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require 'net/http'
require 'net/https'

url = URI.parse('https://example.com/')

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true if url.scheme == 'https'

request = Net::HTTP::Post.new(url.path)
request.set_form_data({ 'credit_card_number' => '1234123412341234' })
puts http.request(request).body