def publish_device_change(sender, **kwargs):
# get the object generating the signal and serialize it for transport
obj = kwargs.get('instance')
obj_ser = JSONRenderer().render(DeviceSerializer(obj).data)
# init the publisher with our project params - will need HH ref in the future so we can discriminate
publisher = pubsub_v1.PublisherClient()
topic_path = publisher.topic_path('pwrnet-158117', 'home-hub-message')
# publish the message
publisher.publish(topic_path, data=obj_ser.encode('utf-8'))
print('Message published...')
def _encode_data(self, data, format=None, content_type=None): # pylint: disable=redefined-builtin
"""
Encode the data returning a two tuple of (bytes, content_type)
"""
if data is None:
return ('', content_type)
assert format is None or content_type is None, (
'You may not set both `format` and `content_type`.')
if content_type:
# Content type specified explicitly, treat data as a raw bytestring
ret = force_bytes(data, settings.DEFAULT_CHARSET)
else:
format = format or self.default_format
assert format in self.renderer_classes, (
"Invalid format '{0}'. Available formats are {1}. "
"Set TEST_REQUEST_RENDERER_CLASSES to enable "
"extra request formats.".format(
format, ', '.join([
"'" + fmt + "'"
for fmt in self.renderer_classes.keys()
])))
# Use format and render the data into a bytestring
renderer = self.renderer_classes[format]()
# Customization: assume tests provide input data in correct format
# and just use the standard JSONRenderer to serialize it
if isinstance(renderer, JSONAPIRenderer):
ret = RestJSONRenderer().render(data)
else:
ret = renderer.render(data)
# Determine the content-type header from the renderer
content_type = "{0}; charset={1}".format(renderer.media_type,
renderer.charset)
# Coerce text to bytes if required.
if isinstance(ret, str):
ret = bytes(ret.encode(renderer.charset))
return ret, content_type
