Added sinatra example

examples/sinatra.rb

@@ -0,0 +1,82 @@
+require "rubygems"
+require "haml"
+require "sinatra"
+require "linkedin"
+
+enable :sessions
+
+helpers do
+  def login?
+    if session[:atoken].nil?
+      return false
+    else
+      return true
+    end
+  end
+
+  def profile
+    unless session[:atoken].nil?
+      client = LinkedIn::Client.new(settings.api, settings.secret)
+      client.authorize_from_access(session[:atoken], session[:asecret])
+      return client.profile
+    end
+  end
+
+  def connections
+    unless session[:atoken].nil?
+      client = LinkedIn::Client.new(settings.api, settings.secret)
+      client.authorize_from_access(session[:atoken], session[:asecret])
+      return client.connections
+    end
+  end
+
+end
+
+configure do
+  # get your api keys at https://www.linkedin.com/secure/developer
+  set :api, "your_api_key"
+  set :secret, "your_secret"
+end
+
+get "/" do
+  haml :index
+end
+
+get "/auth" do
+  client = LinkedIn::Client.new(settings.api, settings.secret)
+  request_token = client.request_token(:oauth_callback => "http://#{request.host}:#{request.port}/auth/callback")
+  session[:rtoken] = request_token.token
+  session[:rsecret] = request_token.secret
+
+  redirect client.request_token.authorize_url
+end
+
+get "/auth/logout" do
+   session[:atoken] = nil
+   redirect "/"
+end
+
+get "/auth/callback" do
+  client = LinkedIn::Client.new(settings.api, settings.secret)
+  if session[:atoken].nil?
+    pin = params[:oauth_verifier]
+    atoken, asecret = client.authorize_from_request(session[:rtoken], session[:rsecret], pin)
+    session[:atoken] = atoken
+    session[:asecret] = asecret    
+  end
+  redirect "/"
+end
+
+
+__END__
+@@index
+-if login?
+  %p Welcome #{profile.first_name}!
+  %a{:href => "/auth/logout"} Logout
+  %p= profile.headline
+  %br
+  %div= "You have #{connections.total} connections!"
+  -connections.all.each do |c|
+    %div= "#{c.first_name} #{c.last_name} - #{c.headline}"
+-else
+  %a{:href => "/auth"} Login using LinkedIn