Phoenix Web Framework: The Unauthorized Guide

Install the Phoenix application generator

To install the newest version of the Phoenix application generator, run the following command from the terminal:

mix archive.install hex phx_new

Tip: If you get an error when completing this step, then make sure you have installed Elixir as described in the introduction.

Create the Phoenix application

Navigate to the directory where you want to put your Phoenix application, and run the generator command to create our TodoList project:

mix phx.new todo_list

When the Phoenix application generator asks if you want to Fetch and install dependencies? [Yn], press Enter to install the dependencies.

Start the application to make sure everything works

The project has been created in the todo_list directory. Let's do a basic sanity check to make sure it works:

# Navigate to the project directory
cd todo_list

# Install the dependencies
mix deps.get

# Start the application with the server
iex -S mix phx.server

Mention errors, Postgres, etc.

Created 2025-02-11. Modified 2025-11-17.