Open-source alternatives to Amqp.node

This project is a C++ TCP server framework and educational socket programming guide. It provides a high-performance network library focused on event-driven architecture, implementing a reactor pattern to handle thousands of simultaneous client connections. The framework is distinguished by its multi-threaded event loop, which utilizes a main-sub reactor coordination model to distribute network events across a worker thread pool. It includes an abstraction layer for non-blocking socket I/O and event multiplexing via the epoll system call, decoupling network transport from application business

This project is a detailed analysis and study of the Nginx source code, focusing on high-performance server architecture and function call flows. It serves as a technical examination of the internal C implementation used to build high-concurrency networking systems. The project deconstructs the internal mechanisms of the web server, including the multi-process master-worker model, event-driven asynchronous I/O, and non-blocking socket communication. It analyzes the phase-based request processing lifecycle, from URI matching and header parsing to final content generation. The study covers a b

Mio is a low-level I/O library for Rust that provides an event-driven framework for monitoring multiple network sockets and file descriptors. It acts as a portable wrapper for operating system native polling systems, including epoll, kqueue, and IOCP, allowing applications to trigger events when resources are ready for reading or writing without blocking the execution thread. The library provides a non-blocking socket interface for managing TCP, UDP, and Unix sockets. It distinguishes itself through a vectored I/O implementation, enabling scatter-gather reads and writes across multiple buffer

nanomsg is a distributed messaging middleware and scalable messaging library designed for moving data between machines and processes. It functions as a socket-based communication framework that routes data across different network transport layers. The library implements scalable messaging patterns, specifically request-reply and publish-subscribe, to handle high volumes of data across distributed systems. It provides tools for network performance benchmarking to quantify messaging throughput and latency. The framework supports distributed message routing and inter-process communication usin

Kore is an event-driven web and WebSocket server framework designed for building high-performance web services and APIs in C or Python. It functions as a secure, concurrent application framework that utilizes non-blocking I/O and isolated worker processes to handle high-concurrency traffic. The project is distinguished by a security-first architecture that features OS-level process sandboxing, privilege separation, and the isolation of private encryption keys into dedicated processes. It enables zero-downtime deployments through dynamic module hot-reloading and provides automated TLS certific

Primus is a real-time communication abstraction layer and middleware framework. It provides a standardized interface for messaging that allows developers to switch between different transport engines without rewriting application logic, while also serving as a wrapper for managing socket lifecycles. The project distinguishes itself by functioning as a real-time client library generator, producing compatible client-side code based on server configurations. It further organizes data flow through virtual stream multiplexing and the ability to group connections into named communication rooms for

KCP is a low-latency transport protocol and reliability layer designed to provide TCP-like guaranteed delivery and ordering over UDP. It implements an automatic repeat request protocol to minimize network jitter and delays, prioritizing timeliness over bandwidth efficiency. The project distinguishes itself through a pluggable congestion controller and flow control logic, allowing the transport layer to be tuned for specific network environments. It includes a NAT keep-alive system that uses periodic heartbeat packets to maintain active communication paths and prevent address translation timeo

pgdog is a PostgreSQL sharding proxy, distributed SQL router, and connection pooler. It is designed to enable horizontal data distribution by splitting tables and indices across multiple independent servers to scale storage and processing capacity. The project distinguishes itself through online resharding capabilities, using logical replication to move data between shards without application downtime. It supports multiple routing strategies, including hash, list, and range-based query routing, and manages distributed atomic transactions using a two-phase commit process to ensure consistency

This project serves as a comprehensive tutorial and technical resource for developing network applications in the C programming language. It focuses on the practical application of the Berkeley socket interface, guiding users through the implementation of low-level network protocols and the management of data transmission across both connection-oriented and connectionless streams. The material distinguishes itself by covering the full lifecycle of network communication, from initializing system-level protocol stacks and resolving domain names to managing complex connection behaviors. It provi

Quantaxis is a quantitative trading framework designed for building, backtesting, and executing automated strategies across global equities, futures, and cryptocurrencies. It integrates an event-driven backtesting engine, a multi-market execution gateway for order routing, and a quantitative data pipeline for ingesting and storing multi-asset market data. The system features a Rust-accelerated financial library that utilizes Apache Arrow for high-performance technical indicator calculation and zero-copy data processing. It provides a containerized infrastructure model designed for orchestrati

Nameko is a Python microservices framework designed for building distributed systems using a service-oriented architecture. It provides a system for implementing remote procedure calls and asynchronous event broadcasting between decoupled services by utilizing the AMQP protocol and message brokers. The framework includes a managed HTTP client pool to fetch remote content while preventing resource exhaustion. It also functions as a microservice web gateway, allowing internal service logic to be exposed as external web endpoints via standard HTTP protocols. The project covers broad capabilitie

This project is a structured Node.js programming course and educational guide designed to teach JavaScript backend development. It provides a sequence of workshops and interactive tutorials that focus on the fundamentals of the Node.js runtime and its core modules. The material emphasizes asynchronous programming, specifically covering non-blocking I/O, callback patterns, and event-driven architecture. It includes a practical exploration of the core API for managing network applications, file system operations, and binary data. The curriculum covers module management and dependency resolutio

Kubernetes-based, scale-to-zero, request-driven compute

This project is a microservices reference architecture and polyglot suite designed as a containerized application demo. It provides a deployable environment that functions as a container orchestration testbed to evaluate the performance and stability of various orchestration tools. The suite implements a polyglot architecture where independent services are written in different languages, each managing its own private database. It utilizes an event-driven distributed system model, employing asynchronous messaging and decoupled data stores to coordinate workflows across separate business domain

