Send Message via net/http for Twilio Messaging Service

twilio_messaging_service.rb

require 'uri'
require 'net/http'

class TwilioMessage

  def initialize(options = {})
    @account_sid          = ENV.fetch('TWILIO_ACCOUNT_SID')
    @account_token        = ENV.fetch('TWILIO_AUTH_TOKEN')
    @message_service_sid  = ENV.fetch('TWILIO_MSID')

    @body = options[:body]
    @to = options[:to]
  end

  def send
    req = Net::HTTP::Post.new(uri)
    req.basic_auth @account_sid, @account_token
    req.content_type = 'application/x-www-form-urlencoded'

    req.set_form_data(
      'Body' => @body,
      'MessagingServiceSid' => @message_service_sid,
      'To' => @to
    )

    req_options = {
      use_ssl: uri.scheme == 'https'
    }
    response = Net::HTTP.start(uri.hostname, uri.port, req_options) do |http|
      http.request(req)
    end

    case response
    when Net::HTTPSuccess
      puts JSON.parse response.body
    when Net::HTTPUnauthorized
      puts "#{response.message}: username and password set and correct?"
    when Net::HTTPServerError
      puts "#{response.message}: try again later?"
    else
      puts response.message
    end
  end

  private

  def uri
    URI('https://api.twilio.com/2010-04-01/Accounts/' + @account_sid + '/Messages.json')
  end
end