gistfile1.rb

   login = 'mail...'
   password = 'pass...'

   require "net/http"
    require "net/https"

   uri = URI.parse("https://eventioz.com/session.json")

   http = Net::HTTP.new(uri.host, uri.port)
   http.use_ssl = true
   http.verify_mode = OpenSSL::SSL::VERIFY_PEER

   request = Net::HTTP::Post.new(uri.request_uri)

   request.set_form_data({
     "login" => login,
     "password" => password,
   })

   response = http.request(request)
   # no llego nunca acá rompe en la autentificación.
   puts response