first version

lib/openexchangerates.rb

@@ -0,0 +1,31 @@
+require 'open-uri'
+
+class OpenExchange
+  @@url = 'http://openexchangerates.org/api/'
+
+  def initialize(api_key)
+    @api_key = api_key
+    @user_agent = "Ruby/#{RUBY_VERSION}"
+  end
+
+  def set_userAgent(user_agent)
+    @user_agent = user_agent
+  end
+
+  def get_latest()
+    json = open("#{@@url}latest.json?app_id=#{@api_key}",
+      'User-Agent' => @user_agent).read
+    return json
+  end
+
+  def get_old(date) # YYYY-MM-DD
+    json = open("#{@@url}historical/#{date}.json?app_id=#{@api_key}",
+      'User-Agent' => @user_agent).read
+  end
+
+  def get_currencies()
+    json = open("#{@@url}currencies.json?app_id=#{@api_key}",
+      'User-Agent' => @user_agent).read
+    return json
+  end
+end