Добавлен роут и логика для обновления access_token по refresh_token'у

api/components/User/RenewResult.php

@@ -0,0 +1,42 @@
+<?php
+namespace api\components\User;
+
+use Yii;
+use yii\web\IdentityInterface;
+
+class RenewResult {
+
+    /**
+     * @var IdentityInterface
+     */
+    private $identity;
+
+    /**
+     * @var string
+     */
+    private $jwt;
+
+    public function __construct(IdentityInterface $identity, string $jwt) {
+        $this->identity = $identity;
+        $this->jwt = $jwt;
+    }
+
+    public function getIdentity() : IdentityInterface {
+        return $this->identity;
+    }
+
+    public function getJwt() : string {
+        return $this->jwt;
+    }
+
+    public function getAsResponse() {
+        /** @var Component $component */
+        $component = Yii::$app->user;
+
+        return [
+            'access_token' => $this->getJwt(),
+            'expires_in' => $component->expirationTimeout,
+        ];
+    }
+
+}