• A small and fast library for doing sockets in node.js

npm run build

npm install jacquard

[TODO]

npm install --dev-only
npm run test

• small fast tcp and http library for node.js
• zero heap allocations under load
• low latency
• built in cluster mode for child workers
• built in tcp proxy for minimal copy socket proxying
• Unix Domain Sockets/Pipes
• TCP
• HTTP Pipelined requests

• SSL wrapper for socket
• Low overheader router for api developers
• Node.js/Express/Connect middleware compatibility
• HTTP/2 support
• Websocket support
• "ws" module compatibility layer
• API Gateway with Plugins
• Metrics
• Tracing

• to be small, fast and low latency
• to be robust and safe under load/attack
• to be able to serve as many API requests as nginx with lua
• to be near top of techempower json and plaintext benchmarks
• to be able to handle load of a busy API gateway when proxying to backends
• to do everything kong can but better/faster and native to JS
• to be easy to develop plugins and middlewares for

• Socket.listen
• Socket.connect
• Socket.bind
• Socket.close
• Socket.pull
• Socket.push
• Socket.write
• Socket.writeText
• Socket.setup
• Socket.setNoDelay
• Socket.pause
• Socket.resume
• Socket.setKeepAlive
• Socket.proxy
• Socket.remoteAddress

• Socket.onConnect
• Socket.onHeaders
• Socket.onBody
• Socket.onRequest
• Socket.onResponse
• Socket.onClose
• Socket.onWrite
• Socket.onData
• Socket.onError

node examples/fast
docker run -it --rm williamyeh/wrk -c 200 -t 2 -d 20 http://172.17.0.1:3000/

• 175k RPS on single Core i7
• 36 MB RSS with no gc pauses as no new garbage created
• Avg Latency 1.14ms, Max Latency 9.04ms
• CPU pegged at 100%

node examples/fast
docker run -it -v $(pwd):/foo --rm williamyeh/wrk -s /foo/bench.lua -c 2000 -t 2 -d 20 http://172.17.0.1:3000/

• 552k RPS on single Core i7
• 100 MB RSS with no gc pauses as no new garbage created
• Avg Latency 25.19ms, Max Latency 327ms
• CPU pegged at 100%