RESTful publish/subscribe toolkit including broker, publisher and subscriber

Server for sending messages by publish-subscribe, and whisper.

Strictly typed publish/subscribe utilities.

Publish-subscribe topic based pattern and RPC over AMQP

Event publish - subscribe mechanism as JavaScript library using Observable. You can publish your event along with any data to all the subscribers of your event. This library also supports historical published values for the subscribers.

Javascript implementation of the Publish/Subscribe pattern using socket.io.

A Redis Publish-Subscribe wrapper, with message queries

A Publish / Subscribe plugin for aurelia framework.

Publish/subscribe client for the Polkadot Statement Store with host-first transport and topic-based routing

Publish & Subscribe Real-time Messaging with Webpubsub

Nostr-based peer discovery for Lobstah: publish, subscribe, NIP-09 unannounce. Wraps nostr-tools.

Transport-agnostic cross-process publish/subscribe primitive for FuryStack

A package/service to provide publish/subscribe pattern for communication in Angular

A publish/subscribe API similar to that in node_redis, minus the redis

Typed Kafka adapter (over kafkajs) for the Story Object Model (SOM) v0.3 bus: validated publish/subscribe and a staging approve/reject gate.

Task and Message Queues with Multiple Providers

Multiple implementations of Publish-Subscribe.

tribe.pubsub is a powerful publish / subscribe message bus with message filtering and facets.

A plugin for the Serverless framework that enables easier configuration for publish/subscribe pattern

Dependency free publish/subscribe library minus hierarchical topic support.