Example of using PublisherClient's create_topic method cause TypeError #349
Description
The examples (here) show the create_topic like:
import os
from google.cloud import pubsub_v1
publisher = pubsub_v1.PublisherClient()
topic_name = 'projects/{project_id}/topics/{topic}'.format(
project_id=os.getenv('GOOGLE_CLOUD_PROJECT'),
topic='MY_TOPIC_NAME', # Set this to something appropriate.
)
publisher.create_topic(topic_name) # this is the problem
However, if you run this, you get
Stack trace
/lib/python3.8/site-packages/proto/message.py in __init__(self, mapping, ignore_unknown_fields, **kwargs)
484 else:
485 # Sanity check: Did we get something not a map? Error if so.
--> 486 raise TypeError(
487 "Invalid constructor input for %s: %r"
488 % (self.__class__.__name__, mapping,)
TypeError: Invalid constructor input for Topic: 'projects/<project_id>/topics/MY_TOPIC_NAME'
Possible solution
import os
from google.cloud import pubsub_v1
publisher = pubsub_v1.PublisherClient()
topic_name = 'projects/{project_id}/topics/{topic}'.format(
project_id=os.getenv('GOOGLE_CLOUD_PROJECT'),
topic='MY_TOPIC_NAME', # Set this to something appropriate.
)
publisher.create_topic({"name": topic_name})
or
publisher.create_topic(name=topic_name)
Environment details
- OS type and version:
MacOs Big Sur (11.2.3) - Python version:
3.8.5 - pip version:
21.0.1 google-cloud-pubsubversion:2.3.0