Simple Todo App - Phoenix Typing CST Test

Simple Todo App — Phoenix Code

Demonstrates a Phoenix controller and view for managing Todo items with a simple JSON API.

# lib/my_app_web/controllers/todo_controller.ex
defmodule MyAppWeb.TodoController do
  use MyAppWeb, :controller

  alias MyApp.Todos

  def index(conn, _params) do
    todos = Todos.list_todos()
    json(conn, todos)
  end

  def create(conn, %{"todo" => todo_params}) do
    {:ok, todo} = Todos.create_todo(todo_params)
    json(conn, todo)
  end
end

# lib/my_app/todos/todos.ex
defmodule MyApp.Todos do
  alias MyApp.Repo
  alias MyApp.Todos.Todo

  def list_todos do
    Repo.all(Todo)
  end

  def create_todo(attrs) do
    %Todo{}
    |> Todo.changeset(attrs)
    |> Repo.insert()
  end
end

# lib/my_app/todos/todo.ex
defmodule MyApp.Todos.Todo do
  use Ecto.Schema
  import Ecto.Changeset

  schema "todos" do
    field :title, :string
    field :completed, :boolean, default: false
    timestamps()
  end

  def changeset(todo, attrs) do
    todo
    |> cast(attrs, [:title, :completed])
    |> validate_required([:title])
  end
end

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