diff --git a/common/models/User.php b/common/models/User.php
index d706022..1658563 100755
--- a/common/models/User.php
+++ b/common/models/User.php
@@ -3,10 +3,10 @@
 namespace common\models;
 
 use Yii;
-use yii\base\NotSupportedException;
 use yii\behaviors\TimestampBehavior;
 use yii\db\ActiveRecord;
 use yii\web\IdentityInterface;
+use yii\web\UnauthorizedHttpException;
 
 /**
  * User model
@@ -64,14 +64,25 @@ class User extends ActiveRecord implements IdentityInterface
         return static::findOne(['id' => $id, 'status' => self::STATUS_ACTIVE]);
     }
 
-    /**
-     * {@inheritdoc}
-     */
-    public static function findIdentityByAccessToken($token, $type = null)
+    public function generateAccessToken()
     {
-        throw new NotSupportedException('"findIdentityByAccessToken" is not implemented.');
+        $this->access_token = Yii::$app->security->generateRandomString();
+        return $this->access_token;
     }
 
+    public static function findIdentityByAccessToken($token, $type = null)
+    {
+        $user = static::find()->where(['access_token' => $token, 'status' => self::STATUS_ACTIVE])->one();
+        if (!$user) {
+            return false;
+        }
+        if (strtotime($user->access_token_expired_at) < time()) {
+            throw new UnauthorizedHttpException('the access - token expired ', -1);
+        } else {
+            return $user;
+        }
+
+    }
     /**
      * Finds user by username
      *
@@ -186,4 +197,16 @@ class User extends ActiveRecord implements IdentityInterface
     {
         $this->password_reset_token = null;
     }
+
+    public function beforeSave($insert)
+    {
+        if (parent::beforeSave($insert)) {
+            if ($this->isNewRecord) {
+                $this->auth_key = Yii::$app->security->generateRandomString();
+            }
+            return true;
+        }
+        return false;
+    }
+
 }
diff --git a/console/migrations/m210708_141557_add_access_columns_to_user_table.php b/console/migrations/m210708_141557_add_access_columns_to_user_table.php
new file mode 100644
index 0000000..142cde5
--- /dev/null
+++ b/console/migrations/m210708_141557_add_access_columns_to_user_table.php
@@ -0,0 +1,21 @@
+<?php
+
+use yii\db\Migration;
+
+/**
+ * Handles adding columns to table `{{%user}}`.
+ */
+class m210708_141557_add_access_columns_to_user_table extends Migration
+{
+    public function safeUp()
+    {
+        $this->addColumn('user', 'access_token', $this->string());
+        $this->addColumn('user', 'access_token_expired_at', $this->dateTime());
+    }
+
+    public function safeDown()
+    {
+        $this->dropColumn('user', 'access_token');
+        $this->dropColumn('user', 'access_token_expired_at');
+    }
+}
diff --git a/frontend/config/main.php b/frontend/config/main.php
index 7b2da72..7899e29 100755
--- a/frontend/config/main.php
+++ b/frontend/config/main.php
@@ -15,6 +15,15 @@ return [
 
