Getting Started With Phoenix - ElixirConf UY

https://github.com/elainenaomi/taskify

Transcript

1. Getting Started with PHOENIX ElixirConf UY 2022
2. W ORKSHOP Montevideo, UY
3. W ORKSHOP
4. railsgirls.com.br
5. Elixir + Ruby
7. Lessons Learned from Elixir Learning Paths https://www.youtube.com/watch?v=I1jUWz1RP2U https://speakerdeck.com/elainenaomi/elixir-conf-eu-lessons-learned-from-elixir-learning-paths
8. Code Smells, Refatoração e Elixir https://www.youtube.com/watch?v=3-1PCurON4Q https://speakerdeck.com/elainenaomi/elixir-brasil-2020-code-smells-refactoring-e-elixir
9. https://github.com/lucasvegi/Elixir-Code-Smells a scientific research about code smells in Elixir
10. olá
11. São Paulo / Brazil
12. Software Engineer/Developer (since 2008) B.Sc. in Computer Engineering M.Sc. in Computer Science ELAINE NAOMI WATANABE twitter.com/elaine_nw speakerdeck.com/elainenaomi linkedin.com/in/elainenaomi
14. The RealReal - Elixir Adoption Story youtube.com/watch?v=sTs_4T1ufLY
15. The RealReal is one of the ElixirConf UY's sponsors
18. therealreal.com/careers including Fully Remote opportunities
20. DAY 1: WORKSHOP
23. Goal: to build a web app with Phoenix
25. WHAT IS A WEB FRAMEWORK?
26. https://en.wikipedia.org/wiki/Web_framework Web Framework It is standard way to build and deploy web applications Automation of common activities performed in web development For example, providing libraries for database access, templating frameworks, session management, often focusing on code reuse
27. https://en.wikipedia.org/wiki/Web_framework Web Framework It is standard way to build and deploy web applications Automation of common activities performed in web development For example, providing libraries for database access, templating frameworks, session management, often focusing on code reuse
28. https://en.wikipedia.org/wiki/Web_framework Web Framework It is standard way to build and deploy web applications Automation of common activities performed in web development For example, providing libraries for database access, templating frameworks, session management, often focusing on code reuse
30. WHAT IS PHOENIX?
31. Phoenix Framework Web framework created in 2014 for Elixir programming language Creator: Chris McCord Latest version: 1.6.15 Released date: 2022-10-26
32. Phoenix Framework Web framework created in 2014 for Elixir programming language Creator: Chris McCord Latest version: 1.6.15 Released date: 2022-10-26
33. ELIXIR
34. Elixir + Erlang VM Highly Scalable and Concurrent Applications
35. blog.whatsapp.com/1-million-is-so-2011 ERLANG 2 million connections on a single node
36. 2 million connections on a single node phoenixframework.org/blog/the-road-to-2-million-websocket-connections ELIXIR
37. https://web.archive.org/web/20181011093614/https://www.techworld.com/apps-wearables/how-elixir-helped-bleacher-re port-handle-8x-more-traffic-3653957/
38. From 150 servers to 5!
39. Productivity and Performance for Developers
40. Convention over Configuration
41. Concurrency in all environments, including tests and development
42. With new tools to build modern web app
43. Real Time Web
46. EXPECTATIONS
47. Introducción a Phoenix
48. our toy program for this workshop
50. github.com/elainenaomi/taskify
51. AGENDA
52. ➔ Building a landing page ➔ Adding the authentication system ➔ Creating, reading, updating, deleting user tasks ➔ Adding sub-tasks to user tasks ➔ Building the task status from sub-tasks ➔ Deploying on fly.io
53. SETUP
54. elixir -v
55. ➔ Elixir 1.14.1 ➔ Erlang 24.3.4.6
56. postgres -V
57. mix archive.install hex phx_new
58. mix phx.new -v
59. TASK #001
60. mix phx.new taskify
61. mix phx.server
63. Live Dashboard
65. TASK #002
66. page title new path update the content, including logo image
68. TASK #003
69. Log in Sign Up
71. TASK #004
72. Finally building tasks!
73. logged user
75. Ecto != ORM
77. TASK #005
78. Nested resource: tasks/:task_id/sub_tasks logged user
80. TASK #006
82. sub-tasks status on task list
83. TASK #007
85. Deploying on Fly.io
86. I'm using fly.io for this toy app because of the simple setup Installing flyctl command For example, via homebrew for mac os brew install flyctl Creating an account flyctl auth signup Launching the app cd taskify fly launch Stopping the app fly scale count 0 https://fly.io/docs/hands-on/install-flyctl/ https://fly.io/docs/elixir/getting-started/
87. taskify.fly.dev
88. Deploying with Releases
89. MIX_ENV=prod mix release https://hexdocs.pm/mix/1.14.1/Mix.Tasks.Release.html
90. mix phx.gen.release --docker
91. build time vs runtime
92. config/config.exs vs config/runtime.ex https://elixir-lang.org/getting-started/mix-otp/config-and-releases.html#configuration
93. No Support to Hot Code Upgrades
94. "Given most teams can use other techniques that are language agnostic to upgrade their systems, such as Blue/Green deployments, Canary deployments, Rolling deployments, and others, hot upgrades are rarely a viable option" https://hexdocs.pm/mix/1.14.1/Mix.Tasks.Release.html#module-hot-code-upgrades
95. https://blog.miguelcoba.com/series/deploying-elixir
96. WRAPPING UP
97. ➔ Introduction to Phoenix Request Life-Cycle ➔ Introduction to Phoenix generators ➔ Introduction to Ecto: migrations, Ecto schema and validations, Ecto queries ➔ Introduction to authentication with mix phx.gen.auth ➔ An overview of data integrity :) ➔ Deployment with fly.io
98. in 2 hours!
99. REFERENCES
101. https://elixirforum.com/
103. ADDITIONAL REFERENCES
105. https://medium.com/very-big-things Clarity | Saša Jurić | ElixirConf EU 2021 https://www.youtube.com/watch?v=6sNmJtoKDCo
106. https://ulisses.dev/
107. Writing extensible functional code - Renan Ranelli https://www.youtube.com/watch?v=1HXMUI7tiCQ
108. SOLID Elixir • Georgina McFadyen • GOTO 2018 https://www.youtube.com/watch?v=rmftOs2BzgU
111. github.com/podium/elixir-secure-coding
112. github.com/podium/elixir-secure-coding
113. !!Con 2019- Tail Call Optimization: The Musical!! by Anjana Vakil & Natalia Margolis https://www.youtube.com/watch?v=-PX0BV9hGZY
115. https://pesquisecomelixir.com.br/
116. https://github.com/lucasvegi/Elixir-Code-Smells
117. O Elixir do futuro, com Charlotte Lorelei Oliveira https://pt-br.eventials.com/locaweb/o-elixir-do-futuro-com-charlotte-lorelei-oliveira/ ELIXIR
118. MY CONTRIBUTIONS
119. ELIXIR youtube.com/ElixirLabOrg
120. ELIXIR
121. ELIXIR
122. CARNIVAL EDITION ELIXIR
123. https://sourcelevel.io/code-review-ebook
124. https://github.com/elainenaomi/taskify
125. speakerdeck.com/elainenaomi elainenaomi.dev Muito obrigada illustrations from undraw.co translation: muchas gracias