After "mix phx.gen.json Accounts User users --no-context --no-schema --no-scope email:string"

lib/beet_round_server_web/controllers/user_controller.ex

@@ -0,0 +1,43 @@
+defmodule BeetRoundServerWeb.UserController do
+  use BeetRoundServerWeb, :controller
+
+  alias BeetRoundServer.Accounts
+  alias BeetRoundServer.Accounts.User
+
+  action_fallback BeetRoundServerWeb.FallbackController
+
+  def index(conn, _params) do
+    users = Accounts.list_users()
+    render(conn, :index, users: users)
+  end
+
+  def create(conn, %{"user" => user_params}) do
+    with {:ok, %User{} = user} <- Accounts.register_user(user_params) do
+      conn
+      |> put_status(:created)
+      |> put_resp_header("location", ~p"/api/users/#{user}")
+      |> render(:show, user: user)
+    end
+  end
+
+  def show(conn, %{"id" => id}) do
+    user = Accounts.get_user!(id)
+    render(conn, :show, user: user)
+  end
+
+  def update(conn, %{"id" => id, "user" => user_params}) do
+    user = Accounts.get_user!(id)
+
+    with {:ok, %User{} = user} <- Accounts.update_user(user, user_params) do
+      render(conn, :show, user: user)
+    end
+  end
+
+  def delete(conn, %{"id" => id}) do
+    user = Accounts.get_user!(id)
+
+    with {:ok, %User{}} <- Accounts.delete_user(user) do
+      send_resp(conn, :no_content, "")
+    end
+  end
+end

lib/beet_round_server_web/controllers/user_json.ex

@@ -0,0 +1,24 @@
+defmodule BeetRoundServerWeb.UserJSON do
+  alias BeetRoundServer.Accounts.User
+
+  @doc """
+  Renders a list of users.
+  """
+  def index(%{users: users}) do
+    %{data: for(user <- users, do: data(user))}
+  end
+
+  @doc """
+  Renders a single user.
+  """
+  def show(%{user: user}) do
+    %{data: data(user)}
+  end
+
+  defp data(%User{} = user) do
+    %{
+      id: user.id,
+      email: user.email
+    }
+  end
+end