def iothub_twin_sample_run():
try:
iothub_twin_method = IoTHubDeviceTwin(CONNECTION_STRING)
if (MODULE_ID is None):
# Query for device twin
twin_info = iothub_twin_method.get_twin(DEVICE_ID)
else:
# Query for module twin
twin_info = iothub_twin_method.get_twin(DEVICE_ID, MODULE_ID)
print("")
print("Twin before update :")
print("{0}".format(twin_info))
if (MODULE_ID is None):
# Update device twin
twin_info = iothub_twin_method.update_twin(DEVICE_ID, UPDATE_JSON)
else:
# Update module twin
twin_info = iothub_twin_method.update_twin(DEVICE_ID, MODULE_ID,
UPDATE_JSON)
print("")
print("Twin after update :")
print("{0}".format(twin_info))
except IoTHubError as iothub_error:
print("")
print("Unexpected error {0}" % iothub_error)
return
except KeyboardInterrupt:
print("")
print("IoTHubModuleTwin sample stopped")
class IoTHub:
def __init__(self, iothub_name, owner_key, suffix='.azure-devices.net'):
self.iothub_name = iothub_name
self.owner_key = owner_key
self.suffix = suffix
self.owner_connection_string = 'HostName={0}{1};SharedAccessKeyName=iothubowner;SharedAccessKey={2}'.format(
self.iothub_name, self.suffix, owner_key)
self.registry_manager = IoTHubRegistryManager(
self.owner_connection_string)
self.device_twin = IoTHubDeviceTwin(self.owner_connection_string)
self.__device_clients = {}
def create_device(self, device_id, primary_key='', secondary_key=''):
return self.registry_manager.create_device(
device_id, primary_key, secondary_key,
IoTHubRegistryManagerAuthMethod.SHARED_PRIVATE_KEY)
def get_device_list(self):
return self.registry_manager.get_device_list(
1000) # NOTE: this API is marked as deprecated,
# but Python SDK doesn't seem to offer
# an alternative yet (03/25/2018).
def get_device_twin(self, device_id):
return self.device_twin.get_twin(device_id)
def update_twin(self, device_id, payload):
return self.device_twin.update_twin(device_id, payload)
def _update_reboot(self):
UPDATE_JSON = "{\"properties\":{\"desired\":{\"reboot\":\"%s\"}}}"
try:
post = json.load(request.body)
msg_json = UPDATE_JSON % (str(post['reboot']))
iothub_twin_method = IoTHubDeviceTwin(CONNECTION_STRING)
twin_info = iothub_twin_method.update_twin(DEVICE_ID, msg_json)
except Exception as err:
return str(err)
return "200 OK\n"
def iothub_devicetwin():
iothub_twin_method = IoTHubDeviceTwin(CONNECTION_STRING)
twin_info = iothub_twin_method.get_twin(DEVICE_ID)
print("")
print("Device Twin before update :")
print("{0}".format(twin_info))
twin_info = iothub_twin_method.update_twin(DEVICE_ID, TWIN_MSG)
print("")
print("Device Twin after update :")
print("{0}".format(twin_info))
def _update_device_twin(self):
#self._enable_cors()
UPDATE_JSON = "{\"properties\":{\"desired\":{\"software_version\":\"%s\", \"reboot\":\"%s\", \"url\":\"%s\"}}}"
try:
post = json.load(request.body)
msg_json = UPDATE_JSON % (str(post['software_version']),
str(post['reboot']), str(post['url']))
iothub_twin_method = IoTHubDeviceTwin(CONNECTION_STRING)
twin_info = iothub_twin_method.update_twin(DEVICE_ID, msg_json)
except Exception as err:
return str(err)
return "200 OK\n"
def _update_log_time(self):
self._enable_cors()
UPDATE_JSON = "{\"properties\":{\"desired\":{\"time\":\"%s\"}}}"
try:
byte_str = request.body.read()
text_obj = byte_str.decode('UTF-8')
post = json.loads(text_obj)
msg_json = UPDATE_JSON % (str(post['time']))
iothub_twin_method = IoTHubDeviceTwin(CONNECTION_STRING)
twin_info = iothub_twin_method.update_twin(DEVICE_ID, msg_json)
except Exception as err:
return str(err)
return "200 OK\n"
def iothub_devicetwin_sample_run():
try:
iothub_twin_method = IoTHubDeviceTwin(CONNECTION_STRING)
twin_info = iothub_twin_method.get_twin(DEVICE_ID)
print("")
print("Device Twin before update :")
print("{0}".format(twin_info))
twin_info = iothub_twin_method.update_twin(DEVICE_ID, UPDATE_JSON)
print("")
print("Device Twin after update :")
print("{0}".format(twin_info))
except IoTHubError as iothub_error:
print("")
print("Unexpected error {0}" % iothub_error)
return
except KeyboardInterrupt:
print("")
print("IoTHubDeviceTwin sample stopped")
def run_e2e_twin(iothub_connection_string, testing_modules):
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)
###########################################################################
# IoTHubDeviceTwin
# act
iothub_device_twin = IoTHubDeviceTwin(IOTHUB_CONNECTION_STRING)
# verify
assert iothub_device_twin != None, "iothub_device_twin is NULL"
