How can node.js help me today?
Michael K. Snead
Let's get on the same page...
JavaScript is the future
- Modern web applications demand rich client-side functionality
- JavaScript is the lingua franca of the web
- As craftsmen of our trade, we need to hold JavaScript development to the same standards as our (other) server side code
node.js is awesome
node is v8
node is async
node.js is awesome
node is more than just a web server
Twitter Bower (http://bower.io)
Grunt (http://gruntjs.com)
Gulp (http://gulpjs.com)
node.js is awesome
node.js is in the enterprise
Who are you?
- I can use node.js
- We can use node.js in development
- We can use node.js in continuous integration
- We can use node.js in production
I can use node.js
I can use node.js for...
- Unit testing JavaScript code
- Linting JavaScript code
- Local CI
- Transpiling
(Sassy CSS, Traceur, CoffeeScript, etc.)
- Functional Testing
(ie: Selenium)
- Gulp, grunt, etc. through VS
How to use Selenium + node
- Download the Chrome WebDriver
http://chromedriver.storage.googleapis.com/index.html - Install selenium-webdriver npm package
- Write tests!
Selenium and node go together great! It's easy to wrap calling jQuery through Selenium to access elements and feels natural in node!
Unit Testing JavaScript is easy
...and it's not just about code you wrote
Linting JavaScript is easy too
...it's like compile-time checking for JavaScript
https://github.com/jscs-dev/node-jscs
http://www.jshint.com/
Near-Instant Feedback
...because you shouldn't have to wait.
https://www.npmjs.org/package/gulp-watch
https://www.npmjs.org/package/gulp-jshint
https://www.npmjs.org/package/gulp-notify-growl
Watch files, run tasks.
Let's take it up a notch!
Sassy CSS
http://sass-lang.com/
Traceur Compiler
https://github.com/google/traceur-compiler
We can use node.js
In Development
We can use node.js for...
- Bundling and Minification
- Manage client dependencies
- Aid in writing large scale JavaScript apps
(RequireJS, WebPack, Browserify, etc.) - Node is fast at building things
(Mocking, rapid prototyping) - Load/Performance testing
(ie: with WebSockets, zombie + async) - Sassy CSS, ES6, etc.
zombie + async = load test
- Node is fast at handling many requests
- zombie is fast at parsing DOM without overhead
- async, node-promise, bluebird make it easy to manage deferred code
https://github.com/calekennedy/zombie-swarm
We can use node.js
In Continuous Integration
We can use node.js for...
- TFS and can't access build server?
You can use Chutzpah/PhantomJS - MSTest can invoke tests too
- Bamboo and others can just call gulp
TFS Unit Testing Recipe
https://www.nuget.org/packages/ExecConsoleProgram/
No Installation Needed! Tested on TFS 2012
https://www.nuget.org/packages/Chutzpah
http://qunitjs.com/
http://aspnetperformance.com/post/Unit-testing-JavaScript-as-part-of-TFS-Build.aspx
We can use node.js
In Production ...to help with client code
We can use node.js for...
- building an SPA
- React.js/jsx, Angular, etc
We can use node.js
In Production ...alongside legacy apps
We can use node.js for...
- Websockets
- JSON-based APIs
(Wrap XML, mobile, REST) - Side-by-side in IIS with IISnode
Can run as part of the same app - Leverage existing .NET code through edge.js
- Scale horizontally to handle massive load
We can use node.js
...but we have a restrictive corporate policy
To get value from node, you want...
- node.js
- git, bower and npm
- some packages use Ruby, Python, C/C++
..but we only use NTLM?
- Use cntlm
- Mirror npm internally
- XCopy packages you need
- npm is open source
http://cntlm.sourceforge.net/
https://www.npmjs.org/package/npm-mirror
https://www.npmjs.org/package/npm-lazy-mirror
http://www.clock.co.uk/blog/how-to-create-a-private-npmjs-repository
Questions?
