Created
November 8, 2014 14:51
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Node.js TCP Socket - if either of them breaks, they'll keep trying to reconnect
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var net = require('net'); | |
// | |
// Client | |
// | |
function openSocket() { | |
var socket = net.connect(3e3); | |
socket.setKeepAlive(true); | |
socket.on('connect', onConnect.bind({}, socket)); | |
socket.on('error', onError.bind({}, socket)); | |
} | |
var interval; | |
function onConnect(socket) { | |
console.log('Socket is open!'); | |
interval = setInterval(function() { | |
var msg = parseInt(+new Date) + ''; | |
socket.write(msg, function() { | |
console.log('Sent:', msg); | |
}); | |
}, 500); | |
} | |
function onError(socket) { | |
console.log('Socket error!'); | |
// Kill socket | |
clearInterval(interval); | |
socket.destroy(); | |
socket.unref(); | |
// Re-open socket | |
setTimeout(openSocket, 1e3); | |
} | |
openSocket(); |
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var net = require('net'); | |
// | |
// Server | |
// | |
var server = new net.Server(); | |
server.on('connection', function(socket) { | |
console.log('Socket is open!'); | |
socket.setEncoding('utf8'); | |
socket.on('data', function(data) { | |
console.log('Received:', data); | |
}); | |
socket.on('error', function() { | |
console.log('Socket error!'); | |
}); | |
}); | |
server.listen(3e3, function() { | |
console.log('Server is listening!'); | |
}); |
Printing the error is a simple fix. in the 'error' listener; change the console log to 'console.log(error);' this will output the error instead of the verbiage he has written.
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This doesn't work for me.
Pulling the network cable out and back in causes: "ECONNRESET".
And causes [ERR_STREAM_DESTROYED]: Cannot call write after a stream was destroyed (for each time you try to write).
And then for each time you try to write; starts a new connection; but for some reason doesn't continue gracefully.
Also; it doesn't even print the actual error.