viewing ruby blossom kaigi2017

Slides from my talk about hanami at rubykaigi2017

Links:
railshurts.com/quiz
awesome-hanami.org
www.ossboard.org
octostar.herokuapp.com
contributors.hanamirb.org
hanamirb.org
gitter.im/hanami/chat
discuss.hanamirb.org

Transcript

1. ❤ 
 Hello ruby kaigi! 
 ❤
3. Japan is awesome
4. What have I learned here?
5. One ramen per day is normal
8. Juice pack
11. Tax free
13. Anton Davydov github.com/davydovanton
 twitter.com/anton_davydov davydovanton.com
14. Stickers
16. Hanami core
17. ruby rom-rb dry-rb rails crystal etc
18. moscow.rb
20. Luca Guidi github.com/jodosha
22. General Ideas
23. Long-term maintenance
24. Modularity Forget about fat models
26. Simplicity and Lightweight Framework is just a tool
27. Architecturally Sound Isolation everywhere
28. Zero Monkey-Patching Don’t think about framework or language
29. railshurts.com/quiz
30. railshurts.com/quiz
31. Threadsafe
33. hanami != rails
34. Typical parts of any web project
35. Web Project Business
 logic Data flow
36. Data flow
37. Container Architecture Clean Architecture
38. Project request
39. App App App request
40. App App App lib request
41. App App App lib App App App lib App App App lib request
42. App App App lib App App lib App App App lib request App
43. apps/ ├── admin │ ├── application.rb │ ├── assets │ │ └── ... │ ├── config │ │ └── ... │ ├── controllers │ │ └── ... │ ├── templates │ │ └── ... │ └── views │ └── ... └── web ├── ...
44. Business Logic
45. lib/ ├── project_name │ ├── interactors │ │ └── create_user.rb │ ├── entities │ │ └── user.rb │ ├── mailers │ │ └── templates │ └── repositories │ └── user_repository.rb └── project_name.rb
46. lib/ ├── project_name │ ├── interactors │ │ └── create_user.rb │ ├── entities │ │ └── user.rb │ ├── mailers │ │ └── templates │ └── repositories │ └── user_repository.rb └── project_name.rb
47. lib/ ├── project_name │ ├── interactors │ │ └── create_user.rb │ ├── entities │ │ └── user.rb │ ├── mailers │ │ └── templates │ └── repositories │ └── user_repository.rb └── project_name.rb
48. lib/ ├── project_name │ ├── interactors │ │ └── create_user.rb │ ├── entities │ │ └── user.rb │ ├── mailers │ │ └── templates │ └── repositories │ └── user_repository.rb └── project_name.rb
49. Gems
50. hanami - Base repository, CLI router - Rack compatible HTTP router for Ruby controller - Full featured and fast actions for Rack utils - Ruby core extensions and class utilities model - Persistence with entities and repositories
51. validations - Validations mixin for Ruby objects helpers - View helpers for Ruby applications view - Presentation with a separation assets - Assets management for Ruby mailer - Mail for Ruby applications
52. Differences
53. # rack class HelloApp def call(env) [200, { **env }, ['Hello!']] end end
54. # hanami-router class HelloApp def call(env) [200, { **env }, ['Hello!']] end end router = Hanami::Router.new router.get '/', to: 'hello_app'
55. # sinatra class Hello < Sinatra get '/' do 'Hello!' end end
56. # hanami Hanami::Router.new do get '/' do [200, { **env }, ['Hello!']] end end
57. Rails and Hanami
58. Controllers
59. class UsersController < AC def new end def send_sms end
 private def user_params end end Controllers: Rails
60. Controllers: hanami action module Web::Controllers::Board class Index include Web::Action params do required(:email).filled end def call(params) end end end
61. Controllers: hanami module Web::Controllers::Board class Index include Web::Action params do required(:email).filled end def call(params) end end end
62. Controllers: hanami module Web::Controllers::Board class Index include Web::Action params do required(:email).filled end def call(params) end end end
