def subscription(client: AdminClient,
topic: Topic) -> Generator[Subscription, None, None]:
location = CloudZone(CloudRegion(CLOUD_REGION), ZONE_ID)
subscription_path = SubscriptionPath(PROJECT_NUMBER, location,
SUBSCRIPTION_ID)
subscription = Subscription(
name=str(subscription_path),
topic=topic.name,
delivery_config=Subscription.DeliveryConfig(
delivery_requirement=Subscription.DeliveryConfig.
DeliveryRequirement.DELIVER_IMMEDIATELY, ),
)
try:
response = client.get_subscription(subscription.name)
except NotFound:
# This subscription will start receiving the first message in the topic.
response = client.create_subscription(subscription,
BacklogLocation.BEGINNING)
yield response
try:
client.delete_subscription(response.name)
except NotFound as e:
print(e.message)
def create_lite_subscription(project_number, cloud_region, zone_id, topic_id,
subscription_id):
# [START pubsublite_create_subscription]
from google.api_core.exceptions import AlreadyExists
from google.cloud.pubsublite import AdminClient, Subscription
from google.cloud.pubsublite.types import (
CloudRegion,
CloudZone,
SubscriptionPath,
TopicPath,
)
# TODO(developer):
# project_number = 1122334455
# cloud_region = "us-central1"
# zone_id = "a"
# topic_id = "your-topic-id"
# subscription_id = "your-subscription-id"
cloud_region = CloudRegion(cloud_region)
location = CloudZone(cloud_region, zone_id)
topic_path = TopicPath(project_number, location, topic_id)
subscription_path = SubscriptionPath(project_number, location,
subscription_id)
subscription = Subscription(
name=str(subscription_path),
topic=str(topic_path),
delivery_config=Subscription.DeliveryConfig(
# Possible values for delivery_requirement:
# - `DELIVER_IMMEDIATELY`
# - `DELIVER_AFTER_STORED`
# You may choose whether to wait for a published message to be successfully written
# to storage before the server delivers it to subscribers. `DELIVER_IMMEDIATELY` is
# suitable for applications that need higher throughput.
delivery_requirement=Subscription.DeliveryConfig.
DeliveryRequirement.DELIVER_IMMEDIATELY, ),
)
client = AdminClient(cloud_region)
try:
response = client.create_subscription(subscription)
print(f"{response.name} created successfully.")
except AlreadyExists:
print(f"{subscription_path} already exists.")