Wikipedia API Client

Allows you to get wikipedia content through their API. This uses the alpha API, not the deprecated query.php API type.

Wikipedia API reference: http://en.wikipedia.org/w/api.php

Adopted from: http://code.google.com/p/wikipedia-client/

Installation

gem install wikipedia-client

Usage

require 'wikipedia'
page = Wikipedia.find( 'Getting Things Done' )
#=> #<Wikipedia:Page>

page.title
#=> 'Getting Things Done'

page.fullurl
#=> 'http://en.wikipedia.org/wiki/Getting_Things_Done'

page.text
#=> 'Getting Things Done is a time-management method...'

page.content
#=> all the wiki markup appears here...

page.summary
#=> only the wiki summary appears here...

page.categories
#=> [..., "Category:Self-help books", ...]

page.links
#=> [..., "Business", "Cult following", ...]

page.extlinks
# => [..., "http://www.example.com/", ...]

page.images
#=> ["File:Getting Things Done.jpg", ...]

page.image_urls
#=> ["http://upload.wikimedia.org/wikipedia/en/e/e1/Getting_Things_Done.jpg"]

page.image_thumburls
#=> ["https://upload.wikimedia.org/wikipedia/en/thumb/e/e1/Getting_Things_Done.jpg/200px-Getting_Things_Done.jpg"]

# or with custom width argument:
page.image_thumburls(100)
#=> ["https://upload.wikimedia.org/wikipedia/en/thumb/e/e1/Getting_Things_Done.jpg/100px-Getting_Things_Done.jpg"]

page.image_descriptionurls
#=> ["http://en.wikipedia.org/wiki/File:Getting_Things_Done.jpg"]

page.main_image_url
#=> "https://upload.wikimedia.org/wikipedia/en/e/e1/Getting_Things_Done.jpg"

page.coordinates
#=> [48.853, 2.3498, "", "earth"]

page.templates
#=> [..., "Template:About", ...]

page.langlinks
#=> {..., "de"=>"Getting Things Done", "eo"=>"Igi aferojn finitaj",  "zh"=>"尽管去做", ...}

Configuration

Global

This is by default configured like this:

Wikipedia.configure {
  domain 'en.wikipedia.org'
  path   'w/api.php'
}

Local

If you need to query multiple wikis indiviual clients with individual configurations can be used:

config_en = Wikipedia::Configuration.new(domain: 'en.wikipedia.org')
config_de = Wikipedia::Configuration.new(domain: 'de.wikipedia.org')

client_en = Wikipedia::Client.new(config_en)
client_de = Wikipedia::Client.new(config_de)
client_en.find( 'Getting Things Done' )
client_de.find( 'Buch' )

Advanced

See the API spec at http://en.wikipedia.org/w/api.php.

If you need data that is not already present, you can override parameters.

For example, to retrieve only the page info:

page = Wikipedia.find( 'Getting Things Done', :prop => "info" )

page.title
#=> "Getting Things Done"

page.raw_data
#=> {"query"=>{"pages"=>{"959928"=>{"pageid"=>959928, "ns"=>0,
"title"=>"Getting Things Done", "touched"=>"2010-03-10T00:04:09Z",
"lastrevid"=>348481810, "counter"=>0, "length"=>7891}}}}

Additional HTTP headers

Some API features require tweaking HTTP headers. You can add additional headers via configuration.

For example, to retrieve the same page in different language variants:

Wikipedia.configure do
   domain 'zh.wikipedia.org'
   headers({ 'Accept-Language' => 'zh-tw' })
end

Wikipedia.find('牛肉').summary #=> "牛肉是指從牛身上得出的肉，為常見的肉品之一。肌肉部分可以切成牛排、牛肉塊或牛仔骨，也可以與其他的肉混合做成香腸或血腸。"

Wikipedia.configure do
   domain 'zh.wikipedia.org'
   headers({ 'Accept-Language' => 'zh-cn' })
end

Wikipedia.find('牛肉').summary #=> "牛肉是指从牛身上得出的肉，为常见的肉品之一。肌肉部分可以切成牛排、牛肉块或牛仔骨，也可以与其他的肉混合做成香肠或血肠。"

Contributing

Getting the code, and running the tests

git clone git@github.com:kenpratt/wikipedia-client.git
cd wikipedia-client
bundle install
bundle exec rspec

Pushing a new release of the Gem

Edit lib/wikipedia/version.rb, changing VERSION.
Test that the current branch will work as a gem, by testing in an external directory:
Make a test directory.

Add a Gemfile with:

source 'https://rubygems.org'

gem 'wikipedia-client', :path => '/path/to/local/wikipedia-client'

And a test.rb file with:

require 'wikipedia'

page = Wikipedia.find('Ruby')
puts page.title

And then run bundle install && bundle exec ruby test.rb
Build the gem: bundle exec gem build wikipedia-client.gemspec.
Commit the changes: git commit -a -m 'Version bump to 1.4.0' && git tag v1.4.0 && git push && git push --tag
Publish the result to RubyGems: bundle exec gem push wikipedia-client-1.4.0.gem.
Test the released gem in an external directory:
Make a test directory.