = 0
# act
device_client.send_reported_state(reported_state, len(reported_state), send_reported_state_callback, REPORTED_STATE_CONTEXT)
REPORTED_STATE_EVENT.wait(CALLBACK_TIMEOUT)
# verify
assert REPORTED_STATE_CALLBACK_COUNTER == 1, "Error: send_reported_state_callback has not been called"
###########################################################################
###########################################################################
# send_event_async
# prepare
global MESSAGING_MESSAGE
global MESSAGE_RECEIVE_EVENT
global MESSAGE_RECEIVE_CALLBACK_COUNTER
MESSAGING_MESSAGE = ''.join([random.choice(string.ascii_letters) for n in range(12)])
message = IoTHubMessage(bytearray(MESSAGING_MESSAGE, 'utf8'))
MESSAGE_RECEIVE_EVENT.clear()
MESSAGE_RECEIVE_CALLBACK_COUNTER = 0
# act
sc_send_message(iothub_service_client_messaging, device_id, message)
MESSAGE_RECEIVE_EVENT.wait(CALLBACK_TIMEOUT)
# verify
assert MESSAGE_RECEIVE_CALLBACK_COUNTER == 1, "Error: message has not been received"
###########################################################################
###########################################################################
# get_send_status
# prepare
status_counter = 0
status = -1;
# act
while status_counter < 1:
status = device_client.get_send_status()
print ( "Send status: {0}".format(status) )
# verify
assert status == 0, "get_send_status reported status is not IDLE"
status_counter += 1
###########################################################################
if protocol != IoTHubTransportProvider.AMQP \
and protocol != IoTHubTransportProvider.AMQP_WS:
###########################################################################
# get_last_message_receive_time
# prepare
last_receive_time = -1
# act
last_receive_time = device_client.get_last_message_receive_time()
# verify
assert last_receive_time > 0, "Error: get_last_message_receive_time failed"
###########################################################################
###########################################################################
# upload_blob_async
# prepare
global BLOB_UPLOAD_CONTEXT
global BLOB_UPLOAD_EVENT
global BLOB_UPLOAD_CALLBACK_COUNTER
destination_file_name = ''.join([random.choice(string.ascii_letters) for n in range(12)])
source = "Blob content for file upload test!"
size = 34
BLOB_UPLOAD_EVENT.clear()
BLOB_UPLOAD_CALLBACK_COUNTER = 0
# act
device_client.upload_blob_async(destination_file_name, source, size, blob_upload_conf_callback, BLOB_UPLOAD_CONTEXT)
BLOB_UPLOAD_EVENT.wait(CALLBACK_TIMEOUT)
# verify
assert BLOB_UPLOAD_CALLBACK_COUNTER == 1, "Error: blob_upload_conf_callback callback has not been called"
###########################################################################
print ("run_e2e_device_client with protocol: {0}, and authMethod: {1} finished".format(protocol, authMethod))
class IotHub:
def __init__(self, hardware, queue):
self.method_callbacks = 0
self.hardware = hardware
self.queue = queue
self._init_client()
def _init_client(self):
# Connect to iot-hub
self.client = IoTHubClient(IOTHUB_CONNECTION,
IoTHubTransportProvider.AMQP)
# Settings
self.client.set_option("messageTimeout", IOTHUB_MESSAGE_TIMEOUT)
self.client.set_device_method_callback(self.device_method_callback, 0)
def send_confirmation_callback(self, message, result, user_context):
print(
"Confirmation received for message with result {}".format(result))
print(" message_id: %s" % message.message_id)
print(" correlation_id: %s" % message.correlation_id)
def send_message(self, payload):
message_id = uuid4()
message = IoTHubMessage(bytearray(payload, 'utf8'))
self.client.send_event_async(message, self.send_confirmation_callback,
message_id)
print("Message {} accepted for transmission to IoT Hub.".format(
message_id))
return self.client.get_send_status()
# Gets invoked by message from the cloud
def device_method_callback(self, method_name, payload, user_context):
print(
"Method callback called with: methodName = {}, payload = {}, context = {}"
.format(method_name, payload, user_context))
msg = json.loads(payload)
try:
if method_name == 'list':
response = self.hardware.list_methods()
