Created
March 6, 2013 02:47
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Old server-sent event hello world timer test.
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8" /> | |
| </head> | |
| <body> | |
| <script> | |
| var source = new EventSource('/events'); | |
| source.onmessage = function(e) { | |
| document.body.innerHTML += e.data + '<br>'; | |
| }; | |
| </script> | |
| </body> | |
| </html> |
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| var fs = require('fs'); | |
| var http = require('http'); | |
| var sys = require('sys'); | |
| var url = require('url'); | |
| function debugHeaders(req) { | |
| sys.puts('URL: ' + req.url); | |
| for (var key in req.headers) { | |
| sys.puts(key + ': ' + req.headers[key]); | |
| } | |
| sys.puts('\n\n'); | |
| } | |
| var port = 8000; | |
| var ip = "localhost"; | |
| http.createServer(function(req, res) { | |
| debugHeaders(req); | |
| var uri = url.parse(req.url).pathname; | |
| console.log(uri); | |
| if (req.headers.accept && req.headers.accept == 'text/event-stream') { | |
| if (req.url == '/events') { | |
| sendSSE(req, res); | |
| } else { | |
| res.writeHead(404); | |
| res.end(); | |
| } | |
| } else { | |
| res.writeHead(200, {'Content-Type': 'text/html'}); | |
| res.write(fs.readFileSync(__dirname + '/index.html')); | |
| res.end(); | |
| } | |
| }).listen(port, ip); | |
| console.log('Running HTTP server at:', ip, ':', port); | |
| function sendSSE(req, res) { | |
| res.writeHead(200, { | |
| 'Content-Type': 'text/event-stream', | |
| 'Cache-Control': 'no-cache', | |
| 'Connection': 'keep-alive' | |
| }); | |
| var id = (new Date()).toLocaleTimeString(); | |
| // Sends a SSE every 5 seconds on a single connection. | |
| setInterval(function() { | |
| constructSSE(res, id, (new Date()).toLocaleTimeString()); | |
| }, 5000); | |
| constructSSE(res, id, (new Date()).toLocaleTimeString()); | |
| } | |
| function constructSSE(res, id, data) { | |
| console.log("Sending:", id, data); | |
| res.write('id: ' + id + '\n'); | |
| res.write("data: " + data + '\n\n'); | |
| } |
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