Awesome GitHub RepositoriesMiddleware Composition Layers

Hono is a lightweight web framework built on Web Standard APIs that executes across JavaScript runtimes including Cloudflare Workers, Deno, Bun, and Node.js.

This project provides a comprehensive implementation of the WebSocket protocol, enabling persistent, bidirectional communication between clients and servers. It handles the low-level complexities of the protocol, including the initial HTTP upgrade handshake and the encapsulation of data into discrete binary frames. By managing these connections, it allows applications to exchange data instantly without the overhead associated with repeated standard request cycles. The library distinguishes itself through its focus on high-frequency message exchange and concurrent connection management. It uti

Helmet is an Express.js middleware library that sets a comprehensive collection of HTTP security headers to protect web applications from common vulnerabilities like cross-site scripting and clickjacking. At its core, it provides a configurable middleware system for injecting security headers into HTTP responses, with a primary focus on Content Security Policy configuration through custom directives and report-only testing modes. The library distinguishes itself through a flexible configuration surface that supports method chaining for composing multiple headers in a single expression, as wel

Connect is an HTTP middleware framework and routing library designed as a wrapper for the Node.js HTTP server. It serves as a middleware composition engine that allows for the creation of chains of request handlers to process HTTP traffic and manage application errors. The framework enables the orchestration of pluggable functions to execute security, logic, and routing rules in a specific sequence. It provides the ability to match incoming request URLs to specific logic handlers based on path prefixes. The system covers broader capabilities including centralized error handling to ensure con

Wish is a Go library for building SSH servers, providing a middleware-based framework that handles core SSH functionality including public-key and certificate authentication, session management, and secure file transfers via SCP and SFTP. It is designed to serve as the foundation for custom SSH applications, with built-in support for hosting Git repositories over SSH and serving interactive terminal applications. What distinguishes Wish from a basic SSH server library is its composable middleware pattern, which allows developers to layer authentication, logging, and custom session handling. I

Tower is a modular service abstraction layer for the Rust programming language, providing a framework for building asynchronous request-response pipelines. It serves as a set of core components for managing backpressure, balancing loads, and abstracting service discovery. The project distinguishes itself through a layer-based middleware composition model, allowing services to be wrapped in recursive chains of decorators. This enables the declarative application of cross-cutting concerns, such as timeouts, rate limiting, and retries, in a protocol-agnostic manner. The library covers a broad r

Plug is a specification and set of primitives for building composable middleware pipelines in Elixir web applications. It provides a system for managing HTTP request pipelines and a routing engine that dispatches incoming requests to specific handlers based on methods and URL patterns. The project enables the creation of interchangeable web middleware for tasks such as authentication, logging, and session management. It also includes mechanisms for upgrading standard HTTP requests to full-duplex WebSocket connections. The capability surface covers request body parsing, static asset delivery,