nanoevents - Simple and tiny (119 bytes) event emitter library for JavaScript

•    Javascript

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Simple and tiny event emitter library for JavaScript. Methods on returns unbind function. Call it and this listener will be removed from event.

eventemitter events emit emitter event pub/sub publish reactor subscribe

emittery - Simple and modern async event emitter

•    Javascript

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It's only ~200 bytes minified and gzipped. I'm not fanatic about keeping the size at this level though.Emitting events asynchronously is important for production code where you want the least amount of synchronous operations.

event emitter eventemitter events async emit on once off listener subscribe unsubscribe pubsub tiny addlistener addeventlistener dispatch dispatcher observer trigger await promise

Distributed Publish/Subscribe (Pub/Sub) Event System

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The Web Solutions Platform (WSP) event system is a general-purpose distributed publish/subscribe event system designed for high performance and low latency. Publish/subscribe is a common communication pattern though there are many variations to solve different scenario require...

distributed-systems architecture biztalk distributed esb

MBassador - Light-weight, high-performance event bus implementing the publish subscribe pattern

•    Java

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MBassador is a light-weight, high-performance event bus implementing the publish subscribe pattern. It is designed for ease of use and aims to be feature rich and extensible while preserving resource efficiency and performance. The core of MBassador is built around a custom data structure that provides non-blocking reads and minimized lock contention for writes such that performance degradation of concurrent read/write access is minimal.

event-bus messaging message-queue pub-sub publish-subscribe

emitter - A JS EventEmitter foundation for evented code

•    Javascript

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Facebook's EventEmitter is a simple emitter implementation that prioritizes speed and simplicity. It is conceptually similar to other emitters like Node's EventEmitter, but the precise APIs differ. More complex abstractions like the event systems used on facebook.com and m.facebook.com can be built on top of EventEmitter as well DOM event systems.EventEmitter's API shares many concepts with other emitter APIs. When events are emitted through an emitter instance, all listeners for the given event type are invoked.

clientside

Faye - Simple pub/sub messaging for the web

•    Javascript

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Faye is a set of tools for simple publish-subscribe messaging between web clients. It ships with easy-to-use message routing servers for Node.js and Rack applications, and clients that can be used on the server and in the browser. It is based on the Bayeux protocol.

pub-sub messaging message-queue publish-subscribe bayeux

Luxun - A high-throughput, persistent, distributed, publish-subscribe messaging system based on memo

•    Java

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A high-throughput, persistent, distributed, publish-subscribe messaging system based on memory mapped file and Thrift RPC.

publish-subscribe message-queue pub-sub distributed thrift-rpc

golongpoll - golang long polling library

•    Go

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Golang long polling library. Makes web pub-sub easy via an HTTP long-poll server.To use, create a LongpollManager and then use it to publish events and expose an HTTP handler to subscribe to events.

messaging pub-sub message-queue

private_pub - Handle pub/sub messaging through private channels in Rails using Faye.

•    Ruby

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Private Pub is a Ruby gem for use with Rails to publish and subscribe to messages through Faye. It allows you to easily provide real-time updates through an open socket without tying up a Rails process. All channels are private so users can only listen to events you subscribe them to. Watch RailsCasts Episode 316 for a demonstration of Private Pub.

LucidJS

•    Javascript

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LucidJS is a chainable event emitter library. It offers several unique features such as set events, emitter piping, DOM node encapsulation, sub events, along with the usual event triggering and binding. LucidJS emitters also feature meta events that allow listening for event binding and event triggering. LucidJS works in both the browser and node.js.

events - Node's event emitter for all engines.

•    Javascript

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Node's event emitter for all engines.

events eventemitter eventdispatcher listeners

primus - :zap: Primus, the creator god of the transformers & an abstraction layer for real-time to prevent module lock-in

•    Javascript

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Primus, the creator god of transformers but now also known as universal wrapper for real-time frameworks. There are a lot of real-time frameworks available for Node.js and they all have different opinions on how real-time should be done. Primus provides a common low level interface to communicate in real-time using various real-time frameworks.If you deploy your application behind a reverse proxy (Nginx, HAProxy, etc.) you might need to add WebSocket specific settings to its configuration files. If you intend to use WebSockets, please ensure that these settings have been added. There are some example configuration files available in the observing/balancerbattle repository.

real-time websocket framework sockjs browserchannel polling http nodejs node abstraction engine.io comet streaming pubsub pub sub ajax xhr faye io primus prumus realtime socket socket.io sockets spark transformer transformers websockets ws uws

onfire

•    Javascript

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onfire.js is a simple events dispatcher library (just 0.9kb). simple and usefull. Binding / subscribe the event_name with callback. when has event named event_name fired, callback function will process.

onfire event-dispatcher trigger fire emitter event-subscribe event-publish dispatcher react vue.js angular component-communication

PubSubJS - Dependency free publish/subscribe for JavaScript

•    Javascript

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PubSubJS is a topic-based publish/subscribe library written in JavaScript. PubSubJS has synchronisation decoupling, so topics are published asynchronously. This helps keep your program predictable as the originator of topics will not be blocked while consumers process them.

pub/sub pubsub publish/subscribe publish subscribe

SwiftEventBus - A publish/subscribe EventBus optimized for iOS

•    Swift

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Subscribers implement event handling methods that will be called when an event is received. Post an event from any part of your code. All subscribers matching the event type will receive it.

pub-sub eventbus communication notifications thread ios

js-signals - Custom Event/Messaging system for JavaScript inspired by AS3-Signals

•    Javascript

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Custom event/messaging system for JavaScript inspired by AS3-Signals.For a more in-depth introduction read the JS-Signals Project Page and visit the links below.

js-signals signals pub/sub event publish subscribe observer

mitt - 🥊 Tiny 200 byte functional event emitter / pubsub.

•    Javascript

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Tiny 200b functional Event Emitter / pubsub.

mitt event-handlers pubsub tiny event event-bus event-listener eventemitter events

mist - A distributed, tag-based pub-sub service for modern web applications and container-driven cloud

•    Go

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Mist is a simple pub/sub based on the idea that messages are tagged. To subscribe, a client simply constructs a list of tags that it is interested in, and all messages that are tagged with all of those tags are sent to that client. A client can not only be a subscriber (with multiple active subscriptions), but also a publisher. Clients will receive messages for any tags they are subscribed, except message publish by themselves.

pub-sub nanobox tcp-client websocket-client messaging developer-tools devtools nanopack

emitter - High performance, distributed and low latency publish-subscribe platform.

•    Go

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Emitter is a free open source real-time messaging service that connects all devices. This publish-subscribe messaging API is built for speed and security. Emitter is a real-time communication service for connecting online devices. Infrastructure and APIs for IoT, gaming, apps and real-time web. At its core, emitter.io is a distributed, scalable and fault-tolerant publish-subscribe messaging platform based on MQTT protocol and featuring message storage.

pubsub networking emitter mqtt mqtt-broker realtime high-performance low-latency

Jafka - A fast and simple distributed publish-subscribe messaging system (mq)

•    Java

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Jafka mq is a distributed publish-subscribe messaging system cloned from Apache Kafka.

publish-subscribe message-queue pub-sub distributed kafka-alternative kafka-clone