1. Interactive run the project iex -S mix {project name}

2. recompile recompile inside iex

3. new project (make project directory with relevant components)

   mix new {project name}
   

Phoenix

1. Install Link

   1. install specific version mix archive.install hex phx_new 1.6.16

2. Start a project of Phoenix

   mix phx.new {name of project}

3. Connect to postgresl

   mix ecto.create

   • If error pops up?
     • {project name} - config - dev.exs
     • Check username and password at the bottom of config file.
     • Here I can simply connect to the remote machine’s DB

4. (Model) Link schema to DB

   • mix ecto.migrate
     • if you want to change schema afterward?
     • mix ecto.gen.migration {add_accounts}
     • mix ecto.migrate

5. Start a Phoenix server mix phx.server

   1. Wanna change the first page?
      1. {project name}-web-templates-page-index.html.eex

• When you want to delete DB
  • mix ecto.drop : it deletes the whole DB and ecto

1. Upgrade phoenix version mix deps.update phoenix