Joe Hanson
Senior Content Strategist, PubNub
IN THIS ARTICLE

    Pub/Sub Messaging is at the core of realtime functionality in web, mobile, and Internet of Things applications. To name a few general uses, it enables you to stream data, communicate bi-directionally, broadcast, and signal devices. Really, the use cases are endless.

    But in the simplest terms, it revolves around publish and subscribe, where messages are sent from a a publisher to any number of subscribers.

    pub sub messaging

    And in this tutorial, we’ll do just that. In 6 steps, we’ll show you how to implement pub/sub messaging at its core. In our tutorial we’ll:

    1. Install the PubNub API
    2. Input publish/subscribe keys
    3. Subscribe to a channel
    4. Publish to that channel
    5. Send data on a channel
    6. Stream data on a channel

    And that’s it!

    In the video below, Stephen and Tomomi we’ll go through the process step-by-step. If you want to follow along, check out our Pub/Sub Quick Start Tutorial for the code from the video, and use your favorite text editor and the JavaScript console.

    Building a Realtime App with Pub/Sub Messaging from PubNub on Vimeo.

    We have a number of other quick start tutorials around our core features including:

    • Presence: Track the online/offline status of users and devices in your app
    • Storage & Playback: Store realtime message streams for future retrieval and playback
    • Access Manager:Control access permissions to streams of data by person, device, or channel

    Check them out and let us know what you think!

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