socket.io 0.7.8, socket.io-client 0.7.5 released

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socket.io本体の方はちょっとよく分からない。以前書いた問題の修正はまだ取り込まれていないようなので注意
socket.io-clientは0.7.5になって単体でNodeからrequireして使うことができるようになった。

var io = require('socket.io').listen(3000);
io.sockets.on('connection', function (socket) {
    console.log('connection');
    setInterval(function () {
        socket.emit('hoge', { fuga: 'piyo' });
    }, 1000);
});

とか適当なsocket.ioサーバを立ち上げておいて、

var io = require('socket.io-client');

var socket = io.connect('http://localhost:3000');
socket.on('connect', function () {
    console.log('connect');
});
socket.on('hoge', function (data) {
    console.log(new Date() + ':' + JSON.stringify(data));
});

こんなクライアント側のNodeプログラムを動かして繋ぐことができるようになってる(0.7.4以前はたぶんrequireすることすら出来なかった)。

$ node client.js
connect
Tue Aug 09 2011 00:56:03 GMT+0900 (JST):{"fuga":"piyo"}
Tue Aug 09 2011 00:56:04 GMT+0900 (JST):{"fuga":"piyo"}
Tue Aug 09 2011 00:56:05 GMT+0900 (JST):{"fuga":"piyo"}
Tue Aug 09 2011 00:56:06 GMT+0900 (JST):{"fuga":"piyo"}
Tue Aug 09 2011 00:56:07 GMT+0900 (JST):{"fuga":"piyo"}
...

サーバ側ではこんなログが出てる。

$ node server.js
   info  - socket.io started
   debug - client authorized
   info  - handshake authorized 269741578473335295
   debug - setting request GET /socket.io/1/websocket/269741578473335295
   debug - set heartbeat interval for client 269741578473335295
   debug - client authorized for
   debug - websocket writing 1::
connection
   debug - websocket received data packet 5:1+::{"name":"newListener","args":["connect"]}
   debug - websocket received data packet 5:2+::{"name":"newListener","args":["hoge"]}
   debug - websocket writing 5:::{"name":"hoge","args":[{"fuga":"piyo"}]}
   debug - websocket writing 5:::{"name":"hoge","args":[{"fuga":"piyo"}]}
   debug - websocket writing 5:::{"name":"hoge","args":[{"fuga":"piyo"}]}
   debug - websocket writing 5:::{"name":"hoge","args":[{"fuga":"piyo"}]}
...

xhr-pollingで繋ぐこともできて、

var io = require('socket.io-client');
io.transports = ['xhr-polling'];

var socket = io.connect('http://localhost:3000');
socket.on('connect', function () {
    console.log('connect');
});
socket.on('hoge', function (data) {
    console.log(new Date() + ':' + JSON.stringify(data));
});

とやればwebsocketではなくxhr-pollingでサーバに接続するようだ。

$ node server.js
   info  - socket.io started
   debug - client authorized
   info  - handshake authorized 145573163291229429
   debug - setting request GET /socket.io/1/xhr-polling/145573163291229429
   debug - setting poll timeout
   debug - client authorized for
   debug - clearing poll timeout
   debug - xhr-polling writing 1::
   debug - set close timeout for client 145573163291229429
connection
   debug - setting request GET /socket.io/1/xhr-polling/145573163291229429
   debug - setting poll timeout
   debug - discarding transport
   debug - cleared close timeout for client 145573163291229429
   debug - xhr-polling received data packet �47�5:1+::{"name":"newListener","args":["connect"]}�44�5:2+::{"name":"newListener","args":["hoge"]}
   debug - xhr-polling received data packet �47�5:1+::{"name":"newListener","args":["connect"]}�44�5:2+::{"name":"newListener","args":["hoge"]}
   debug - clearing poll timeout
   debug - xhr-polling writing 5:::{"name":"hoge","args":[{"fuga":"piyo"}]}
   debug - set close timeout for client 145573163291229429
   debug - setting request GET /socket.io/1/xhr-polling/145573163291229429
   debug - setting poll timeout
   debug - discarding transport
   debug - cleared close timeout for client 145573163291229429
   debug - clearing poll timeout
   debug - xhr-polling writing 5:::{"name":"hoge","args":[{"fuga":"piyo"}]}
   debug - set close timeout for client 145573163291229429
   debug - setting request GET /socket.io/1/xhr-polling/145573163291229429
   debug - setting poll timeout
   debug - discarding transport
   debug - cleared close timeout for client 145573163291229429
   debug - clearing poll timeout

特にソース読み込んだわけではないし詳しく検証したわけでもないけど、結構便利に使えそうな気がする。

ローカルのNodeプログラムで外部Socket.IOサーバにWebSocketで接続する - すぎゃーんメモでやろうとしていたことが、socket.io-clientをrequireするだけで使えるようになる、のは嬉しい。