Class PubsubMessage (2.21.0)

Version 2.21.0

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PubsubMessage(mapping=None, *, ignore_unknown_fields=False, **kwargs)

A message that is published by publishers and consumed by subscribers. The message must contain either a non-empty data field or at least one attribute. Note that client libraries represent this object differently depending on the language. See the corresponding client library documentation <https://cloud.google.com/pubsub/docs/reference/libraries>__ for more information. See quotas and limits for more information about message limits.

Attributes
Name	Description
data :noindex:	bytes Optional. The message data field. If this field is empty, the message must contain at least one attribute.
attributes :noindex:	MutableMapping[str, str] Optional. Attributes for this message. If this field is empty, the message must contain non-empty data. This can be used to filter messages on the subscription.
message_id :noindex:	str ID of this message, assigned by the server when the message is published. Guaranteed to be unique within the topic. This value may be read by a subscriber that receives a PubsubMessage via a Pull call or a push delivery. It must not be populated by the publisher in a Publish call.
publish_time :noindex:	google.protobuf.timestamp_pb2.Timestamp The time at which the message was published, populated by the server when it receives the Publish call. It must not be populated by the publisher in a Publish call.
ordering_key :noindex:	str Optional. If non-empty, identifies related messages for which publish order should be respected. If a Subscription has enable_message_ordering set to true, messages published with the same non-empty ordering_key value will be delivered to subscribers in the order in which they are received by the Pub/Sub system. All PubsubMessage\ s published in a given PublishRequest must specify the same ordering_key value. For more information, see `ordering messages

Classes

AttributesEntry

AttributesEntry(mapping=None, *, ignore_unknown_fields=False, **kwargs)

The abstract base class for a message.

Parameters
Name	Description
kwargs	dict Keys and values corresponding to the fields of the message.
mapping	Union[dict, .Message] A dictionary or message to be used to determine the values for this message.
ignore_unknown_fields	Optional(bool) If True, do not raise errors for unknown fields. Only applied if mapping is a mapping type or there are keyword parameters.