After 'mix phx.gen.json Items Item items name:string description:string info:string amount:integer factor:float type:string --no-context --no-schema'.

lib/generic_rest_server_web/controllers/item_controller.ex

@@ -0,0 +1,43 @@
+defmodule GenericRestServerWeb.ItemController do
+  use GenericRestServerWeb, :controller
+
+  alias GenericRestServer.Items
+  alias GenericRestServer.Items.Item
+
+  action_fallback GenericRestServerWeb.FallbackController
+
+  def index(conn, _params) do
+    items = Items.list_items(conn.assigns.current_scope)
+    render(conn, :index, items: items)
+  end
+
+  def create(conn, %{"item" => item_params}) do
+    with {:ok, %Item{} = item} <- Items.create_item(conn.assigns.current_scope, item_params) do
+      conn
+      |> put_status(:created)
+      |> put_resp_header("location", ~p"/api/items/#{item}")
+      |> render(:show, item: item)
+    end
+  end
+
+  def show(conn, %{"id" => id}) do
+    item = Items.get_item!(conn.assigns.current_scope, id)
+    render(conn, :show, item: item)
+  end
+
+  def update(conn, %{"id" => id, "item" => item_params}) do
+    item = Items.get_item!(conn.assigns.current_scope, id)
+
+    with {:ok, %Item{} = item} <- Items.update_item(conn.assigns.current_scope, item, item_params) do
+      render(conn, :show, item: item)
+    end
+  end
+
+  def delete(conn, %{"id" => id}) do
+    item = Items.get_item!(conn.assigns.current_scope, id)
+
+    with {:ok, %Item{}} <- Items.delete_item(conn.assigns.current_scope, item) do
+      send_resp(conn, :no_content, "")
+    end
+  end
+end