Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
Lotus
Search
Luca Guidi
October 14, 2014
Programming
8
530
Lotus
Lotus: a complete web framework for Ruby.
Luca Guidi
October 14, 2014
Tweet
Share
More Decks by Luca Guidi
See All by Luca Guidi
Functional Web with Hanami
jodosha
4
400
Lessons Learned While Building Hanami
jodosha
4
1.1k
Lotus RubyDay 2015
jodosha
2
870
Lotus For Rails Developers
jodosha
2
290
Lotus - Brighton Ruby 2015
jodosha
3
860
A Rails Criticism
jodosha
4
1.6k
Other Decks in Programming
See All in Programming
なぜ「共通化」を考え、失敗を繰り返すのか
rinchoku
1
470
VS Code Update for GitHub Copilot
74th
1
300
Azure AI Foundryではじめてのマルチエージェントワークフロー
seosoft
0
120
PostgreSQLのRow Level SecurityをPHPのORMで扱う Eloquent vs Doctrine #phpcon #track2
77web
2
290
Julia という言語について (FP in Julia « SIDE: F ») for 関数型まつり2025
antimon2
3
980
都市をデータで見るってこういうこと PLATEAU属性情報入門
nokonoko1203
1
560
#kanrk08 / 公開版 PicoRubyとマイコンでの自作トレーニング計測装置を用いたワークアウトの理想と現実
bash0c7
1
290
ニーリーにおけるプロダクトエンジニア
nealle
0
100
Team operations that are not burdened by SRE
kazatohiei
1
180
Cursor AI Agentと伴走する アプリケーションの高速リプレイス
daisuketakeda
1
130
Webの外へ飛び出せ NativePHPが切り拓くPHPの未来
takuyakatsusa
2
320
deno-redisの紹介とJSRパッケージの運用について (toranoana.deno #21)
uki00a
0
140
Featured
See All Featured
KATA
mclloyd
29
14k
"I'm Feeling Lucky" - Building Great Search Experiences for Today's Users (#IAC19)
danielanewman
228
22k
Save Time (by Creating Custom Rails Generators)
garrettdimon
PRO
31
1.2k
Site-Speed That Sticks
csswizardry
10
650
RailsConf & Balkan Ruby 2019: The Past, Present, and Future of Rails at GitHub
eileencodes
138
34k
BBQ
matthewcrist
89
9.7k
Exploring the Power of Turbo Streams & Action Cable | RailsConf2023
kevinliebholz
33
5.9k
GitHub's CSS Performance
jonrohan
1031
460k
Optimizing for Happiness
mojombo
379
70k
Speed Design
sergeychernyshev
32
1k
Let's Do A Bunch of Simple Stuff to Make Websites Faster
chriscoyier
507
140k
Visualization
eitanlees
146
16k
Transcript
Lotus A c o mp l e t e web
framework @jodosha / #lotusrb
None
Do we need yet another web framework?
Are you reinventing the wheel?
What if we never reinvented the wheel?
The wheel
None
We reinvented the wheel after observing it
Complexity should be managed, not hidden.
Why does this matter?
The ultimate goal is…
Money https://flic.kr/p/aFAEHR
Use case: http://bit.ly/github-rails-upgrade
We should not trade control for convenience.
Cost of maintenance 0 20 40 60 80 Years 0
1 2 3 Covenience Simplicity
Silver bullets are a lie.
Philosophy
Standalone frameworks
Full stack applications
Few conventions More objects No monkey- patching
Few conventions More objects No monkey- patching
Few conventions More objects No monkey- patching
Simple
Simplicity is achieved by removing what isn’t essential
Coffee https://flic.kr/p/6rX8pn
Convenient https://flic.kr/p/93Bk4K
Simple https://flic.kr/p/mn57Zm
The output https://flic.kr/p/9oG93w
Lotus doesn’t enable optional features by default
We perceive as simple the things we are familiar with
BookRepository.find 23
Rails.application.routes.draw do get '/' => 'home#index', as: :home resources :books
end ! Rails.application.routes # => ???
router = Lotus::Router.new do get '/', to: 'home#index', as: :home
resources :books end ! router.path(:home) # => '/' router.call(env) # Rack env run router # in config.ru
Fast
Micro benchmarks http://bit.ly/lotus-micro-bench
HTTP benchmarks http://bit.ly/lotus-http-bench
Rails 1027.73 Sinatra 2207.73 Lotus 4175.90 http://bit.ly/lotus-http-bench req/s
Rails 1027.73 Sinatra 2207.73 Lotus 4175.90 http://bit.ly/lotus-http-bench req/s
Rails 1027.73 Sinatra 2207.73 Lotus 4175.90 http://bit.ly/lotus-http-bench req/s
Testable
Testability is a virtue
There is no “test-damaged” design
class Show include Lotus::Action ! expose :book ! def initialize(repository
= BooksRepository) @repository = repository end ! def call(params) @book = @repository.find params[:id] end end
book = Object.new repository = Minitest::Mock.new repository.expect(:find, book, [Integer]) !
action = Show.new(repository) action.call(id: 23) # => [200, {}, nil] ! repository.verify action.book.must_equal book # assigns(:book) isn’t needed
Demo
The future
Get involved
lotusrb.org #lotusrb @jodosha
Q&A
Thank you!