Open Data Hacking
George Lee
@keokilee
github.com/keokilee
Who are you?
- Your name
- Are you a developer?
- What brought you to this session?
- What bothers you about living in Hawaii?
"Open Data"
(What does this even mean?)
Open Data
Open data is data that can be freely used, re-used and redistributed by anyone - subject only, at most, to the requirement to attribute and sharealike.
http://opendatahandbook.org/guide/en/what-is-open-data/
We gather a lot of data
Open Government Data
Government gathers a ton of data. Some of it is provided to the public by law.
But why do we care?
The Value of Open Data
- Transparency
- Make better decisions
- Improved efficiency/effectiveness of government
- And more ...
This feels like a huge burden
Open Data is a Learning Opportunity
Learning with open data
- Learn to code
- Try out new technologies
- "Intentional practice"
- The barrier to entry is low
- Build your open source portfolio
- And more ...
But, someone probably did this already
How do I get started?
Data Sources
- data.honolulu.gov
- data.hawaii.gov
- data.hawaii.edu
Crime Incidents
Try Fetching
Go to the documentation and sign up for a token
https://dev.socrata.com/foundry/data.honolulu.gov/9kc2-xdwh
Fill out the required fields
When you are done, execute:
curl -H "X-App-Token: <Your token>" https://data.honolulu.gov/resource/a96q-gyhq.json
ArcGIS
Available Services
http://services.arcgis.com/tNJpAOha4mODLkXz/ArcGIS/rest/services
ArcGIS Layers
Let's look at the neighborhood board subdistricts.
You can view this on a map, but we're interested in querying the layer.
Basic Query
Click on "Query" at the bottom of the page.
Some magic settings:
- Set "Where" to "1=1"
- Set "Out Fields" to "*"
- Set "Return Geometry" to "False" (Important!)
- Set "Format" to "JSON"
Complex Query
Find a lat/lon on Google Maps
Blaisdell is 21.301693, -157.849541
Settings:
- Set "Geometry" to "<lon>,<lat>"
- Set "Geometry Type" to "Point"
- Set "Input Spatial Reference" to "4326"
- Set "Spatial Relationship" to "Intersects"
- Other fields remain the same
Some Projects
HI Park
City Camp Hackathon,
January 2012
Find parking spots near UH and see when they're available.
Django
jQuery Mobile
Redeem HI-5
http://redeemhi5.com
September, 2012
See all recycling centers on the island of Oahu and when they are open.
Node.js (0.8)
jQuery Mobile
Backbone.js
Coffeescript
HI Traffic
Dev League Cohort 3,
February, 2015
API for fetching traffic incidents.
Node.js
Cheerio (screen scraping)
Ionic / Angular.js
Tutorial in React Native
Park Carma
Reboot the Commute,
May 2015
App for finding parking spots and how long they're available
Ionic / Angular.js
Firebase
Trash Pickup
Started February 2016
App for seeing when your next trash pickup is
React Native
ArcGIS
The Challenge
- Find a public data set
- Make a simple app/website to display the data (or sketch it out)
- Come to the next Code for Hawaii meetup and talk about it (6:30 PM on March 9th at The Box Jelly)
- More details: http://www.meetup.com/Code-for-Hawaii/events/229336057/
Slides or something
By George Lee
Slides or something
Open data hacking or something.
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