def __init__(self, **kwargs):
# Sanity check: Is our goal to use the emulator?
# If so, create a grpc insecure channel with the emulator host
# as the target.
if os.environ.get("PUBSUB_EMULATOR_HOST"):
kwargs["channel"] = grpc.insecure_channel(
target=os.environ.get("PUBSUB_EMULATOR_HOST"))
kwargs["credentials"] = AnonymousCredentials()
# The GAPIC client has mTLS logic to determine the api endpoint and the
# ssl credentials to use. Here we create a GAPIC client to help compute the
# api endpoint and ssl credentials. The api endpoint will be used to set
# `self._target`, and ssl credentials will be passed to
# `grpc_helpers.create_channel` to establish a mTLS channel (if ssl
# credentials is not None).
client_options = kwargs.get("client_options", None)
credentials = kwargs.get("credentials", None)
client_for_mtls_info = subscriber_client.SubscriberClient(
credentials=credentials, client_options=client_options)
self._target = client_for_mtls_info._transport._host
# Use a custom channel.
# We need this in order to set appropriate default message size and
# keepalive options.
if "transport" not in kwargs:
channel = kwargs.pop("channel", None)
if channel is None:
channel = grpc_helpers.create_channel(
credentials=kwargs.pop("credentials", None),
target=self.target,
ssl_credentials=client_for_mtls_info._transport.
_ssl_channel_credentials,
scopes=subscriber_client.SubscriberClient._DEFAULT_SCOPES,
options={
"grpc.max_send_message_length": -1,
"grpc.max_receive_message_length": -1,
"grpc.keepalive_time_ms": 30000,
}.items(),
)
# cannot pass both 'channel' and 'credentials'
kwargs.pop("credentials", None)
transport = subscriber_grpc_transport.SubscriberGrpcTransport(
channel=channel)
kwargs["transport"] = transport
# Add the metrics headers, and instantiate the underlying GAPIC
# client.
self._api = subscriber_client.SubscriberClient(**kwargs)
def __init__(self, **kwargs):
# Sanity check: Is our goal to use the emulator?
# If so, create a grpc insecure channel with the emulator host
# as the target.
if os.environ.get("PUBSUB_EMULATOR_HOST"):
kwargs["channel"] = grpc.insecure_channel(
target=os.environ.get("PUBSUB_EMULATOR_HOST"))
# api_endpoint wont be applied if 'transport' is passed in.
client_options = kwargs.pop("client_options", None)
if (client_options and "api_endpoint" in client_options and isinstance(
client_options["api_endpoint"], six.string_types)):
self._target = client_options["api_endpoint"]
else:
self._target = subscriber_client.SubscriberClient.SERVICE_ADDRESS
# Use a custom channel.
# We need this in order to set appropriate default message size and
# keepalive options.
if "transport" not in kwargs:
channel = kwargs.pop("channel", None)
if channel is None:
channel = grpc_helpers.create_channel(
credentials=kwargs.pop("credentials", None),
target=self.target,
scopes=subscriber_client.SubscriberClient._DEFAULT_SCOPES,
options={
"grpc.max_send_message_length": -1,
"grpc.max_receive_message_length": -1,
"grpc.keepalive_time_ms": 30000,
}.items(),
)
# cannot pass both 'channel' and 'credentials'
kwargs.pop("credentials", None)
transport = subscriber_grpc_transport.SubscriberGrpcTransport(
channel=channel)
kwargs["transport"] = transport
# Add the metrics headers, and instantiate the underlying GAPIC
# client.
self._api = subscriber_client.SubscriberClient(**kwargs)