63. Model
64. class User < ActiveRecord::Base
 include Gravtastic before_destroy :yank_gems has_many :rubygems, through: :ownerships validates :name, presence: true # ... end Model: Rails
65. class User < ActiveRecord::Base
 include Gravtastic before_destroy :yank_gems has_many :rubygems, through: :ownerships validates :name, presence: true # ... end Model: Rails
66. class User < ActiveRecord::Base
 include Gravtastic before_destroy :yank_gems has_many :rubygems, through: :ownerships validates :name, presence: true # ... end Model: Rails
67. class User < ActiveRecord::Base
 include Gravtastic before_destroy :yank_gems has_many :rubygems, through: :ownerships validates :name, presence: true # ... end Model: Rails
68. class User < ActiveRecord::Base
 include Gravtastic before_destroy :yank_gems has_many :rubygems, through: :ownerships validates :name, presence: true # ... end Model: Rails
69. Model: hanami hanami + ROM = ❤ rom-rb.org
70. Model: hanami entity class User < Hanami::Entity # ... end
71. Model: hanami entity >> user = User.new(id: 1) => #<User:0x007fa14d1e0528 @attributes={:id=>1}> >> user.id => 1 >> user.id = 1 NoMethodError: undefined method `id=' for #<User:0x007fa14d1e0528 @attributes={:id=>1}> Did you mean? id
72. Model: hanami entity >> user = User.new(id: 1) => #<User:0x007fa14d1e0528 @attributes={:id=>1}> >> user.id => 1 >> user.id = 1 NoMethodError: undefined method `id=' for #<User:0x007fa14d1e0528 @attributes={:id=>1}> Did you mean? id
73. Model: hanami entity >> user = User.new(id: 1) => #<User:0x007fa14d1e0528 @attributes={:id=>1}> >> user.id => 1 >> user.id = 1 NoMethodError: undefined method `id=' for #<User:0x007fa14d1e0528 @attributes={:id=>1}> Did you mean? id
74. class UserRepository < Hanami::Repository associations do has_many :books end def find_by_name(name) users # => ROM relation users.where(name: name).limit(1).order { id }.one end end Model: hanami repository
75. >> repo = UserRepository.new => #<UserRepository relations=[:users]> >> repo.find(1) => #<User:0x007fa14d1a1fa8 @attributes={…}> >> repo.find_by_name(‘Anton’) => #<User:0x007fa14d1a1fa8 @attributes={…}> Model: hanami repository
76. View
77. View: Rails rails view (partials?) + rails helper
78. View: Hanami hanami view (ruby class) + templates
79. Assets
80. Pros and Cons
81. No magic
82. module Web::Controllers::Board class Index include Web::Action def call(params) end end end
83. Action test describe Web::Controllers::Board::Index do let(:action){ Board::Index.new } let(:params){ Hash[] } it 'is successful' do response = action.call(params) response[0].must_equal 200 end end
84. Action test describe Web::Controllers::Board::Index do let(:action){ Board::Index.new } let(:params){ Hash[] } it 'is successful' do response = action.call(params) response[0].must_equal 200 end end
85. Action test describe Web::Controllers::Board::Index do let(:action){ Board::Index.new } let(:params){ Hash[] } it 'is successful' do response = action.call(params) response[0].must_equal 200 end end
86. No monkey-patching
87. Best practices
88. Dependency Injection
90. The logic separation
91. Interactors out the box
94. TDD
97. TDD
98. Good but not great documentation
99. Missing Gems
100. WebSockets
 Pagination
 WebPack GraphQL
 Devise 2016
101. WebSockets
 Pagination
 WebPack GraphQL
 Devise Now
102. awesome-hanami.org
103. Projects are good
 for new contributors
104. www.ossboard.org
105. octostar.herokuapp.com
106. contributors.hanamirb.org
107. Contacts hanamirb.org gitter.im/hanami/chat discuss.hanamirb.org
108. github.com/davydovanton
 twitter.com/anton_davydov davydovanton.com Thank you ❤