Rails Display Current Facebook Share Count - ruby-on-rails

Question

so I'm trying to display the current facebook share count in a Rails application. I keep getting the "can't convert string to text" error when trying to grab the current URL in my Rails app.
The code works if I put in something like facebook_shares("http://www.google.com")
The code does not work if I use facebook_shares("#{request.protocol}#{request.host_with_port}#{request.fullpath}")
Not sure how to fix this problem
Here is my current code...
helper.rb:
def facebook_shares(url)
data = Net::HTTP.get(URI.parse("http://graph.facebook.com/?ids=#{URI.escape(url)}"))
data = JSON.parse(data)
data[url]['shares']
end
view.html.erb:
<% current_url = "#{request.protocol}#{request.host_with_port}#{request.fullpath}" %>
<%= facebook_shares(current_url) %>
When I run this I get a "can't convert string into integer" error. It works if I do the code below:
<% current_url = "http://www.google.com" %>
<%= facebook_shares(current_url) %>
Super lost...

Answer 1

data[url]['shares'] part is suspicious. Eithere data[url] gives you Array and when you are trying ['shares'] on that Array you are getting the error,which is obvious. Or data itself is Array of something... Thus data[url] throws the error. So inspect first how data is looks like. This error is coming as Array#[] don't allow string inside []. See the below demo code:
arr = [1,2]
arr['foo']
# ~> -:2:in `[]': no implicit conversion of String into Integer (TypeError)
# ~> from -:2:in `<main>'

Answer 2

I figured it out. This was a horrible oversight by myself :p.
I'm in development running on a local server, so I'm pulling localhost:3000/something.
Pushing this and running the function in production works fine. Sorry everyone, but thanks for the help!