Chapter 2 - The Lay of the Land

Note: There is a new version of the book for Phoenix 1.4

brew install erlang

erl --version
[Erlang/OPT 22… Eshell V10.6.2 (abort with ^G)]

brew install elixir

elixir -v
[Erlang/OTP 22 … Elixir 1.9.4 (compiled with Erlang/OPT 22]

mix local.hex

(node already installed)

node --version
[v10.13.0]

brew install postgresql

psql --version
[psql (PostreSQL) 12.1]

mix archive.install hex phx_new 1.4.12

mix phx.new --version
[Phoenix v1.4.12]

sudo apt install -y postgresql

psql --version

sudo systemctl restart postgresql.service

sudo -u postgres psql template1

template1=# ALTER USER postgres with encrypted password ‘phoenix’;

template1=# quit (or something like that)

mix phx.new hello

cd hello/config

nano dev.exs

Change password to ‘phoenix’

cd ../assets

npm install - no need to do this anymore, it seems

cd ..

mix ecto.create

mix phx.server

Notice that instead of ‘phoenix’, one needs now to use the word ‘phx’

mix phx.new hello
cd hello

nano config/dev.exs

On line 5, change username to match mac user

(I also changed the hostname on line 8 to 127.0.0.1 from localhost, but this change probably didn’t matter)

 initdb /usr/local/var/postgres2 
 pg_ctl -D /usr/local/var/postgres2 -l logfile start
 mix ecto.create