An example random data creator

randomDataCreator.rb

#!/bin/env ruby
# encoding: utf-8

require "faker"
require 'random_data'
require 'json'

randomPostcode = Random.uk_post_code
randomAddress = Random.address_line_1 + " " + Random.address_line_2 + " " + randomPostcode

customer_hash = {
            "name" => Faker::Name.name,
            "address" => randomAddress,
            "postcode" => randomPostcode
}

@json = JSON.pretty_generate(customer_hash)
puts @json

begin
  File.delete("output.json")
  file = File.open("output.json", "w")
  file.write(@json)
rescue IOError => e
  #some error occur, dir not writable etc.
ensure
  file.close unless file == nil
end