getting started with developing nodejs
Post on 01-Sep-2014
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node.jsyet another talk on
getting started
@philhawksworth
what we’ll look atwhaddizit?
installation optionshello world
modules & frameworksdeploying & hostingcomet and beyond
assumptions
web development experiencejavascript knowledge
unix, linux, osxnot a nodejs ninja
whaddizit?
Evented I/O forV8 Javascript
c++v8 javascript engine
server-side javascriptsingle event loop
non-blocking
evented i-what now?
strong javascriptjQuery patterns
useful knowledge
jQuery patternsdangerous knowledge
considerationshow mature is it?
v0.0.1: early 2009, currently v.0.4.8
who uses it?everyone is playing.
considerationshow mature is it?
v0.0.1: early 2009, currently v.0.4.8
who uses it?everyone is playing.
should I be scared of it?no. but be cautious.
ball-ache:stability
rate of change
installation options
build from sourcepackage
ndistron
from sourceclone source from github
install dependanciesxcode tools
configure, make, make install
package
ball-ache:stability
rate of change
many versionsmany versionsmany versionsmany versionsmany versionsndistro & n
ndistro node distribution toolkit
enables many versions of node
local versions for each project
n
install as a module
ball-acheversion stabilitymodule stability
installing modules
npmnode package manager
$ npm install <package>
$ npm install n
$ npm ls
!"# express@2.2.2 $ !"# connect@1.3.0 $ $ !"" mime@1.2.1 $ $ %"" qs@0.1.0 $ !"" mime@1.2.1 $ %"" qs@0.1.0 !"" n@0.4.1 %"" underscore@1.1.6
!"# express@2.2.2 $ !"# connect@1.3.0 $ $ !"" mime@1.2.1 $ $ %"" qs@0.1.0 $ !"" mime@1.2.1 $ %"" qs@0.1.0 !"" n@0.4.1 %"" underscore@1.1.6
$ npm update n
$ npm install n
$ npm update npm
n
while ndistro is for virtual
environments
while ndistro is for local
environments
n gives system wide
node versioning
$ n 0.2.6$ n v0.3.3
downloadconfigure
make install
$ n ls
$ n
0.2.3 0.2.6 --debug 0.3.4 0.3.5ο 0.4.8
$ n use 0.4.8
what we’ll look atwhaddizit?
installation optionshello world
modules & frameworksdeploying & hostingcomet and beyond
hello world
hello world
app.js
$ node app.js
$ ./bin/node app.js
$ n use 0.4.8 app.js
frameworksget a little help
uri routingcontent negotiation
templatingenvironment configuration
expressthe canonical web
development frameworkhttp://expressjs.com
templatingmany ways to render
your response
$ express --template --css --session
$ n use 0.4.8 app.js
deployingwhere do I put this thing?
self-managedamazon, linode, slicehost
managedheroku, no.de
automated, git-based deployment
install via npm
manage dependancies via npm
limited versions of nodejs
duostack
hello world
server.js
$ git init$ git add$ git commit -m ‘1st commit’
$ duostack create nodedemo$ git push duostack master
Delta compression using up to 2 threads.Compressing objects: 100% (2/2), done.Writing objects: 100% (3/3), 416 bytes, done.Total 3 (delta 0), reused 0 (delta 0)
==== Duostack deploy received for nodedemo==== Compiling app... done Compressed size is 4.0KB==== Launching first instances.... done
==== App successfully deployed to==== http://nodedemo.duostack.net
self-managedamazon, linode, slicehost
deployingget it there
git
configure itinstall dependencies
get it up, and keep it upupstart
$ git clone project.git$ cd project$ ndistro
ndistro is really just the shell
replicates your environment
keeping it up
$ /etc/init.d/
what we’ll look atwhaddizit?
installation optionshello world
modules & frameworksdeploying & hostingcomet and beyond
easy comet requests
websockets
cometlong-lived http requests
javascript on the clientasks, and listens
asks again, or takes action
websocketsmore efficient low latency comms
supported in modern browsers
Graceful degradation
WebSocketAdobe Flash Socket
Ajax long pollingAjax multipart streaming
Forever IframeJSONP Polling
but...node is not just for realtime
staying in the loop
and finding out more
github wikigithub.com/joyent/node/wiki
ircirc.freenode.net
#node.js
github wiki
@ryah@tjholowaychuk
@isaacs@sh1mmer
ta!
hawksworx.com@philhawksworth
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