def test_subscribe_resources(self):
import logging
logging.basicConfig(level=logging.DEBUG)
# an example: subscribing to resource value changes
# creates an Observer listening to resource value changes for devices
# whose id starts with `016` and resource paths start with `/3/0/`
from mbed_cloud import ConnectAPI
api = ConnectAPI()
# prepare a channel
channel = api.subscribe.channels.ResourceValues(device_id='016*', resource_path='/3/0/*')
# start listening for updates
observer = api.subscribe(channel)
# on the first update for the channel, block for the specified timeout
print(observer.next().block(timeout=120000))
def test_subscribe_device_state(self):
# an example: subscribing to device state changes
# creates an Observer listening to device state changes for devices
# whose id starts with `016`
from mbed_cloud import ConnectAPI
api = ConnectAPI()
# prepare a channel
channel = api.subscribe.channels.DeviceStateChanges(
device_id='016*',
# here, `channel` refers to the filterable device state received from
# the notification system
channel=[
api.subscribe.channels.ChannelIdentifiers.registrations,
api.subscribe.channels.ChannelIdentifiers.registrations_expired
]
)
# start listening for updates
observer = api.subscribe(channel)
# on the first update for the channel, block for the specified timeout
print(observer.next().block(timeout=120000))
def test_subscribe(self):
# an example: subscribe to resource values
from mbed_cloud import ConnectAPI
# Create an instance of the Connect API
connect_api = ConnectAPI()
# Configure a subscription to receive resource value changes on all devices
channel = connect_api.subscribe.channels.ResourceValues(device_id="*")
# Contact Pelion Device Management to actually make the configured subscription
observer = connect_api.subscribe(channel)
# Print the subscription notifications received
while True:
print(observer.next().block())
# end of example
break
connect_api.subscribe.unsubscribe_all()
