Popularity
2.1
Stable
Activity
4.2
Stable
82
5
9

Description

Very fast; "Sinatra-like" routes: support for get, post, put, patch, delete, options, head; Template rendering and caching through Tilt or ERB from stdlib; Set basic filters/callbacks with the before/after methods; Include middlewares with the use method; Mount rack apps with the map method; Sessions through Rack::Session; Halt execution at any point using Ruby's throw/catch mechanism; Thread-safe

Code Quality Rank: L5
Monthly Downloads: 54
Programming language: Ruby
License: MIT License

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README

Nancy

Sinatra's little daughter

Frank and Nancy by classic film scans

Description

Minimal Ruby microframework for web development inspired in Sinatra and Cuba

Installation

Install the gem:

$ gem install nancy

or add it to your Gemfile:

gem "nancy"

Usage

Here's a simple application:

# hello.rb
require "nancy"
require "nancy/render"

class Hello < Nancy::Base
  use Rack::Session::Cookie, secret: ENV['SECRET_TOKEN'] # for sessions
  include Nancy::Render

  get "/" do
    "Hello World"
  end

  get "/hello" do
    response.redirect "/"
  end

  get "/hello/:name" do
    "Hello #{params['name']}"
  end

  post "/hello" do
    "Hello #{params['name']}"
  end

  get "/template" do
    @message = "Hello world"
    render("views/hello.erb")
  end

  post "/login" do
    @user = User.find(params['username'])
    halt 401, "unauthorized" unless @user.authenticate(params['password'])
    session[:authenticated] = true
    render("views/layout.erb") { render("views/welcome.erb") }
  end

  before do
    if request.path_info == "/protected" && !session[:authenticated]
      halt 401, "unauthorized"
    end
  end

  get "/protected" do
    "Protected area!!!"
  end

  after do
    if request.path_info ~= /\.json$/
      response['Content-Type'] = 'application/json'
    else
      response['Content-Type'] = 'text/html'
    end
  end

  get "/users/:id.json" do
    @user = User.find(params['id'])
    halt 404 unless @user
    UserSerializer.new(@user).to_json
  end

  map "/resque" do
    run Resque::Server
  end

  map "/nancy" do
    run AnotherNancyApp.new
  end
end

To run it, you can create a config.ru file:

# config.ru
require "./hello"

run Hello.new

You can now run rackup and enjoy what you have just created.

Check examples folder for a detailed example.

Features

  • Very fast
  • "Sinatra-like" routes: support for get, post, put, patch, delete, options, head
  • Template rendering and caching through Tilt or ERB from stdlib
  • Set basic filters/callbacks with the before/after methods
  • Include middlewares with the use method
  • Mount rack apps with the map method
  • Sessions through Rack::Session
  • Halt execution at any point using Ruby's throw/catch mechanism
  • Thread-safe

Version history

0.4.0 (unreleased)

  • Added support for basic before/after filters
  • Added Nancy::BasicRender for rendering of templates using ERB from stdlib
  • Refactored full code to set proper accessors for all methods
  • Removed Nancy::Base.call, only instances can be used to run apps
  • Removed redirect helper, use instead response.redirect '/uri'
  • Nancy::Render is not loaded automatically, "nancy/render" needs to be required
  • Removed tilt dependency, to use Nancy::Render add it manually to app
  • Nancy::Base#halt can't be used with a Rack::Response object anymore

0.3.0 (Octuber 3, 2012)

  • Removed unneccesary Thread accessors, use simple instance getters instead
  • Refactored Nancy::Base#halt

0.2.0 (April 12, 2012)

  • Set PATH INFO to '/' when is blank
  • Fixed session method: Raise error when is used but Rack::Session isn't present
  • Added support for HEAD and OPTIONS HTTP verbs
  • Refactored Base.use to use a Rack::Builder internally
  • Added Base.map to redirect requests to Rack sub-apps

0.1.0 (April 4, 2012)

  • Created a new Github Page for the project
  • Added env accessor, this add support for Shield
  • Added support for templates caching using Tilt::Cache
  • Moved render method from Nancy::Base to Nancy::Render module
  • Refactored Nancy::Base to evaluate code blocks at instance level
  • Fixed passing of render options to Tilt (thanks to lporras)

0.0.1 (March 20, 2012)

  • Initial Release

Contributing

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

Copyright

Copyright (c) 2012-2014 Guillermo Iguaran. See LICENSE for further details.


*Note that all licence references and agreements mentioned in the Nancy README section above are relevant to that project's source code only.