     'modules' => [
         'api' => [
+            'components' => [
+                'user' => [
+                    'identityClass' => 'frontend\modules\api\models\User',
+                    'enableAutoLogin' => true,
+                    'enableSession' => false,
+                    'class' => 'frontend\modules\api\models\User',
+                    //'identityCookie' => ['name' => '_identity-api', 'httpOnly' => true],
+                ],
+            ],
             'class' => 'frontend\modules\api\Api',
         ],
         'access' => [
@@ -32,6 +41,9 @@ return [
         'request' => [
             'csrfParam' => '_csrf-frontend',
             'baseUrl' => '',
+            'parsers' => [
+                'application/json' => 'yii\web\JsonParser',
+            ],
         ],
         'user' => [
             'identityClass' => 'common\models\User',
diff --git a/frontend/modules/api/controllers/UserController.php b/frontend/modules/api/controllers/UserController.php
new file mode 100644
index 0000000..7a6c2a4
--- /dev/null
+++ b/frontend/modules/api/controllers/UserController.php
@@ -0,0 +1,57 @@
+<?php
+
+
+namespace frontend\modules\api\controllers;
+
+use common\models\User;
+use frontend\modules\api\models\LoginForm;
+use Yii;
+use yii\filters\ContentNegotiator;
+use yii\rest\ActiveController;
+use yii\helpers\ArrayHelper;
+use yii\filters\auth\QueryParamAuth;
+use yii\web\BadRequestHttpException;
+use yii\web\Response;
+
+class UserController extends ActiveController
+{
+    public $modelClass = User::class;
+
+    public function behaviors()
+    {
+        return ArrayHelper::merge(parent::behaviors(), [
+            [
+                'class' => ContentNegotiator::class,
+                'formats' => [
+                    'application/json' => Response::FORMAT_JSON,
+                ],
+            ],
+            'authenticatior' => [
+                'class' => QueryParamAuth::class, //implement access token authentication
+                'except' => ['login'], // no need to verify the access token method, pay attention to distinguish between $noAclLogin
+            ]
+        ]);
+    }
+
+    public function actions()
+    {
+        $action = parent::actions(); // TODO: Change the autogenerated stub
+        unset($action['index']);
+        unset($action['create']);
+        unset($action['update']);
+        unset($action['delete']);
+    }
+
+
+    public function actionLogin()
+    {
+        $model = new LoginForm();
+        if ($model->load(Yii::$app->getRequest()->getBodyParams(), '') && $model->login()) {
+            return [
+                'access_token' => $model->login(),
+            ];
+        } else {
+            throw new BadRequestHttpException(json_encode($model->errors));
+        }
+    }
+}
diff --git a/frontend/modules/api/models/LoginForm.php b/frontend/modules/api/models/LoginForm.php
new file mode 100644
index 0000000..30a75ec
--- /dev/null
+++ b/frontend/modules/api/models/LoginForm.php
@@ -0,0 +1,70 @@
+<?php
+
+namespace frontend\modules\api\models;
+
+use common\models\User;
+use Yii;
+use yii\base\Model;
+
+/**
+ * Login form
+ */
+class LoginForm extends Model
+{
+    public $username;
+    public $password;
+    public $rememberMe = true;
+
+    private $_user;
+
+    Const EXPIRE_TIME = 604800; // token expiration time, valid for 7 days
+
+    /**
+     * {@inheritdoc}
+     */
+    public function rules()
+    {
+        return [
+            // username and password are both required
+            [['username', 'password'], 'required'],
+            // rememberMe must be a boolean value
+            ['rememberMe', 'boolean'],
+            // password is validated by validatePassword()
+            ['password', 'validatePassword'],
+        ];
+    }
+
+    public function validatePassword($attribute)
+    {
+        if (!$this->hasErrors()) {
+            $user = $this->getUser();
+            if (!$user || !$user->validatePassword($this->password)) {
+                $this->addError($attribute, 'Incorrect username or password.');
+            }
+        }
+    }
+
+    public function login()
+    {
+        if ($this->validate()) {
+            //return Yii::$app->user->login($this->getUser(), $this->rememberMe ? 3600 * 24 * 30 : 0);
+            if ($this->getUser()) {
+                $access_token = $this->_user->generateAccessToken();
+                $this->_user->access_token_expired_at = date('Y-m-d', time() + static::EXPIRE_TIME);
+                $this->_user->save();
+                Yii::$app->user->login($this->_user, static::EXPIRE_TIME);
+                return $access_token;
+            }
+        }
+        return false;
+    }
+
+    protected function getUser()
+    {
+        if ($this->_user === null) {
+            $this->_user = User::findByUsername($this->username);
+        }
+
+        return $this->_user;
+    }
+}