Copies a binary remote file (like a jpeg image) to a temporary local file for use with node-canvas, etc

getTemporaryFilePathFromURL.coffee

fs = require 'fs'
http = require 'http'
temp = require 'temp'	# npm install

getTemporaryFilePathFromURL = ( url, callback ) ->
	temp.open 'temp-image', (err, info) ->
		stream = fs.createWriteStream info.path
		http.get url, ( res ) ->
			res.on 'data', (chunk) ->
				console.log 'got chunk of size ' + chunk.length
				stream.write chunk

			res.on 'end', () ->
				console.log 'done' 
				stream.end()
				fs.close info.fd, (err) ->
					callback info.path

module.exports =
	getTemporaryFilePathFromURL : getTemporaryFilePathFromURL