Parametrized get request in Ruby?

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How do I make an HTTP GET request with parameters in Ruby?

It's easy to do when you're POSTing:

  require 'net/http'
  require 'uri'

  HTTP.post_form URI.parse('http://www.example.com/search.cgi'),
                 { "q" => "ruby", "max" => "50" }

But I see no way of passing GET parameters as a hash using 'net/http'.

7 Answers

Since version 1.9.2 (I think) you can actually pass the parameters as a hash to the URI::encode_www_form method like this:

require 'uri'

uri = URI.parse('http://www.example.com/search.cgi')
params = { :q => "ruby", :max => "50" }

# Add params to URI
uri.query = URI.encode_www_form( params )

and then fetch the result, depending on your preference

require 'open-uri'

puts uri.open.read

or

require 'net/http'

puts Net::HTTP.get(uri)

Use the following method:

require 'net/http'
require 'cgi'

def http_get(domain,path,params)
    return Net::HTTP.get(domain, "#{path}?".concat(params.collect { |k,v| "#{k}=#{CGI::escape(v.to_s)}" }.join('&'))) if not params.nil?
    return Net::HTTP.get(domain, path)
end

params = {:q => "ruby", :max => 50}
print http_get("www.example.com", "/search.cgi", params)
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