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hilotter/Gemfile

Created September 2, 2014 00:26
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twitter screen_nameからユーザidを取得するサンプル
Raw
app.rb
require 'sinatra'
require 'erb'
require 'open-uri'
require 'nokogiri'
require 'pry'
get '/' do
@screen_name = "xxxx"
erb :index
end
post '/' do
uid = @params[:uid]
redirect back if uid.nil? || uid.empty?
begin
doc = Nokogiri::HTML(open("https://twitter.com/intent/user?screen_name=#{uid}"))
native_url = doc.css('meta[name="native-url"]').first.attribute('content').value
res = native_url.match(%r{^twitter://user\?id=(\d+)$})
@screen_name = res[1]
rescue OpenURI::HTTPError => e
if e.message == '404 Not Found'
@screen_name = "404 Not Found"
else
raise e
end
end
erb :index
end
__END__
@@index
<html>
<body>
<p>twitter screen_name converter</p>
<form action="/" method="post">
<input type="text" maxlength="30" name="uid" placeholder="input screen_name">
<input type="submit">
</form>
uid is <%= @screen_name %>
</body>
</html>
Raw
Gemfile
source 'https://rubygems.org'
gem 'sinatra'
gem 'nokogiri'
gem 'pry'
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