###########################################################################
###########################################################################
# Wait before get twin...
sleep_before_device_action()
###########################################################################
# get_twin
# act
if testing_modules == True:
twin_info = iothub_device_twin.get_twin(device_id, TEST_MODULE_ID)
else:
twin_info = iothub_device_twin.get_twin(device_id)
# verify
assert twin_info != None, "twin_info is NULL"
json_ok = twin_info.find("deviceId")
assert json_ok > 0, "twin_info does not contain deviceId tag"
json_ok = twin_info.find(device_id)
assert json_ok > 0, "twin_info does not contain the correct device id"
if testing_modules == True:
json_ok = twin_info.find("moduleId")
assert json_ok > 0, "twin_info does not contain moduleId tag"
json_ok = twin_info.find("etag")
assert json_ok > 0, "twin_info does not contain etag tag"
json_ok = twin_info.find("properties")
assert json_ok > 0, "twin_info does not contain properties tag"
###########################################################################
print("")
print("Twin before update:")
print("{0}".format(twin_info))
###########################################################################
# update_twin
# prepare
new_property_name = "telemetryInterval"
new_property_value = "42"
UPDATE_JSON = "{\"properties\":{\"desired\":{\"" + new_property_name + "\":" + new_property_value + "}}}"
# act
if testing_modules == True:
twin_info = iothub_device_twin.update_twin(device_id,
TEST_MODULE_ID,
UPDATE_JSON)
else:
twin_info = iothub_device_twin.update_twin(device_id, UPDATE_JSON)
# verify
assert twin_info != None, "twin_info is NULL"
json_ok = twin_info.find("deviceId")
assert json_ok > 0, "twin_info does not contain deviceId tag"
json_ok = twin_info.find(device_id)
assert json_ok > 0, "twin_info does not contain the correct device id"
json_ok = twin_info.find("etag")
assert json_ok > 0, "twin_info does not contain etag tag"
json_ok = twin_info.find("properties")
assert json_ok > 0, "twin_info does not contain properties tag"
json_ok = twin_info.find(new_property_name)
assert json_ok > 0, "twin_info does not contain " + new_property_name + " tag"
json_ok = twin_info.find(new_property_value)
assert json_ok > 0, "twin_info does not contain " + new_property_value
###########################################################################
print("")
print("Device Twin after update:")
print("{0}".format(twin_info))
print("")
retval = 0
except Exception as e:
print("")
print("run_e2e_twin() failed with exception: {0}".format(e))
retval = 1
finally:
# clean-up
if testing_modules == True:
iothub_registry_manager.delete_module(device_id, TEST_MODULE_ID)
iothub_registry_manager.delete_device(device_id)
return retval
def run_e2e_devicetwin(iothub_connection_string):
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)
###########################################################################
# IoTHubDeviceTwin
# act
iothub_device_twin = IoTHubDeviceTwin(IOTHUB_CONNECTION_STRING)
# verify
assert iothub_device_twin != None, "iothub_device_twin is NULL"
###########################################################################
###########################################################################
# Wait before get twin...
time.sleep(SLEEP_BEFORE_DEVICE_ACTION)
###########################################################################
# get_twin
# act
twin_info = iothub_device_twin.get_twin(device_id)
# verify
assert twin_info != None, "twin_info is NULL"
json_ok = twin_info.find("deviceId")
assert json_ok > 0, "twin_info does not contain deviceId tag"
json_ok = twin_info.find(device_id)
assert json_ok > 0, "twin_info does not contain the correct device id"
json_ok = twin_info.find("etag")
assert json_ok > 0, "twin_info does not contain etag tag"
json_ok = twin_info.find("properties")
assert json_ok > 0, "twin_info does not contain properties tag"
###########################################################################
print ( "" )
print ( "Device Twin before update:" )
print ( "{0}".format(twin_info) )
###########################################################################
# update_twin
# prepare
new_property_name = "telemetryInterval"
new_property_value = "42"
UPDATE_JSON = "{\"properties\":{\"desired\":{\"" + new_property_name + "\":" + new_property_value + "}}}"
# act
twin_info = iothub_device_twin.update_twin(device_id, UPDATE_JSON)
# verify
assert twin_info != None, "twin_info is NULL"
json_ok = twin_info.find("deviceId")
assert json_ok > 0, "twin_info does not contain deviceId tag"
json_ok = twin_info.find(device_id)
assert json_ok > 0, "twin_info does not contain the correct device id"
json_ok = twin_info.find("etag")
assert json_ok > 0, "twin_info does not contain etag tag"
json_ok = twin_info.find("properties")
assert json_ok > 0, "twin_info does not contain properties tag"
json_ok = twin_info.find(new_property_name)
assert json_ok > 0, "twin_info does not contain " + new_property_name + " tag"
json_ok = twin_info.find(new_property_value)
assert json_ok > 0, "twin_info does not contain " + new_property_value
###########################################################################
print ( "" )
print ( "Device Twin after update:" )
print ( "{0}".format(twin_info) )
print ( "" )
retval = 0
except Exception as e:
print ( "" )
print ("run_e2e_devicetwin() failed with exception: {0}".format(e))
retval = 1
finally:
# clean-up
iothub_registry_manager.delete_device(device_id)
return retval