Web 消息总线 JetBus
Jet 是一个用于 Web 的轻量级和实时的消息总线。支持浏览器和 Node.js node-jet，提供 Lua 版本 lua-jet 和基于 Arduino 的版本 Arduino-Jet。
示例代码：
varjet=require('node-jet');
varpeer=newjet.Peer({
url:'ws://jet.nodejitsu.com:80'
});
peer.connect().then(function(){
console.log('peerisconnectedtodaemon');
});
varmachineName=newjet.State('machine/name','animal');
machineName.on('set',function(newName){
setMachineName(newName);//doessomethingappropriate
});
peer.add(machineName).then(function(){
console.log('machine/namehasbeenaddedtodaemon');
}).catch(function(err){
console.log('couldnotaddmachine/nametodaemon',err);
});
//addastate
varcpuLoad=newjet.State('cpu/load',readCpuLoad());
peer.add(cpuLoad).then(function(){
//asyncpostnewvalue
setTimeout(function(){
cpuLoad.value(readCpuLoad());
},3000);
});
添加方法：
//addamethod
vargreet=newjet.Method('greet');
greet.on('call',function(name){
if(name.first==='John'){
throw'Johnisabadguy!';
}
vargreeting='Hello'+name.first+''+name.last;
console.log(greeting);
returngreeting;
});
peer.add(greet);