title: How to i get ruby to return json response to be used in rails controller
body: <p>I'm working with an Api, so far so good i am able to send requests and receive response, but i want the ruby code to send the json response and message that can be accessible from my rails controller so that i can get simple_form to render the error or success messages and also handle redirection from the rails controller, i also want to save transaction details from the response in a model, here's my lib code</p>
  
  <pre><code>class SimplePay
    require 'net/https'
    require 'uri'
    require 'json'
  
    def self.pay(api_key, token, amount, amount_currency, status)
      uri = URI.parse('https://checkout.simplepay.ng/v2/payments/card/charge/')
      header = {'Content-Type': 'text/json'}
      data = {
          'token': token,
          'amount': amount,
          'amount_currency': amount_currency
      }
      http = Net::HTTP.new(uri.host, uri.port)
      request = Net::HTTP::Post.new(uri.request_uri, header)
      http.use_ssl = true
      http.verify_mode = OpenSSL::SSL::VERIFY_NONE
      request = Net::HTTP::Post.new(uri.request_uri, header)
      request.basic_auth(api_key, '')
      request.set_form_data(data)
  
      response = http.request(request)
      res = JSON.parse(response.read_body)
      response_code =  res['response_code']
      if response.kind_of? Net::HTTPSuccess
        if response_code.eql? 20000
          puts 'success'
        else
          puts 'Failed'
        end
      elsif status.eql? true
        puts 'Success But Not Charged'
      elsif status.eql? false
        raise error 'Failed To Charge Card'
      elsif response.kind_of? Net::HTTPBadRequest
        raise error 'Failed 400'
      elsif response.kind_of? Net::HTTPError
        raise error 'Failed 404'
      else
        raise error 'Unknown Error'
      end
    end
  end
  </code></pre>
  
  <p>How do i go about achieving this?</p>