Monban 門番

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Monban is designed to be very simple and extensible user authentication. It's goal is to give all the power to the developer instead of forcing them to make Monban work with their system

Why use Monban?

Monban makes authentication simple:

  • Uses warden
  • Provides convenient controller helpers
  • Provides a rails generator for default controllers and views
  • Very customizable

Monban doesn't do the following:

  • Doesn't automatically add routes to your application
  • Doesn't force you to use engine based controllers or views
  • Doesn't require you to make changes to your user model


Monban was designed to work with Rails > 4.0. Add this line to your Gemfile:

gem 'monban'

Then inside of your ApplicationController add the following:

include Monban::ControllerHelpers

You may also generate a scaffold to start with:

rails g monban:scaffold

This will generate a bare bones starting point. If you don't want the full stack you can just generate some controllers with:

rails g monban:controllers


Monban does currently have some out of the box expectations, but you can configure any of these:

  • By default the model should be called User
  • You should have an email and password_digest column on your User
  • Passwords will be run through BCrypt

Controller Additions

Monban provides the following controller methods:

  • sign_in(user)
  • sign_out
  • sign_up(user)
  • authenticate_session(session_params)
  • authenticate(user, password)

These helpers:

  • current_user
  • signed_in?

And this filter:

  • require_login

Usage in Tests

Test mode

Monban provides the follow:


Which will change password encryption to provide plaintext responses instead of using BCrypt. This will allow you to write factories using the password_digest field:

FactoryGirl.define do
  factory :user do
    username 'wombat'
    password_digest 'password'

Spec helpers

A couple of convenience methods are available in your tests.

require 'monban/test/helpers'


RSpec.configure do |config|
  config.include Monban::Test::Helpers, type: :feature
  config.after :each do
feature "A feature spec" do
  scenario "that requires login" do
    user = create(:user)
    # do something
    # do something else

Advanced Functionality

You may perform a look up on a user using multiple fields by doing something like the following:

class SessionsController < ApplicationController
  def create
    user = authenticate_session(session_params, email_or_username: [:email, :username])
    (user) do
      redirect_to(root_path) and return
    render :new


  def session_params
    params.require(:session).permit(:email_or_username, :password)


This will allow the user to enter either their username or email to login


Here are a few of the current limitations of monban:

  • Monban assumes you only have one user model.


  1. Fork it
  2. Create your feature branch (git checkout -b my-new-feature)
  3. Commit your changes (git commit -am 'Add some feature')
  4. Push to the branch (git push origin my-new-feature)
  5. Create new Pull Request