elif method_name == 'cancel':
self.queue.cancel()
response = "ok"
else:
method_payload = msg['payload'] if 'payload' in msg else {}
self.queue.append("invoke_method", {
"method": method_name,
"payload": method_payload,
})
response = "ok"
status = 200
except NotImplementedError:
response = 'Method not defined'
status = 404
except ValueError as inst:
response = inst.args
status = 400
except queue.Full:
response = "Too many items in queue"
status = 503
except Exception as inst:
response = inst.args
status = 500
return_value = DeviceMethodReturnValue()
return_value.status = status
return_value.response = json_dumps({'Response': response})
return return_value
def run_e2e_device_client(iothub_service_client_messaging, iothub_device_method, iothub_device_twin, device_id, device_connection_string, protocol, authMethod):
global IOTHUB_E2E_X509_CERT
global IOTHUB_E2E_X509_THUMBPRINT
global IOTHUB_E2E_X509_PRIVATE_KEY
global CERTIFICATES
global MESSAGING_CONTEXT
###########################################################################
# IoTHubClient
# prepare
# act
device_client = IoTHubClient(device_connection_string, protocol)
# verify
assert isinstance(device_client, IoTHubClient), 'Error: Invalid type returned!'
assert device_client != None, "Error: device_client is NULL"
###########################################################################
###########################################################################
# set_option
# prepare
# act
device_client.set_option("messageTimeout", DEVICE_MESSAGE_TIMEOUT)
if authMethod == IoTHubRegistryManagerAuthMethod.X509_THUMBPRINT:
device_client.set_option("x509certificate", IOTHUB_E2E_X509_CERT)
device_client.set_option("x509privatekey", IOTHUB_E2E_X509_PRIVATE_KEY)
if device_client.protocol == IoTHubTransportProvider.HTTP:
device_client.set_option("timeout", HTTP_TIMEOUT)
device_client.set_option("MinimumPollingTime", HTTP_MINIMUM_POLLING_TIME)
device_client.set_option("TrustedCerts", CERTIFICATES)
device_client.set_option("logtrace", True)
# verify
###########################################################################
###########################################################################
# set_message_callback
# prepare
# act
device_client.set_message_callback(receive_message_callback, MESSAGING_CONTEXT)
###########################################################################
###########################################################################
# set_connection_status_callback
# prepare
# act
device_client.set_connection_status_callback(connection_status_callback, CONNECTION_STATUS_CONTEXT)
###########################################################################
# verify
###########################################################################
if protocol == IoTHubTransportProvider.MQTT or protocol == IoTHubTransportProvider.MQTT_WS:
###########################################################################
# set_device_twin_callback
# prepare
# act
device_client.set_device_twin_callback(device_twin_callback, MESSAGING_CONTEXT)
# verify
###########################################################################
###########################################################################
# set_device_method_callback
# prepare
# act
device_client.set_device_method_callback(device_method_callback, MESSAGING_CONTEXT)
# verify
###########################################################################
###########################################################################
# update device twin
# prepare
global TWIN_CALLBACK_EVENT
global TWIN_CALLBACK_COUNTER
TWIN_CALLBACK_EVENT.clear()
TWIN_CALLBACK_COUNTER = 0
# act
sc_update_twin(iothub_device_twin, device_id)
TWIN_CALLBACK_EVENT.wait(CALLBACK_TIMEOUT)
# verify
assert TWIN_CALLBACK_COUNTER > 0, "Error: device_twin_callback callback has not been called"
###########################################################################
###########################################################################
# call device method
# prepare
global DEVICE_METHOD_EVENT
global DEVICE_METHOD_CALLBACK_COUNTER
