Thepublish-subscribe pattern (short:pubsub) is an event handling and messaging pattern where the consumersubscribes to the provider, which in return can thenpublish a message that can be picked up and processed by each subscribed consumer.

A micro library providing Ruby objects with Publish-Subscribe capabilities

• UpdatedAug 15, 2024
• Ruby

Open source implementation of OPC UA (OPC Unified Architecture) aka IEC 62541 licensed under Mozilla Public License v2.0

• UpdatedMar 25, 2025
• C

Eclipse iceoryx™ - true zero-copy inter-process-communication

• UpdatedMar 14, 2025
• C++

Event Dispatcher and callback list for C++

• UpdatedDec 8, 2024
• C++

Eclipse iceoryx2™ - true zero-copy inter-process-communication in pure Rust

• UpdatedMar 27, 2025
• Rust

Logical Replication extension for PostgreSQL 17, 16, 15, 14, 13, 12, 11, 10, 9.6, 9.5, 9.4 (Postgres), providing much faster replication than Slony, Bucardo or Londiste, as well as cross-version upgrades.

• UpdatedSep 23, 2024
• C

📦 eCAL - enhanced Communication Abstraction Layer. A high performance publish-subscribe, client-server cross-plattform middleware.

• UpdatedMar 27, 2025
• C++

Fast C++ IPC using shared memory

• UpdatedAug 15, 2022
• C++

An implementation of Actor, Publish-Subscribe, and CSP models in one rather small C++ framework. With performance, quality, and stability proved by years in the production.

• UpdatedMar 9, 2025
• C++

The Web Application Messaging Protocol

• UpdatedJul 25, 2024
• Makefile

A Prometheus exporter for NATS metrics

• UpdatedMar 23, 2025
• Go

PHP Service Bus (publish-subscribe pattern) implementation

• UpdatedFeb 4, 2025
• PHP

Every developer deserves the right of creating microservices without using any framework 🤍

• UpdatedJul 16, 2023
• C#

Realtime Message Bus for the Web. Javascript Implementation

• UpdatedOct 1, 2024
• TypeScript

Distributed publish-subscribe data service and Mles protocol reference implementation on Rust, Warp and Serde

• UpdatedMar 27, 2025
• Rust

Notification broadcaster library

• UpdatedMay 5, 2022
• Go

Object Oriented Internet - C# deliverables supporting a new Machine To Machine (M2M) communication architecture

• UpdatedApr 11, 2023
• C#

Bondy is an open source, always-on and scalable application networking platform connecting all elements of a distributed application—offering service and event mesh capabilities combined. Bondy implements the open Web Application Messaging Protocol (WAMP) and is written in Erlang.

• UpdatedMar 12, 2025
• Erlang

Nuwber's RabbitEvents provides a simple observer implementation, allowing you to publishing and handling for various events that occur in your applications. For example, if you need to react to some event occurred in another API.

• UpdatedFeb 28, 2025
• PHP

💬 Publish-Subscribe (a.k.a Pub/Sub, EventBus) library for Android and JVM built with Coroutines

• UpdatedAug 14, 2021
• Kotlin