Online talk about basic intro to Elixir and Phoenix for local university students source code: https://github.com/payout-one/fri_live

1. Power of Elixir
with scalable application
for beginners
Better way to pay
Oliver
Payout
CTO
Oct 2020

2. Current version 1.11.1 (Oct 2020)
Since 2011
Based on BEAM (1982-1991 …)
Supported by Plataformatec(Dashbit) acquired by
NuBank
1028 contributors
> 16k commits
Intro - Elixir
Forum
~20k topics
~15k users (2.8k active)
Slack > 29k users

3. Current version 1.5.6 (Oct 2020)
Since 2014
899 contributors
> 6k commits
Intro - Phoenix
Supported by Plataformatec(Dashbit)
acquired by NuBank
Plug vs Middleware(Rails)

4. Why Elixir
Elixir
● + Erlang
● + Syntax
● + Syntax similar to Ruby
● + Learning curve
● + Phoenix
● - “Young” language
● - OOP -> FP
● - New Environment

5. Elixir in Production?
Source: https://curiosum.dev/blog/5-top-tier-companies-that-use-Elixir
https://elixir-companies.com/en

6. How we started
Rails developers
Minimal FP skills
First touch with
- Elixir,
- Erlang,
- Hex,
- Docker
- ...

7. What about YOU?
“Fears are nothing more than a state of mind.”
—Napoleon Hill

8. Let’s see some code

9. |>

10. |>

11. GenServer
Client - Server Behaviour
Supervised
One process
Synch/Async Messaging
State

12. GenServer
Very fast
State in Memory
Bottleneck
Simple Queue - Timeout
No concurrency
More
Solutions
- Pool boy
- DynamicSupervisor
- Task.async

13. Some hints
Pattern match in functions Tuple return
- fault tolerance flow

14. GenStage
“flow”/pipeline
multiple GenServers
buffers
producer,consumer,...
More
https://medium.com/@andreichernykh/elixir-a-few-things-about-genstage-id-wish-to-knew-some-time-ago-b826ca7d48ba

15. GenStage
https://medium.com/@andreichernykh/elixir-a-few-things-about-genstage-id-wish-to-knew-some-time-ago-b826ca7d48ba

16. Let’s see some code
live

17. Official Guides https://elixir-lang.org/getting-started/introduction.html
Elixir School https://elixirschool.com
Functional Web Development with Elixir, OTP, and Phoenix - Lance Halvorsen
The Little Elixir & OTP Guidebook - Benjamin Tan Wei Hao
Property-Based Testing with PropEr, Erlang, and Elixir - Fred Hebert
Nice packages https://github.com/h4cc/awesome-elixir
Application Monitoring https://appsignal.com/
Materials