DEVICE_METHOD_EVENT.clear()
DEVICE_METHOD_CALLBACK_COUNTER = 0
method_name = "E2EMethodName"
payload_json = "{\"method_number\":\"42\"}"
# act
sc_invoke_device_method(iothub_device_method, device_id, method_name, payload_json)
DEVICE_METHOD_EVENT.wait(CALLBACK_TIMEOUT)
# verify
assert DEVICE_METHOD_CALLBACK_COUNTER > 0, "Error: device_twin_callback callback has not been called"
###########################################################################
if protocol == IoTHubTransportProvider.AMQP \
or protocol == IoTHubTransportProvider.AMQP_WS \
or protocol == IoTHubTransportProvider.MQTT \
or protocol == IoTHubTransportProvider.MQTT_WS:
###########################################################################
# send_reported_state
# prepare
global REPORTED_STATE_EVENT
global REPORTED_STATE_CALLBACK_COUNTER
reported_state = "{\"newState\":\"standBy\"}"
REPORTED_STATE_EVENT.clear()
REPORTED_STATE_CALLBACK_COUNTER = 0
# act
device_client.send_reported_state(reported_state, len(reported_state), send_reported_state_callback, REPORTED_STATE_CONTEXT)
REPORTED_STATE_EVENT.wait(CALLBACK_TIMEOUT)
# verify
assert REPORTED_STATE_CALLBACK_COUNTER > 0, "Error: send_reported_state_callback has not been called"
###########################################################################
###########################################################################
# set_retry_policy
# get_retry_policy
# prepare
# act
retryPolicy = IoTHubClientRetryPolicy.RETRY_INTERVAL
retryInterval = 100
device_client.set_retry_policy(retryPolicy, retryInterval)
print ( "SetRetryPolicy to: retryPolicy = %d" % retryPolicy)
print ( "SetRetryPolicy to: retryTimeoutLimitInSeconds = %d" % retryInterval)
# verify
retryPolicyReturn = device_client.get_retry_policy()
assert retryPolicyReturn.retryPolicy == IoTHubClientRetryPolicy.RETRY_INTERVAL, "Error: set_retry_policy/get_retry_policy failed"
assert retryPolicyReturn.retryTimeoutLimitInSeconds == 100, "Error: set_retry_policy/get_retry_policy failed"
print ( "GetRetryPolicy returned: retryPolicy = %d" % retryPolicyReturn.retryPolicy)
print ( "GetRetryPolicy returned: retryTimeoutLimitInSeconds = %d" % retryPolicyReturn.retryTimeoutLimitInSeconds)
###########################################################################
# send_event_async
# prepare
global MESSAGING_MESSAGE
global MESSAGE_RECEIVE_EVENT
global MESSAGE_RECEIVE_CALLBACK_COUNTER
MESSAGING_MESSAGE = ''.join([random.choice(string.ascii_letters) for n in range(12)])
message = IoTHubMessage(bytearray(MESSAGING_MESSAGE, 'utf8'))
MESSAGE_RECEIVE_EVENT.clear()
MESSAGE_RECEIVE_CALLBACK_COUNTER = 0
# act
sc_send_message(iothub_service_client_messaging, device_id, message)
MESSAGE_RECEIVE_EVENT.wait(CALLBACK_TIMEOUT)
# verify
assert MESSAGE_RECEIVE_CALLBACK_COUNTER > 0, "Error: message has not been received"
###########################################################################
###########################################################################
# get_send_status
# prepare
status_counter = 0
status = -1;
# act
while status_counter < 1:
status = device_client.get_send_status()
print ( "Send status: {0}".format(status) )
# verify
assert status == 0, "get_send_status reported status is not IDLE"
status_counter += 1
###########################################################################
if protocol != IoTHubTransportProvider.AMQP \
and protocol != IoTHubTransportProvider.AMQP_WS:
###########################################################################
# get_last_message_receive_time
# prepare
last_receive_time = -1
# act
last_receive_time = device_client.get_last_message_receive_time()
# verify
assert last_receive_time > 0, "Error: get_last_message_receive_time failed"
###########################################################################
###########################################################################
# upload_blob_async
# prepare
global BLOB_UPLOAD_CONTEXT
global BLOB_UPLOAD_EVENT
global BLOB_UPLOAD_CALLBACK_COUNTER
destination_file_name = ''.join([random.choice(string.ascii_letters) for n in range(12)])
source = "Blob content for file upload test!"
