Got a massive blob of JSON? Got your rails console or irb open? Past in this method, and get a summary of the keys in the JSON!

json_keys.rb

# usage: json_keys(json_data, mode: 'summary')

def json_keys(data, mode: 'summary', depth: 0)
  indent = '  ' * depth  # Indentation based on the nesting level

  case data
  when Array
    json_keys(data.first, mode: mode, depth: depth + 1) if data.any?
  when Hash
    data.each do |key, value|
      puts "#{indent}#{key}" if mode == 'summary'
      json_keys(value, mode: mode, depth: depth + 1)
    end
  end
end