NewPublisher creates a new Publisher that publishes events to a PubSub topic The topic must be created before using this gateway Messages are sent in order, so the OrderingKey is set to the Aggregate ID To authenticate with PubSub, the GOOGLE_APPLICATION_CREDENTIALS environment variable must be set See https://cloud.google.com/docs/authentication/getting-started for more information.

NewPullAdapter creates a new PullAdapter that pulls events from a PubSub topic and publishes them to another publisher The provided enconder should have all the event types registered before processing events.

PublisherAdapter is an adapter that allows to use a pubsub.Publisher as an eventbus.Publisher.

PullAdapter pulls events from a PubSub topic and publishes them to a local event bus.