size = 34
BLOB_UPLOAD_EVENT.clear()
BLOB_UPLOAD_CALLBACK_COUNTER = 0
# act
device_client.upload_blob_async(destination_file_name, source, size, blob_upload_conf_callback, BLOB_UPLOAD_CONTEXT)
BLOB_UPLOAD_EVENT.wait(CALLBACK_TIMEOUT)
# verify
assert BLOB_UPLOAD_CALLBACK_COUNTER > 0, "Error: blob_upload_conf_callback callback has not been called"
def run_e2e_devicemethod(iothub_connection_string):
global DEVICE_METHOD_USER_CONTEXT
global DEVICE_METHOD_NAME
global DEVICE_METHOD_PAYLOAD
global DEVICE_METHOD_TIMEOUT
try:
# prepare
device_id = generate_device_name()
assert isinstance(device_id, str), 'Invalid type returned!'
primary_key = ""
secondary_key = ""
auth_method = IoTHubRegistryManagerAuthMethod.SHARED_PRIVATE_KEY
iothub_registry_manager = IoTHubRegistryManager(iothub_connection_string)
new_device = iothub_registry_manager.create_device(device_id, primary_key, secondary_key, auth_method)
device_connection_string = get_device_connection_string(iothub_registry_manager, IOTHUB_CONNECTION_STRING, device_id)
device_client = IoTHubClient(device_connection_string, IoTHubTransportProvider.MQTT)
assert isinstance(device_client, IoTHubClient), 'Invalid type returned!'
assert device_client != None, "device_client is NULL"
device_client.set_option("messageTimeout", DEVICE_MESSAGE_TIMEOUT)
device_client.set_device_method_callback(device_method_callback, DEVICE_METHOD_USER_CONTEXT)
###########################################################################
# IoTHubDeviceMethod
# prepare
# act
iothub_device_method = IoTHubDeviceMethod(IOTHUB_CONNECTION_STRING)
# verify
assert iothub_device_method != None, "iothub_device_method is NULL"
###########################################################################
# Wait before invoke...
time.sleep(SLEEP_BEFORE_DEVICE_ACTION)
############################################################################
# invoke
# prepare
# act
response = iothub_device_method.invoke(device_id, DEVICE_METHOD_NAME, DEVICE_METHOD_PAYLOAD, DEVICE_METHOD_TIMEOUT)
assert response != None, "response is NULL"
assert isinstance(response, IoTHubDeviceMethodResponse), 'Invalid type returned!'
# verify
response_ok = response.payload.find(DEVICE_CLIENT_RESPONSE)
assert response_ok > 0, "response does not contain " + DEVICE_CLIENT_RESPONSE
assert response.status == 200, "response status is : " + response.status
DEVICE_METHOD_EVENT.wait(DEVICE_METHOD_CALLBACK_TIMEOUT)
assert DEVICE_CLIENT_RESPONSE.find(DEVICE_METHOD_RESPONSE_PREFIX) >= 0, "Timeout expired and device method has not been called!"
############################################################################
print ( "" )
retval = 0
except Exception as e:
print ( "" )
print ("run_e2e_devicemethod() failed with exception: {0}".format(e))
retval = 1
finally:
# clean-up
iothub_registry_manager.delete_device(device_id)
return retval
def run_e2e_method(iothub_connection_string, testing_modules):
global DEVICE_METHOD_USER_CONTEXT
global DEVICE_METHOD_NAME
global DEVICE_METHOD_PAYLOAD
global DEVICE_METHOD_TIMEOUT
try:
# prepare
device_id = generate_device_name()
assert isinstance(device_id, str), 'Invalid type returned!'
primary_key = ""
secondary_key = ""
auth_method = IoTHubRegistryManagerAuthMethod.SHARED_PRIVATE_KEY
iothub_registry_manager = IoTHubRegistryManager(
iothub_connection_string)
new_device = iothub_registry_manager.create_device(
device_id, primary_key, secondary_key, auth_method)
if testing_modules == True:
new_module = iothub_registry_manager.create_module(
device_id, primary_key, secondary_key, TEST_MODULE_ID,
auth_method)
protocol = IoTHubTransportProvider.AMQP
else:
protocol = IoTHubTransportProvider.MQTT
connection_string = get_connection_string(iothub_registry_manager,
IOTHUB_CONNECTION_STRING,
device_id, testing_modules)
device_client = IoTHubClient(connection_string, protocol)
assert isinstance(device_client,
IoTHubClient), 'Invalid type returned!'
