Cloud Pub/Sub Basics using gcloud¶

Step-01: Introduction¶

gcloud: Create Pub/Sub Topic
gcloud: Create Pub/Sub Subscription
gcloud: Publish Messages
gcloud: Pull Messages in Subscription and Acknowledge

Step-02: gcloud: Create Pub/Sub Topic, Subscription¶

# Set Project
gcloud config set project PROJECT_ID
gcloud config set project gcplearn9

# Create Cloud Pub/Sub Topic
gcloud pubsub topics create mytopic2

# Create Cloud Pub/Sub Subscription
gcloud pubsub subscriptions create mysubscription2 --topic mytopic2

# Review Topic and Subscription in Web Console
1. Go to Cloud Pub/Sub -> mytopic2
2. Go to Cloud Pub/Sub -> mysubscription2

Step-03: gcloud: Publish Messages¶

# Publish Message-1
gcloud pubsub topics publish projects/gcplearn9/topics/mytopic2 --message="hello kalyan 1" 
gcloud pubsub topics publish projects/gcplearn9/topics/mytopic2 --message="hello kalyan 2" 
gcloud pubsub topics publish projects/gcplearn9/topics/mytopic2 --message="hello kalyan 3" 

# Pull all messages from subscription: mysubscription3
gcloud pubsub subscriptions pull mysubscription2
gcloud pubsub subscriptions pull mysubscription2 —-auto-ack