I am lazy. Made a script to build express routes for the Fakergem library.

fakergem-build-routes.rb

TEMPLATE = <<-EOF
const Faker = require('fakergem');
const { Router } = require('express');
const router = new Router();

router.get('/{route_name}', (req, res) => {
  res.json({
    {properties}
  });
});

module.exports = router;
EOF

Dir.glob('./node_modules/fakergem/doc/*.md').each do |doc|
  route_name = File.basename(doc, '.md')
  properties = File.open(doc, 'r', &:read).scan(/^Faker\.(\w+)\.(\w+)/).map {|match|
    "#{match[1]}: Faker.#{match[0]}.#{match[1]}()"
  }.uniq
  File.open("./routes/#{route_name}.js", 'w') do |f|
    f.puts TEMPLATE
      .gsub(/\{route_name\}/, route_name)
      .gsub(/\{properties\}/, properties.join(",\n    "));
  end
  puts "app.use(require('./routes/#{route_name}'));"
end