Elixir phoenix lab

Doing a lab using elixir and phoenix

Documentastions

elixir phoenix

Precondisions

Precondisions ubuntu

[ $(elixir --version | grep -c Elixir) -eq 1 ] && echo "Installed"

if Installed jump to Phoenix install elixir

install elixir on ubuntu

sudo add-apt-repository ppa:rabbitmq/rabbitmq-erlang
sudo apt update
sudo apt install elixir erlang-dev erlang-xmerl

install elixir on mac

brew install elixir


brew install postgresql

Phoenix

install Phoenix

mix archive.install hex phx_new

install hello demo

mix phx.new hello

We are almost there! The following steps are missing:

$ cd hello

Then configure your database in config/dev.exs and run:

$ mix ecto.create
`
Compiling 15 files (.ex)

warning: defining a Gettext backend by calling

use Gettext, otp_app: ...

is deprecated. To define a backend, call:

use Gettext.Backend, otp_app: :my_app

Then, instead of importing your backend, call this in your module:

use Gettext, backend: MyApp.Gettext

lib/hello_web/gettext.ex:23: HelloWeb.Gettext (module)

Generated hello app

16:51:10.243 [error] Postgrex.Protocol (#PID<0.436.0>) failed to connect: ** (DBConnection.ConnectionError) tcp connect (localhost:5432): connection refused - :econnrefused

16:51:10.250 [error] Postgrex.Protocol (#PID<0.442.0>) failed to connect: ** (DBConnection.ConnectionError) tcp connect (localhost:5432): connection refused - :econnrefused ** (Mix) The database for Hello.Repo couldn't be created: killed

`

Start your Phoenix app with:

$ mix phx.server

You can also run your app inside IEx (Interactive Elixir) as:

$ iex -S mix phx.server