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EVIL MARTIANS
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EVIL MARTIANS
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Nikolay Sverchkov
@ssnickolay
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Battle of facts
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Dependencies
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???
“Welcome email”
???
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Sidekiq (Redis)
“Welcome email”
???
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GenServer
defmodule EmailSender do
use GenServer
def handle_cast({:send, email}, state) do
# send email
{:noreply, state}
end
end
# Start the server
{:ok, pid} = GenServer.start_link(EmailSender, [])
# This is the client
GenServer.cast(pid, {:send, “[email protected]"})
#=> :ok
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Sidekiq (Redis)
“Welcome email”
[OTP] GenServer
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Sidekiq (Redis)
???
“We love cashcache”
[OTP] GenServer
???
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Sidekiq (Redis)
Memcached
“We love cashcache”
[OTP] GenServer
???
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Memcached vs ETS
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Sidekiq (Redis)
Memcached
“We love cashcache”
[OTP] GenServer
[OTP] ETS
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Sidekiq (Redis)
Memcached
???
“Where is my long polling?”
[OTP] GenServer
[OTP] ETS
???
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Sidekiq (Redis)
Memcached
AnyCable
“Where is my long polling?”
[OTP] GenServer
[OTP] ETS
???
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Sidekiq (Redis)
Memcached
AnyCable
“Where is my long polling?”
[OTP] GenServer
[OTP] ETS
Phoenix Channels
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Sidekiq (Redis)
Memcached
AnyCable
???
Message broker
[OTP] GenServer
[OTP] ETS
Phoenix Channels
???
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Sidekiq (Redis)
Memcached
AnyCable
RabbitMQ
Message broker
[OTP] GenServer
[OTP] ETS
Phoenix Channels
RabbitMQ
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Wait, it's like…
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Erlang -> Java
BEAM -> JVM
Elixir -> ???
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Development
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???
Speed
???
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Spring + Bootsnap
Speed
By Design
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Spring + Bootsnap
???
Architecture [DDD]
By Design
???
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Spring + Bootsnap
Trailblazer\Dry(Hanami?)
Architecture [DDD]
By Design
By Design
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Spring + Bootsnap
Trailblazer\Dry(Hanami?)
???
Umbrella
By Design
By Design
???
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Spring + Bootsnap
Trailblazer\Dry(Hanami?)
Hanami?
Umbrella
By Design
By Design
By Design
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Flawless Victory?
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I have to rewrite everything
with Elixir
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Spring + Bootsnap
Trailblazer\Dry(Hanami?)
Hanami?
???
Debugging
By Design
By Design
Umbrella
???
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Spring + Bootsnap
Trailblazer\Dry(Hanami?)
Hanami?
Pry
Debugging
By Design
By Design
Umbrella
IEx.pry
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Spring + Bootsnap
Trailblazer\Dry(Hanami?)
Hanami?
Pry
???
Deploy
By Design
By Design
Umbrella
IEx.pry
???
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Spring + Bootsnap
Trailblazer\Dry(Hanami?)
Hanami?
Pry
Docker\Capistrano
Deploy
By Design
By Design
Umbrella
IEx.pry
Mix\Distillery
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Spring + Bootsnap
Trailblazer\Dry(Hanami?)
Hanami?
Pry
Docker\Capistrano
???
Tests tooling
By Design
By Design
Umbrella
IEx.pry
Mix\Distillery
???
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Spring + Bootsnap
Trailblazer\Dry(Hanami?)
Hanami?
Pry
Docker\Capistrano
Rspec\Capybara
Tests tooling
By Design
By Design
Umbrella
IEx.pry
Mix\Distillery
Espec\Hound
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Overtime
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Spring + Bootsnap
Trailblazer\Dry(Hanami?)
Hanami?
ActiveRecord (Rom?)
Docker\Capistrano
Rspec\Capybara
Upload Image
By Design
By Design
Umbrella
Ecto
Mix\Distillery
Espec\Hound
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Spring + Bootsnap
Trailblazer\Dry(Hanami?)
Hanami?
ActiveRecord (Rom?)
Docker\Capistrano
Rspec\Capybara
Send Email with attachment
By Design
By Design
Umbrella
Ecto
Mix\Distillery
Espec\Hound
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Spring + Bootsnap
Trailblazer\Dry(Hanami?)
Hanami?
ActiveRecord (Rom?)
Docker\Capistrano
Rspec\Capybara
Authorization
By Design
By Design
Umbrella
Ecto
Mix\Distillery
Espec\Hound
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Spring + Bootsnap
Trailblazer\Dry(Hanami?)
Hanami?
ActiveRecord (Rom?)
Docker\Capistrano
Rspec\Capybara
Update deps
By Design
By Design
Umbrella
Ecto
Mix\Distillery
Espec\Hound
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Summary
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Good for:
Monolith
Microservice
Terrible for:
Concurrency
Key points
Good for:
Microservice
Concurrency
Terrible for:
CMS
Admin panel
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Why exactly Elixir?
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Why exactly Elixir?
• Fast learning
• A lot of job offers
• http://erlangjobs.ru/
• High salary (Ruby < Elixir < Go)
https://t.me/proelixir
https://wunsh.ru/