April 2018
Beginner to intermediate
406 pages
9h 33m
English
Content preview from Phoenix Web Development
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Understanding channels
As mentioned previously, channels are the in-between for sockets and topics. They essentially act as the controllers of the Phoenix real-time application puzzle. The easiest way for us to really understand this is to dive right into the code and start messing around with things until they break!
Phoenix provides a set of macros for us to use with channels, much in the same way it does for controllers (via use VocialWeb, :controller) or with views (via use VocialWeb, :view). We'll create a new file at lib/vocial_web/channels/polls_channel.ex:
defmodule VocialWeb.PollsChannel do use VocialWeb, :channelend
Notice that here we're using the :channel macro instead of :controller or :view or anything like that! Next, we'll ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.