Yii2 rest api 404 error, what did you do wrong?

Question

Yii

Good day! I did everything as per the instructions, but I feel that I didn’t write something 100% correctly, since the instruction was made simpler, but for me it’s a bit not simple.
I use an advanced template, there is such a path: backend/modules/media_library/сontrollers/rest/
In this folder, lie MediaLibraryController.php

<?php
namespace backend\modules\media_library\controllers\rest;

use yii\rest\ActiveController;

class MediaLibraryController extends ActiveController
{
    public $modelClass = 'backend\modules\media_library\models\MediaLibrary';
}

I added [b]parsers[/b] and the controller to the backend config file:

'components' => [
    'request' => [
        'csrfParam' => '_csrf-backend',
        'baseUrl' => '/admin',
        'parsers' => [
            'application/json' => 'yii\web\JsonParser',
        ],
        'cookieValidationKey' => 'key',
    ],
    ...
    'urlManager' => [
        'enablePrettyUrl' => true,
        'showScriptName' => false,
        'rules' => [
            '' => 'site/index',
            '<controller:\w+>/<action:\w+>/' => '<controller>/<action>',
            ['class' => 'yii\rest\UrlRule', 'controller' => 'media_library'],
        ],
    ]
],

Well, it's understandable when requesting https://site.com/media_librarys and https://site.com/admin/media_librarys throws out a 404 error...
Please tell me how to be and what I'm doing wrong?
Thanks in advance for the replies!

Answer 1

The error was in the line where I specified the controller, it would, of course, be specified incorrectly.
Corrected for

['class' => 'yii\rest\UrlRule', 'controller' => 'media-library/rest/media-library']

and everything works.

Answer 2

Did you add the module to the config?

'components' => [
  //...
],
'modules' => [
  'media_librarys' => [
    'class' => backend\modules\media_library\Module::class
  ]
]

Answer 3

Для таких же ищущих ответ на этот вопрос поясню:
1. UrlRule ждет пропертю controller, которая в доке описана как ID контроллера, но это не совсем так. Если используете Advanced template, то надо указать и имя модуля moduleName/controller (user/auth).
2. Если вы также, как и я используете единственное число в именовании, то не забудьте выключить нафиг pluralize.
Тогда конечный вариант для меня выглядел так

['class' => 'yii\rest\UrlRule', 'controller' => 'user/auth', 'pluralize' => false],