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I want to implement a server side application catching incoming http requests with a certain header.After catching the request it extracts information about type of HTTP request (GET,HEAD,PUT,POST etc.), requested url and sends it to another server, collecting the data ( a webservice or a server having a 3rd party tool like statsd).

Application needs to be as lightweight as possible.

On a side note corresponding server where the requests are coming to, will be in a high load, as a result application needs to perform well under such load. I know that this application can be implemented in any language, however I want to try something new.

Is node.js suitable for developing such an application regarding complexity and performance?

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1 Answer 1

up vote 1 down vote accepted

You can do package sniffing in Node.JS with the node_pcap package. It relies on libpcap. Though there is a port of libpcap in Windows, there might be some configuration that needs to be done in order to get it work in Windows.

When a network package is captured you can easily check if it is an http request with a certain header.

If that is too low level for you, you can also use http_trace that specifically traces http requests for you.

Here are some references to get you started:

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node_pcap seems like what i need and easy to implement too. For performance evaluation i need to make some tests. Thank you for answer. –  fga Dec 27 '12 at 6:19

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