Axon

Axon is a message-oriented socket library for node.js heavily inspired by zeromq. For a light-weight UDP alternative you may be interested in punt.

Installation

$ npm install axon

Features

• message oriented
• automated reconnection
• light-weight wire protocol
• mixed-type arguments (strings, objects, buffers, etc)
• • unix domain socket support
• fast (~800 mb/s ~500,000 messages/s)

• Events

• close when server or connection is closed
• error (err) when an un-handled socket error occurs
• • ignored error (err) when an axon-handled socket error occurs, but is ignored
• • socket error (err) emitted regardless of handling, for logging purposes
• • reconnect attempt when a reconnection attempt is made
• connect when connected to the peer, or a peer connection is accepted
• disconnect when an accepted peer disconnects
• bind when the server is bound
• drop (msg) when a message is dropped due to the HWM
• • flush (msgs) queued when messages are flushed on connection

• Patterns

• push / pull
• pub / sub
• req / rep
• pub-emitter / sub-emitter

Mixed argument types

Backed by node-amp-message you may pass strings, objects, and buffers as arguments.

push.send('image', { w: 100, h: 200 }, imageBuffer);
pull.on('message', function(type, size, img){});

Push / Pull

PushSockets distribute messages round-robin:

var axon = require('axon');
var sock = axon.socket('push');
sock.bind(3000);
console.log('push server started');
setInterval(function(){
    sock.send('hello');
    


    
    
        

    
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