In this post, we will explore how we can use Google Cloud Platform’s (GCP) Pub/Sub service in combination with a Spring Boot application using Spring Integration. We will send a message to a sender application which publishes the message to a Topic where a receiver application receives the messages of a Subscription.
Introduction
GCP Pub/Sub is basically just like any other messaging system. You can send a message to a Topic where it is persisted, then a subscriber consumes the message, and after acknowledgment, the message is removed.