Question

138

Is it possible to set up a socket.io client running (server-side) on a node.js server?

rated 0 times [ 145] [ 7] / answers: 1 / hits: 17252 / 12 Years ago, tue, march 13, 2012, 12:00:00

I'd like to enable socket-based p2p communications between two or more different node.js application servers. I'm using socket.io to handle all such communication between a given server and the web application it serves - but what I'm looking for is a way to communicate server-to-server.

I had initially assumed it would be as easy as something like this:

var io = require(socket.io);

var socket = io.connect(my remote endpoint);

However, as it turns out the server-side socket.io implementation doesn't offer a connect method, only a listen method.

Why is this? Why can't I treat a node application server as a client to a socket.io server running elsewhere? Is there any way that I can achieve this functionality?

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irvingcarloe

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2 Years ago

answered 12 Years ago beatriceisabelad · Accepted Answer

OK, so thanks to @pimvdb in the comments above I've got a workable solution.

Basically, the socket.io library that npm installs has a dependency on another module, called socket.io-client. In a standard socket.io installation this will be installed in node_modules/socket.io/node_modules/socket.io-client

However, it's also possible to say npm install socket.io-client and install it as its own first-class citizen library.

Then your usage looks like this:

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

var socket = client.connect(http://myendpoint.com:3000/whatever);

socket.emit(test, foo);

And everything works.

So, thanks man!