Open Source Linux WebSocket Servers - Page 4

Socketify.py is a reliable, high-performance Python web framework for building large-scale app backends and microservices. With no precedents websocket performance and a really fast HTTP server that can delivery encrypted TLS 1.3 quicker than most alternative servers can do even unencrypted, cleartext messaging.

µWebSockets.js is a web server bypass for Node.js that reimplements eventing, networking, encryption, web protocols, routing and pub/sub in highly optimized C++. As such, µWebSockets.js delivers web serving for Node.js, 8.5x that of Fastify and at least 10x that of Socket.IO. It is also the built-in web server of Bun.

A simple, zero-dependency WebSocket server for Unity. The easiest way is to use the inspector. Add callbacks to the onOpen, onMessage, or onClose UnityEvent. Alternatively, you can inherit from WebSocketServer.

websocket is a minimal and idiomatic WebSocket library for Go. Minimal and idiomatic API. First class context.Context support. Fully passes the WebSocket autobahn-testsuite. Single dependency. JSON and protobuf helpers in the wsjson and wspb subpackages. Zero alloc reads and writes. Concurrent writes. Close handshake. net.Conn wrapper. Ping pong API. RFC 7692 permessage-deflate compression. Compile to Wasm. Transparent message buffer reuse with wsjson and wspb subpackages. Gorilla writes directly to a net.Conn and so duplicates features of net/http.Client. Gorilla requires registering a pong callback before sending a Ping. Compare godoc of nhooyr.io/websocket with gorilla/websocket side by side. Will enable easy HTTP/2 support in the future.

websocketd is the WebSocket daemon. It takes care of handling the WebSocket connections, launching your programs to handle the WebSockets, and passing messages between programs and web-browser. If you can run your program from the command line, you can write WebSocket endpoints. Just read incoming text from stdin and write outgoing text to stdout. Messaging is simple. Each inbound WebSocket connection runs your program in a dedicated process. Connections are isolated by process. Available for Linux, OSX, Windows, FreeBSD, OpenBSD and Solaris. Serves your static HTML, JavaScript, etc. Route different URLs to different programs. Dynamic generate content over HTTP too. Out-of-the-box support for serving content using HTTPS and WSS. Restrict which pages can make WebSocket connections. Interact with your WebSocket programs before you've built your frontend.

Zero-copy upgrade. No intermediate allocations during I/O. Low-level API which allows building your own logic of packet handling and buffers reuse. High-level wrappers and helpers around API in wsutil package, which allow to start fast without digging the protocol internals. Existing WebSocket implementations do not allow users to reuse I/O buffers between connections in clear way. This library aims to export efficient low-level interface for working with the protocol without forcing only one way it could be used. Library is tagged as v1* so its API must not be broken during some improvements or refactoring. Example applications using ws are developed in separate repository ws-examples. We can apply the same pattern to read and write structured responses through a JSON encoder and decoder.Zero-copy upgrade helps to avoid unnecessary allocations and copying while handling HTTP Upgrade request.