Pub/Sub Lite API: is designed to provide reliable,many-to-many, asynchronous messaging between applications. Publisherapplications can send messages to a topic and other applications cansubscribe to that topic to receive the messages. By decoupling senders andreceivers, Google Cloud Pub/Sub allows developers to communicate betweenindependently written applications.

Compared to Google Pub/Sub, Pub/Sub Lite provides partitioned zonal datastorage with predefined capacity. Both products present a similar API, butPub/Sub Lite has more usage caveats.

See theGoogle Pub/Sub Lite docs for more details on how to activatePub/Sub Lite for your project, as well as guidance on how to choose betweenCloud Pub/Sub and Pub/Sub Lite.

• Client Library Documentation

• Product Documentation

Quick Start

In order to use this library, you first need to go through the following steps:

1. Select or create a Cloud Platform project.

2. Enable billing for your project.

3. Enable the Pub/Sub Lite API.

4. Setup Authentication.

Installation

Install this library in avirtualenv using pip.virtualenv is a tool tocreate isolated Python environments. The basic problem it addresses is one ofdependencies and versions, and indirectly permissions.

Withvirtualenv, it’s possible to install this library without needing systeminstall permissions, and without clashing with the installed systemdependencies.

Code samples and snippets

Code samples and snippets live in the samples/ folder.

Supported Python Versions

Our client libraries are compatible with all currentactive andmaintenance versions ofPython.

Python >= 3.7

Unsupported Python Versions

Python <= 3.6

If you are using anend-of-lifeversion of Python, we recommend that you update as soon as possible to an actively supported version.

Mac/Linux

pip install virtualenvvirtualenv <your-env>source <your-env>/bin/activate<your-env>/bin/pip install google-cloud-pubsublite

Windows

pip install virtualenvvirtualenv <your-env><your-env>\Scripts\activate<your-env>\Scripts\pip.exe install google-cloud-pubsublite

Next Steps

• Read theClient Library Documentation for Pub/Sub Lite APIto see other available methods on the client.

• Read thePub/Sub Lite API Product documentation to learnmore about the product and see How-to Guides.

• View thisREADME to see the full list of CloudAPIs that we cover.