Go Pubsub

Basic implementation of Google Cloud's Pub/Sub in Go. Subscriber consumes 5 messages before exiting.

Based on https://cloud.google.com/pubsub/docs/quickstart-client-libraries

Set Up

Create Project and enable Pub/Sub API for the project.

Install the Google Cloud SDK https://cloud.google.com/sdk/docs/quickstart-macos.

Install the Google Cloud Go Libraries go get -u cloud.google.com/go/pubsub.

Create Server Account under Project with roles: "Pub/Sub Publisher" and "Pub/Sub Subscriber". Generate key and save into keys folder.

Create topic and subscriber

# Create topic
gcloud pubsub topics create my-topic

# Create subscriber and subscribe to topic
gcloud pubsub subscriptions create my-sub --topic my-topic

Executing

Open two Terminal windows and export GOOGLE_APPLICATION_CREDENTIALS and PROJECT.

cd go-pubsub
export GOOGLE_APPLICATION_CREDENTIALS=$(pwd)/keys/keys.json
export PROJECT=`gcloud config get-value project`

First execute subscriber

go run subscriber/sub.go

Then execute publisher

go run publisher/pub.go