What's the fuss about Phoenix?

WebCamp Zagreb, 2016

1. What’s the fuss about Phoenix? @sasajuric
 aircloak.com
2. Phoenix web framework Elixir programming language Erlang VM written in runs on
3. productivity simplicity maintainability interoperability fault-tolerance scalability
4. Erlang is a programming language used to build massively scalable soft real-time systems with requirements on high availability. erlang.org
7. separate execution no shared memory separate garbage collection cooperation through communication isolated crashes detectable crashes of other processes
8. run different "things" separately
9. scheduler scheduler scheduler scheduler CPU CPU CPU CPU Erlang VM
10. Node 1 Node 2 Node 3
13. DEMO
14. conn conn your code
15. conn conn plug
16. conn log conn handle authenticate authorize fetch session
17. endpoint conn conn router controller
18. endpoint conn conn router controller endpoint conn conn router controller endpoint conn conn router controller
19. CODE
20. client server socket
21. client server
22. client server join "lobby" send "room:42", "message", payload send "room:42", "message", payload socket send “lobby", "rooms", payload join "room:42"
23. socket client channel channel socket client channel channel
24. import Socket from "phoenix" socket = new Socket("/socket") socket.connect() room = socket.channel("room:elixir", payload) room.join()
25. room.push("some_event", payload) room.on("some_event", (payload) => { // ... })
26. defmodule MyEndpoint do socket "/socket", MySocket # ... end
27. defmodule MySocket do use Phoenix.Socket transport :websocket, Phoenix.Transports.WebSocket transport :longpoll, Phoenix.Transports.LongPoll channel "lobby", LobbyChannel channel "room:*", RoomChannel # ... end
28. defmodule RoomChannel do use Phoenix.Channel def join(topic, payload, socket) do # ... end def handle_in(event, payload, socket) do # ... end def handle_info(erlang_message, socket) do # ... end end
29. push(socket, event, payload) broadcast(socket, event, payload) broadcast_from(socket, event, payload)
30. on_some_ui_event(() => channel.push("user_message", payload)) channel.on("user_message", (payload) => render(payload))
31. defmodule RoomChannel do # ... def handle_in(event, payload, socket) do broadcast(socket, event, payload) # ... end # ... end
32. conference program chat
33. conference program chat ticket purchasing newsletters ratings raffles administration …
34. start simple go far
35. onboarding - getting started guides - Elixir - Phoenix - elixirforum.com
36. 40% off with code ctwwczg
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