WeiXinMPSDK is a .NET software development kit designed to integrate WeChat services, official accounts, and mini programs into applications. It provides a multi-platform bot framework and a programmatic interface to interact with official, mini, and corporate accounts across the WeChat ecosystem. The project features interface-based platform abstraction and logic unification, allowing a single codebase to target multiple target platforms. It includes a messaging middleware for routing incoming requests and a distributed caching layer using providers like Redis or Memcached to synchronize ses

CAP is a .NET distributed transaction framework and event bus designed to manage asynchronous communication in microservices. It implements the outbox pattern to ensure eventual consistency and reliable message delivery by persisting messages in local database tables until transactions commit. The framework includes a distributed message monitor and web dashboard for tracking the status of sent and received messages. It provides tools for event traffic visualization, distributed request tracing, and the ability to manually trigger retries for failed delivery attempts. The system supports var

The .NET Reactive Extensions Library is a framework for composing, querying, and transforming asynchronous data streams. It provides a non-blocking implementation of the observer pattern to manage notifications and data flows between producers and consumers, functioning as an event stream processing library. The project applies LINQ-style querying and filtering operators to asynchronous sequences. This allows for the handling of event-driven programming patterns by utilizing composable operators to process notifications as they occur. The library covers asynchronous data streaming and non-bl

Inngest is a durable execution framework and event-driven automation engine designed to orchestrate background workflows. It enables developers to build resilient, stateful processes by memoizing function steps, ensuring that long-running tasks can automatically resume from the last successful operation after failures, timeouts, or infrastructure restarts. The platform distinguishes itself through its event-driven architecture, which uses a schema-validated bus to trigger functions and coordinate complex, multi-step logic. It employs an onion-model middleware approach for cross-cutting concer

Botkit is a multi-platform chatbot framework designed to build conversational bots that operate across different messaging services using a unified interface. It provides a core system for multi-platform development, utilizing a platform adaptation layer to translate service-specific API payloads into a standardized internal format. The framework features a conversational dialog manager that coordinates multi-turn interactions through state-tracking, branching logic, and scripted flows. It employs a message processing middleware pipeline to intercept, normalize, and enrich incoming and outgoi

The AsyncAPI generator is a template-driven tool designed to transform event-driven API specification files into various technical deliverables. It functions as a schema-driven synthesis engine that automates the creation of documentation, messaging client SDKs, and project boilerplate by processing structured data through modular, reusable templates. The system distinguishes itself through a component-based rendering engine that traverses hierarchical specification data to produce consistent output. Users can extend the generation process using lifecycle hooks, which allow for the execution

KurrentDB is an event-native database designed for event sourcing and event-driven architectures. It stores events as immutable, ordered records in streams, preserving a complete audit trail and enabling temporal queries. The database uses gRPC for all client-server and inter-node communication, providing efficient binary serialization and bidirectional streaming, and supports atomic multi-stream writes that ensure consistency across multiple streams in a single transaction. The database distinguishes itself with a built-in JavaScript projection engine that transforms, filters, and aggregates

Doctrine Event Manager is a PHP library that implements a publish-subscribe pattern for decoupled application communication. It provides a simple event bus that dispatches named events to registered listeners, enabling components to communicate without direct method calls and promoting loose coupling and extensibility in PHP projects. The library manages listener callbacks in a central registry keyed by exact event name strings for fast lookup, and invokes listeners in priority sequence for controlled reaction order during event dispatch. It maintains no internal state between dispatches, rel

Choo is a minimalist frontend framework providing a tiny foundation for building web applications. It functions as an event-driven application core that decouples business logic from rendering and includes a client-side router to manage browser history and URL mapping without page reloads. The project distinguishes itself through an architecture that combines a server-side rendering engine for generating static HTML strings with a stateful UI component library. This allows for the creation of self-contained interface elements that maintain internal data and persist across global renders. The

AWS Powertools for Python is a utility framework designed for building production-ready Python functions on AWS Lambda. It provides a comprehensive suite of tools for observability, event parsing, routing, and idempotency management to streamline the development of serverless applications. The project distinguishes itself through specialized capabilities for event-driven architectures and AI agent orchestration. It enables the implementation of AI agents by exposing functions as tools via OpenAPI schemas and managing conversation states. Additionally, it features an idempotency library that p

This project is a distributed systems design framework and architecture guide. It provides technical resources for designing, deploying, and coordinating independent network services. The framework establishes a structured methodology for migrating monolithic applications into decentralized services by separating frontend and backend concerns. It serves as a reference for event-driven architecture, focusing on maintaining data consistency across network boundaries using event sourcing and local transaction records. The project covers a broad range of capabilities including distributed servic

This repository contains the technical documentation for Knative, providing comprehensive guides and references for deploying serverless workloads and event-driven workflows. It serves as a central resource for configuring request-driven autoscaling, traffic routing, and the building of decoupled systems that trigger actions based on asynchronous events. The documentation is delivered as a searchable static website rendered from Markdown files. This system utilizes versioned document branching and a continuous integration pipeline to automate the building and publishing of technical instructi

This project is a comprehensive Java backend engineering guide and technical reference focused on high-concurrency design, distributed systems, and microservices architecture. It provides detailed strategies for decomposing monolithic applications, managing service discovery, and implementing the architectural patterns required for scalable backend environments. The repository distinguishes itself through an extensive collection of big data algorithmic references and database scaling strategies. It covers memory-efficient techniques for analyzing massive datasets, such as Top-K element extrac