Pusher blog

3 minutes read

Introducing Watchlist: notify users when their friends are online

Rather than requiring you to apply presence on a per channel basis, the concept of Watchlist enables you to build presence functionality at the app level via Online Status notifications.

4 minutes read

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What are Presence channels? Pusher Presence channels: when and how to use them

Everything you need to know about Pusher Presence channels and how to use them to build a live “who’s online” feature.

Marketing

7 minutes read

How the Pusher team built subscription counting at scale

How the Pusher dev team built large presence views for realtime users in Pusher channels.

4 minutes read

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How to serve initial state by retrieving cached live data from an application

Find our how your application server is now able to retrieve the current cached data and define its time to live (TTL) using our HTTP API through our server SDKs.

4 minutes read

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Build an app with information-rich “Who’s online” feature

Here’s how to build apps with the who’s online feature using Pusher Presence channels and User Authentication.

Use cases

8 minutes read

Counting live users at scale with subscription_count events

Releasing the new event type in Pusher Channels: Subscription Count event! This type of event automatically provides the number of connections currently subscribed to any given channel.

4 minutes read

Announcing the new React Native SDK for Pusher Channels!

Using Pusher Channels, you can build React Native applications with realtime infrastructure for your app. Without the need for external dependencies. Check out the React Native SDK on Pusher docs.

Pusher

2 minutes read

Building user-centric applications with Pusher's new users concept

A new user-centric model for Pusher Channels. Send realtime server messages to individuals and terminate connections for malicious users.

3 minutes read

Introducing a new channel type: store realtime data values with Cache Channels

Announcing a new channel type for Pusher Channels

5 minutes read

Announcing NEW Flutter SDKs for Channels and Beams

Our official Flutter SDKs for both Channels and Beams are now live.

Pusher

4 minutes read

New Pusher Channels cluster in Brazil

Our new cluster – sa1, based in São Paulo – allows you to achieve lower latencies for realtime app users in the Latin America region.

2 minutes read

Keeping things private: Authentication vs. Authorization

When building private channels in your app, understanding authentication vs authorization is vital to sending sensitive information to the right users only.

3 minutes read

Publish events to server-side Swift applications with the new Channels SDK

Use of server-side Swift has become more widespread in recent years. Our new Swift server SDK will allow you to trigger events and fetch realtime information on your Swift server apps.