The document outlines practical applications of Node.js for building web and CMS applications using JavaScript. It covers various projects such as 'Bike-Me-Now' for bike sharing, 'Salsadelphia' for salsa events, and a web crawler called 'Orbweaver', along with tools like 'express' for server management and 'browserify' for using Node.js in the browser. Furthermore, it highlights the importance of asynchronous programming and middleware, while providing links to source code and additional resources.

1. Node.js 201
building real web and CMS applications
in pure JavaScript
Tom Boutell @boutell punkave.com

2. Hello World?
● Goodbye
● Well… how about a simple real app?
10 PRINT “HELLO WORLD”
20 GOTO 10
30 REM WHO CARES

3. bike-me-now
a simple mobile web app for Philly’s rideindego bike sharing system

4. bike-me-now.boutell.com
● built with Nick Weber at Code For Philly
● basic express server with a route
● also static server
● request module for talking to APIs
● lodash filtering

5. web browser
sends requests
full pages, ajax
node process
serves requests
“node is the webserver” (*)

6. “Node barely does anything”
node event loop
send things
receive things
something new happens...
your callbacks
do as little as possible
set up more callbacks

7. node in production (at some scale)
web browser
sends requests
full pages, ajax
node process
does dynamic things
nginx
(or apache, or…)
node process
does dynamic things
static files
dynamic
filesystem
static files
load balancing

8. salsadelphia.com
a directory of upcoming salsa nights
source code:
https://github.com/boutell/salsadelphia

9. salsadelphia.com
● for philly’s salsa dance community
● facebook authentication with passport
● middleware
● mongodb
● more lodash filtering

10. livin’ the async life
● the “async” npm module
● series, each, eachSeries, eachLimit
● sublimetext snippets
● alternatives: promises, async functions

11. creating command line tools
● prettiest: persistence and locking
● mechanic: manage nginx with node
○ higher level tools = good
○ sometimes it’s OK to be synchronous

12. orbweaver holodeck

13. orbweaver (npm module)
● a simple but robust web crawler
● parallel accesses
● simulating users
● async.queue
● holodeck (also an npm module)

14. express-cache-on-demand
● mind-bending middleware
● shortest possible cache lifetime
● use in website projects
● in npm

15. kickshirts
● crawls kickstarter
● cheerio: lightweight jQuery for the server
● extracting data with familiar techniques
● no longer running, but open source
● https://github.com/punkave/kickshirts

16. apostrophenow.org
● apostrophe: an open source node CMS
● the sandbox project
● working with schemas
● adding new content types
● areas, singletons and templates

17. stagecoach
● simple deployment system
● multicore support
● github.com/punkave/stagecoach

18. uploadfs (in npm)
● uploaded files have to go somewhere
● filesystem back end
● Amazon S3 back end
● transparent in Apostrophe

19. browserify: node(ish) in the browser
● async-merge-sort module
○ people as comparison functions
● “guided search” example
● limitations of browserify

20. Thanks!
http://punkave.com/
http://justjs.com/
http://apostrophenow.org/
@boutell