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Custom Promotion Code Generator

Customized promotion code generator that maps a name to a specific promotion code

Built with native Ruby code (no external gems)

Demo

Run

ruby main.rb

File Structure

  • main.rb
    • Main script
  • helpers.rb
    • main.rb's helper functions:
      • add()
      • activate()
      • get_code()
  • utils.rb
    • Smaller repeated functions such as get_name() and print_seperator()
  • data.json
    • Where promotion code information gets stored
    • Changes to it not tracked by git for your safety
      • Done through running git update-index --skip-worktree <file-name>

Promotion Code Generation Algorithm

def create_prm_code(name)
  chars = ('!'..'~').to_a # 92 uniq chars
  chars[1] = 'A' ; chars[59] = 'B' # Removing chars that may cause form failure ("\"" and "\\")

  code = [*chars, *chars].sample(12).join('')
  code = name.split(' ')[0] + name.split(' ')[1][0] + '-' + code

  return code
end

The more you increase the sample size (i.e. sample(n)), the harder it would be to crack your promotion code

chars has 92 unique characters and includes upper-case/lower-case letters, numbers, and some special characters

Through testing on security.org, I found that it typically takes 10k+ years to crack these codes. But this is not a guarantee. You may want to test it yourself as well

JSON Data Structure

"<FirstName LastName>": {
  "code": "String: Generated code",
  "activated": "Boolean"
}

Example:

"John Smith": {
  "code": "JohnS-%E>aoLJ%b&qC",
  "activated": true
}

License

MIT