Wrap request for zipkin tracing

gistfile1.txt

22 start { uri: 'http://false.cz' }
33 start { uri: 'http://false.cz/notfound' }
22 end 200 { date: 'Wed, 07 May 2014 09:09:40 GMT',
  server: 'Apache/2.4.7 (Debian) SVN/1.8.5 mod_fcgid/2.3.9 mod_jk/1.2.37 PHP/5.5.8-2 OpenSSL/1.0.1g mod_perl/2.0.8 Perl/v5.18.2',
  'x-powered-by': 'PHP/5.5.8-2',
  vary: 'Accept-Encoding',
  'content-length': '869',
  'keep-alive': 'timeout=5, max=100',
  connection: 'Keep-Alive',
  'content-type': 'text/html' }
done 22
33 end 404 { date: 'Wed, 07 May 2014 09:09:40 GMT',
  server: 'Apache/2.4.7 (Debian) SVN/1.8.5 mod_fcgid/2.3.9 mod_jk/1.2.37 PHP/5.5.8-2 OpenSSL/1.0.1g mod_perl/2.0.8 Perl/v5.18.2',
  'content-length': '206',
  'keep-alive': 'timeout=5, max=100',
  connection: 'Keep-Alive',
  'content-type': 'text/html; charset=iso-8859-1' }
done 33

request-tracing.coffee

request = require 'request'
rr = (traceId) ->
	o = request.defaults {}, (opts, callback) ->
		console.log traceId, "start", opts
		request.call request, opts, (err, res, body) ->
			console.log traceId, "end", res.statusCode, res.headers
			callback err, res, body

	o

rr('22').get 'http://false.cz', (err, r, body) ->
	console.log 'done 22'


rr('33').get 'http://false.cz/notfound', (err, r, body) ->
	console.log 'done 33'