Use Hash value on url with Nokogiri or RestClient - ruby-on-rails

Question

I have a url like :
http://172.0.0.1:22230/test.action?data={"foo":"bar","joe":"doe"}&sign=x6das
In my browser I can get data from that url, but if I'm use nokogiri
Nokogiri::HTML(open('http://172.0.0.1:22230/test.action?data={"foo":"bar","joe":"doe"}&sign=x6das'))
I get
URI::InvalidURIError: bad URI(is not URI?): http://172.0.0.1:22230/test.action?data={"foo":"bar","joe":"doe"}&sign=x6das
from /home/worka/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/uri/common.rb:176:in `split'
Also with RestClient
RestClient.get 'http://172.0.0.1:22230/test.action?data={"foo":"bar","joe":"doe"}&sign=x6das'
I got same an error.

Answer 1

Encode your url first then use it.
url = 'http://172.0.0:22230/test.action?data={"foo":"bar","joe":"doe"}&sign=x6das'
encoded_url = CGI::escape(url)
Nokogiri::HTML(open(encoded_url))

Answer 2

When dealing with URIs, it's a good idea to use the tools designed for them such as URI, which comes with Ruby.
The URI can't be
http://172.0.0.1:22230/test.action?data={"foo":"bar","joe":"doe"}&sign=x6das
because the data component is invalid. If you are adding data then I'd start with:
require 'uri'
uri = URI.parse('http://172.0.0.1:22230/test.action?sign=x6das')
query = URI.decode_www_form(uri.query).to_h # => {"sign"=>"x6das"}
data = {"foo" => "bar","joe" => "doe"}
uri.query = URI.encode_www_form(query.merge(data)) # => "sign=x6das&foo=bar&joe=doe"
uri.to_s # => "http://172.0.0.1:22230/test.action?sign=x6das&foo=bar&joe=doe"
Your initial example using {"foo":"bar","joe":"doe"} is JSON serialized data, which usually isn't passed in a URL like that. If you need to create JSON, start with the initial hash:
require 'json'
data = {"foo" => "bar","joe" => "doe"}
data.to_json # => "{\"foo\":\"bar\",\"joe\":\"doe\"}"
to_json serializes the hash into a string, which could then be encoded into the URI:
data = {"foo" => "bar","joe" => "doe"}
uri = URI.parse('http://172.0.0.1:22230/test.action?sign=x6das')
query = URI.decode_www_form(uri.query).to_h # => {"sign"=>"x6das"}
uri.query = URI.encode_www_form(query.merge('data' => data.to_json)) # => "sign=x6das&data=%7B%22foo%22%3A%22bar%22%2C%22joe%22%3A%22doe%22%7D"
But again, sending encoded JSON as a query parameter in the URI is not very common or standard since data payload is smaller without the JSON encoding.

Answer 3

Ok I got solved my problem
url = http://172.0.0.1:22230/test.action?data={"foo":"bar","joe":"doe"}&sign=x6das
RestClient.get(URI.encode(url.strip))