pubsub

Google Cloud Pub/Sub Kotlin Sample

Description

Google Cloud Pub/Sub is a fully-managed real-time messaging service that allows you to send and receive messages between independent applications. This simple Kotlin command-line application demonstrates how to access the Pub/Sub API using the Google Cloud Client Library for Java.

Quickstart

Setup

• Enable Pub/Sub API.
• Set up authentication.

Build

• Clone the repository

  git clone https://github.com/GoogleCloudPlatform/kotlin-samples
  cd kotlin-samples/pubsub

• Build the project with Gradle Wrapper:

  # run with "-info" flag to print potential errors
  ./gradlew build -info

You should now have a 'pubsub.jar' file under build/libs/

Create a new topic

java -jar build/libs/pubsub.jar create <topic>

Create a subscription

java -jar build/libs/pubsub.jar sub <topic> <subscription>

Publish messages

java -jar build/libs/pubsub.jar pub <topic> <count>

Receive messages

java -jar build/libs/pubsub.jar listen <subscription>

Subscriber will continue to listen on the topic for 5 minutes and print out message id and data as messages are received.

Delete a topic

java -jar build/libs/pubsub.jar del-topic <topic>

Delete a subscription

java -jar build/libs/pubsub.jar del-sub <subscription>

Testing

Run the test with Gradle Wrapper

./gradlew test

Contributing changes

• See CONTRIBUTING.md

Licensing

• See LICENSE