app_-_app.rb

class Issue987 < Padrino::Application
  register Padrino::Rendering
  register Padrino::Mailer
  register Padrino::Helpers
  use Rack::Protection::EscapedParams

  enable :sessions

  get :index do
    render :index
  end

  class User
    attr_accessor :name
  end

  post :user do
    @user = User.new
    @user.name = params[:name]
    render :user
  end
end

config_-_apps.rb

##
# This file mounts each app in the Padrino project to a specified sub-uri.
# You can mount additional applications using any of these commands below:
#
#   Padrino.mount('blog').to('/blog')
#   Padrino.mount('blog', :app_class => 'BlogApp').to('/blog')
#   Padrino.mount('blog', :app_file =>  'path/to/blog/app.rb').to('/blog')
#
# You can also map apps to a specified host:
#
#   Padrino.mount('Admin').host('admin.example.org')
#   Padrino.mount('WebSite').host(/.*\.?example.org/)
#   Padrino.mount('Foo').to('/foo').host('bar.example.org')
#
# Note 1: Mounted apps (by default) should be placed into the project root at '/app_name'.
# Note 2: If you use the host matching remember to respect the order of the rules.
#
# By default, this file mounts the primary app which was generated with this project.
# However, the mounted app can be modified as needed:
#
#   Padrino.mount('AppName', :app_file => 'path/to/file', :app_class => 'BlogApp').to('/')
#

##
# Setup global project settings for your apps. These settings are inherited by every subapp. You can
# override these settings in the subapps as needed.
#
Padrino.configure_apps do
  # enable :sessions
  set :session_secret, 'dee403594c3b312a2ccdcd4a5e763f494f72143a7c3299febf2a8e878d958409'
end

# Mounts the core application for this project
Padrino.mount('Issue987').to('/')

config_-_boot.rb

# Defines our constants
PADRINO_ENV  = ENV['PADRINO_ENV'] ||= ENV['RACK_ENV'] ||= 'development'  unless defined?(PADRINO_ENV)
PADRINO_ROOT = File.expand_path('../..', __FILE__) unless defined?(PADRINO_ROOT)

# Load our dependencies
require 'rubygems' unless defined?(Gem)
require 'bundler/setup'
Bundler.require(:default, PADRINO_ENV)

##
# ## Enable devel logging
#
# Padrino::Logger::Config[:development][:log_level]  = :devel
# Padrino::Logger::Config[:development][:log_static] = true
#
# ## Configure your I18n
#
# I18n.default_locale = :en
#
# ## Configure your HTML5 data helpers
#
# Padrino::Helpers::TagHelpers::DATA_ATTRIBUTES.push(:dialog)
# text_field :foo, :dialog => true
# Generates: <input type="text" data-dialog="true" name="foo" />
#
# ## Add helpers to mailer
#
# Mail::Message.class_eval do
#   include Padrino::Helpers::NumberHelpers
#   include Padrino::Helpers::TranslationHelpers
# end

##
# Add your before (RE)load hooks here
#
Padrino.before_load do
end

##
# Add your after (RE)load hooks here
#
Padrino.after_load do
end

Padrino.load!