<%= request.request_uri %> / <%= request.path%>
- display current url without base url
eg: /goldberg/auth/login
<%= request.referer %>
- display previous url with base url
eg: http://www.yoursite.com/goldberg/auth/login
<%= request.env['HTTP_HOST']%>
- display base url
eg: www.yoursite.com
<%= request.env['SERVER_PROTOCOL']%>
- display protocol
eg: HTTP/1.1
<%= request.url%>
- full url
eg: http://www.yoursite.com/goldberg/auth/login
<%= request.query_parameters.size %>
- display how many parameters found in current url
url eg: www.yoursite.com/index.html?key=3&d=4
answer: 2 => (2 parameters)
<%= request.path_parameters['controller'] %>
- display controller name from current url
eg: goldberg/auth
<%= request.path_parameters['action'] %>
- display action name from current url
eg: login
<%= request.inspect%>
- It will tell you everything thats inside request.(Long request)