assert device_client != None, "device_client is NULL"
device_client.set_option("messageTimeout", DEVICE_MESSAGE_TIMEOUT)
device_client.set_device_method_callback(device_method_callback,
DEVICE_METHOD_USER_CONTEXT)
###########################################################################
# IoTHubDeviceMethod
# prepare
# act
iothub_device_method = IoTHubDeviceMethod(IOTHUB_CONNECTION_STRING)
# verify
assert iothub_device_method != None, "iothub_device_method is NULL"
###########################################################################
# Wait before invoke...
sleep_before_device_action()
############################################################################
# invoke
# prepare
# act
if testing_modules == True:
response = iothub_device_method.invoke(device_id, TEST_MODULE_ID,
DEVICE_METHOD_NAME,
DEVICE_METHOD_PAYLOAD,
DEVICE_METHOD_TIMEOUT)
else:
response = iothub_device_method.invoke(device_id,
DEVICE_METHOD_NAME,
DEVICE_METHOD_PAYLOAD,
DEVICE_METHOD_TIMEOUT)
assert response != None, "response is NULL"
assert isinstance(response,
IoTHubDeviceMethodResponse), 'Invalid type returned!'
# verify
response_ok = response.payload.find(DEVICE_CLIENT_RESPONSE)
assert response_ok > 0, "response does not contain " + DEVICE_CLIENT_RESPONSE
assert response.status == 200, "response status is : " + response.status
DEVICE_METHOD_EVENT.wait(DEVICE_METHOD_CALLBACK_TIMEOUT)
assert DEVICE_CLIENT_RESPONSE.find(
DEVICE_METHOD_RESPONSE_PREFIX
) >= 0, "Timeout expired and device method has not been called!"
############################################################################
print("")
retval = 0
except Exception as e:
print("")
print("run_e2e_method() failed with exception: {0}".format(e))
retval = 1
finally:
# clean-up
iothub_registry_manager.delete_device(device_id)
return retval
class DeviceClient(object):
def __init__(self,
connection_string,
protocol=IoTHubTransportProvider.MQTT):
print("Device Client __init__ ....creating IoTHubClient connection!")
print("Connection String = %s" % connection_string)
self.client_protocol = protocol
self.client = IoTHubClient(connection_string, protocol)
if protocol == IoTHubTransportProvider.HTTP:
self.client.set_option("timeout", TIMEOUT)
self.client.set_option("MinimumPollingTime", MINIMUM_POLLING_TIME)
# set the time until a message times out
self.client.set_option("messageTimeout", MESSAGE_TIMEOUT)
# some embedded platforms need certificate information
# self.set_certificates()
self.client.set_message_callback(self.receive_message_callback,
RECEIVE_CONTEXT)
self.client.set_device_twin_callback(self.device_twin_callback,
TWIN_CONTEXT)
self.client.set_device_method_callback(self.device_method_callback,
METHOD_CONTEXT)
def set_certificates(self, client):
from iothub_client_cert import CERTIFICATES
try:
self.client.set_option("TrustedCerts", CERTIFICATES)
print("set_option TrustedCerts successful")
except IoTHubClientError as iothub_client_error:
print("set_option TrustedCerts failed (%s)" % iothub_client_error)
def send_event(self, event, properties, send_context):
if not isinstance(event, IoTHubMessage):
event = IoTHubMessage(bytearray(event, 'utf8'))
# if len(properties) > 0:
# prop_map = event.properties()
# for key in properties:
# prop_map.add_or_update(key, properties[key])
self.client.send_event_async(event, self.send_confirmation_callback,
send_context)
def send_reported_state(self, reported_state, size, user_context):
self.client.send_reported_state(reported_state, size,
self.send_reported_state_callback,
user_context)
def upload_to_blob(self, destinationfilename, source, size, usercontext):
self.client.upload_blob_async(destinationfilename, source, size,
self.blob_upload_conf_callback,
usercontext)
