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Add sample for updating a subscription. #1335

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Merged
merged 3 commits into from
Feb 2, 2018
Merged

Add sample for updating a subscription. #1335

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4001509
Add sample for updating a subscription.
noerog Jan 26, 2018
342dad9
Use Subscription type over dictionary.
noerog Jan 29, 2018
ab2ac94
Fix lint errors.
noerog Jan 29, 2018
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36 changes: 36 additions & 0 deletions pubsub/cloud-client/subscriber.py
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Original file line number Diff line number Diff line change
Expand Up @@ -89,6 +89,34 @@ def delete_subscription(project, subscription_name):
print('Subscription deleted: {}'.format(subscription_path))


def update_subscription(project, subscription_name, ack_deadline_seconds):
"""
Updates an existing Pub/Sub subscription's ackDeadlineSeconds
from 10 seconds (default). Note that certain properties of a
subscription, such as its topic, are not modifiable.
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Are the fields that are mutable and non mutable documented anywhere?

"""
subscriber = pubsub_v1.SubscriberClient()
subscription_path = subscriber.subscription_path(
project, subscription_name)

subscription = pubsub_v1.types.Subscription(
name=subscription_path,
ack_deadline_seconds=ack_deadline_seconds)

update_mask = {
'paths': {
'ack_deadline_seconds',
}
}

subscriber.update_subscription(subscription, update_mask)
result = subscriber.get_subscription(subscription_path)

print('Subscription updated: {}'.format(subscription_path))
print('New ack_deadline_seconds value is: {}'.format(
result.ack_deadline_seconds))


def receive_messages(project, subscription_name):
"""Receives messages from a pull subscription."""
subscriber = pubsub_v1.SubscriberClient()
Expand Down Expand Up @@ -183,6 +211,11 @@ def callback(message):
'delete', help=delete_subscription.__doc__)
delete_parser.add_argument('subscription_name')

update_parser = subparsers.add_parser(
'update', help=update_subscription.__doc__)
update_parser.add_argument('subscription_name')
update_parser.add_argument('ack_deadline_seconds', type=int)

receive_parser = subparsers.add_parser(
'receive', help=receive_messages.__doc__)
receive_parser.add_argument('subscription_name')
Expand Down Expand Up @@ -214,6 +247,9 @@ def callback(message):
elif args.command == 'delete':
delete_subscription(
args.project, args.subscription_name)
elif args.command == 'update':
update_subscription(
args.project, args.subscription_name, args.ack_deadline_seconds)
elif args.command == 'receive':
receive_messages(args.project, args.subscription_name)
elif args.command == 'receive-flow-control':
Expand Down