Add .formatter.exs files for example apps and format them

examples/phoenix_app/.formatter.exs

@@ -0,0 +1,4 @@
+[
+  import_deps: [:ecto, :phoenix, :plug, :open_api_spex],
+  inputs: ["*.{ex,exs}", "{config,lib,test}/**/*.{ex,exs}"]
+]

examples/phoenix_app/lib/phoenix_app/accounts/user.ex

@@ -3,8 +3,8 @@ defmodule PhoenixApp.Accounts.User do
   alias __MODULE__
 
   schema "users" do
-    field :name, :string
-    field :email, :string
+    field(:name, :string)
+    field(:email, :string)
     timestamps()
   end
 

examples/phoenix_app/lib/phoenix_app_web/controllers/oauth_controller.ex

@@ -4,10 +4,12 @@ defmodule PhoenixAppWeb.OauthController do
   def access_token(conn = %Plug.Conn{}, _params) do
     provider_params = conn.body_params
 
-    provider_response = HTTPoison.post!(
-      "https://github.com/login/oauth/access_token",
-      Jason.encode!(provider_params),
-      [{"content-type", "application/json"}])
+    provider_response =
+      HTTPoison.post!(
+        "https://github.com/login/oauth/access_token",
+        Jason.encode!(provider_params),
+        [{"content-type", "application/json"}]
+      )
 
     provider_body = provider_response.body
 

examples/phoenix_app/lib/phoenix_app_web/views/error_view.ex

@@ -12,6 +12,6 @@ defmodule PhoenixAppWeb.ErrorView do
   # In case no render clause matches or no
   # template is found, let's render it as 500
   def template_not_found(_template, assigns) do
-    render "500.html", assigns
+    render("500.html", assigns)
   end
 end

examples/plug_app/.formatter.exs

@@ -0,0 +1,4 @@
+[
+  import_deps: [:ecto, :plug, :open_api_spex],
+  inputs: ["*.{ex,exs}", "{config,lib,test}/**/*.{ex,exs}"]
+]