def send_confirmation_callback(self, message, result, user_context):
global SEND_CALLBACKS
print("Confirmation[%d] received for message with result = %s" %
(user_context, result))
map_properties = message.properties()
key_value_pair = map_properties.get_internals()
print(" Properties: %s" % key_value_pair)
SEND_CALLBACKS += 1
print(" Total calls confirmed: %d" % SEND_CALLBACKS)
def receive_message_callback(self, message, counter):
global RECEIVE_CALLBACKS
message_buffer = message.get_bytearray()
size = len(message_buffer)
print("<SimDevice> Received Message [%d]:" % counter)
print(" Data: <<<%s>>> & Size=%d" %
(message_buffer[:size].decode('utf-8'), size))
map_properties = message.properties()
key_value_pair = map_properties.get_internals()
print(" Properties: %s" % key_value_pair)
counter += 1
RECEIVE_CALLBACKS += 1
print(" Total calls received: %d" % RECEIVE_CALLBACKS)
return IoTHubMessageDispositionResult.ACCEPTED
def device_twin_callback(self, update_state, payload, user_context):
global TWIN_CALLBACKS
print(
"\nTwin callback called with:\nupdateStatus = %s\npayload = %s\ncontext = %s"
% (update_state, payload, user_context))
TWIN_CALLBACKS += 1
print("Total calls confirmed: %d\n" % TWIN_CALLBACKS)
def send_reported_state_callback(self, status_code, user_context):
global SEND_REPORTED_STATE_CALLBACKS
print(
"Confirmation for reported state received with:\nstatus_code = [%d]\ncontext = %s"
% (status_code, user_context))
SEND_REPORTED_STATE_CALLBACKS += 1
print(" Total calls confirmed: %d" % SEND_REPORTED_STATE_CALLBACKS)
def device_method_callback(self, method_name, payload, user_context):
global METHOD_CALLBACKS
print(
"\nMethod callback called with:\nmethodName = %s\npayload = %s\ncontext = %s"
% (method_name, payload, user_context))
METHOD_CALLBACKS += 1
print("Total calls confirmed: %d\n" % METHOD_CALLBACKS)
device_method_return_value = DeviceMethodReturnValue()
device_method_return_value.response = "{ \"Response\": \"This is the response from the device\" }"
device_method_return_value.status = 200
return device_method_return_value
def blob_upload_conf_callback(self, result, user_context):
global BLOB_CALLBACKS
print(
"Blob upload confirmation[%d] received for message with result = %s"
% (user_context, result))
BLOB_CALLBACKS += 1
print(" Total calls confirmed: %d" % BLOB_CALLBACKS)
def connection_status_callback(self, result, reason, user_context):
global CONNECTION_STATUS_CALLBACKS
print("Connection status changed[%d] with:" % (user_context))
print(" reason: %d" % reason)
print(" result: %s" % result)
CONNECTION_STATUS_CALLBACKS += 1
print(" Total calls confirmed: %d" % CONNECTION_STATUS_CALLBACKS)
SEND_CALLBACKS += 1
print ( " Total calls confirmed: %d" % SEND_CALLBACKS )
status, result, connect_string = sas_token.get_connection_string()
if status != return_values.OK:
print("Connection request has failed. Response: {}".format(return_values.RetValDescription(result)))
print("Quitting")
else:
print("Connection request success. String: {}".format(connect_string))
client = IoTHubClient(connect_string.encode("utf-8"), IoTHubTransportProvider.MQTT)
client.set_option("logtrace", 0)
client.set_message_callback( receive_message_callback, CONTEXT)
client.set_device_twin_callback( device_twin_callback, CONTEXT)
client.set_device_method_callback( device_method_callback, CONTEXT)
message_counter = 0
while True:
val = raw_input("Press a key\n")
if val == 'q':
break
else:
print("Sending message")
message = IoTHubMessage("Test Message")
message.message_id = "message_%d" % message_counter
message.correlation_id = "correlation_%d" % message_counter
client.send_event_async(message, send_confirmation_callback, message_counter)
message_counter += 1
