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edds/README.md

Created September 4, 2011 08:21
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Socket.IO example to stream tweets on a topic
Raw
README.md

A simple example to create a websocket server and stream tweets about a pre-defined subject to the page.

Installation

$ npm install socket.io, twitter

Run

$ node ./app.js

Then open http://localhost:1337/ in a browser that supports websockets (or iDevice).

Raw
app.js
var app = require('http').createServer(handler),
io = require('socket.io').listen(app),
fs = require('fs'),
sys = require('sys'),
twitter = require('twitter');
app.listen(1337);
var twit = new twitter({
consumer_key: 'CONSUMER_KEY',
consumer_secret: 'CONSUMER_SECRET',
access_token_key: 'ACCESS_TOKEN_KEY',
access_token_secret: 'ACCESS_TOKEN_SECRET'
});
function handler (req, res) {
fs.readFile(__dirname + '/index.html',
function (err, data) {
if (err) {
res.writeHead(500);
return res.end('Error loading index.html');
}
res.writeHead(200);
res.end(data);
});
}
var twee = io.of('tweet');
twit.stream('statuses/filter', { track: 'javascript' }, function(stream) {
stream.on('data', function (data) {
io.sockets.emit('tweet', data.text);
console.log('.');
});
});
Raw
index.html
<!doctype html>
<title>Socket.io Demo</title>
<div id="tweets"></div>
<script src="/socket.io/socket.io.js"></script>
<script>
var socket = io.connect('/'),
tweets = document.getElementById('tweets');
socket.on('tweet', function (data) {
tweets.innerHTML = tweets.innerHTML + '<br>' + data;
});
</script>
@ifnullzero
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I tried this code...it doesn't seem to work for me. When I change the console.log in app.js and make it display the incoming text (data.text) it shows correctly in the shell, but it does not get passed to the HTML page. Does this work for anyone else, if so how did you make it work?

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