Yii2 REST: How to customize Error response? - rest

Question

For first I use this solution - http://www.yiiframework.com/doc-2.0/guide-rest-error-handling.html
But, I want to customize two types error.
When model validation wrong.
When something wrong (Exceptiin)
If model validation wrong i get response, like that:
{
"success": false,
"data": [
{
"field": "country_id",
"message": "Country Id cannot be blank."
},
{
"field": "currency_id",
"message": "Currency Id cannot be blank."
},
{
"field": "originator_id",
"message": "Originator Id cannot be blank."
}
]
}
But i want like that:
{
"success": false,
"data": [
"errors": [
{
"field": "country_id",
"message": "Country Id cannot be blank."
},
{
"field": "currency_id",
"message": "Currency Id cannot be blank."
},
{
"field": "originator_id",
"message": "Originator Id cannot be blank."
}
]
]
}
Second type error i get
{
"success": false,
"data": {
"name": "Exception",
"message": "Invalid request arguments",
"code": 0,
"type": "yii\\base\\InvalidParamException",
]
}
}
But i Want:
{
"success": false,
"data": {
"errors" : 1, <----------------
"name": "Exception",
"message": "Invalid request arguments",
"code": 0,
"type": "yii\\base\\InvalidParamException",
]
}
}
Because in anyway user get 200 Response and they don know about error or mistake.

Answer 1

If you are using default yii/rest/Controller model with error send 422.
Use yii/rest/Controller or yii/rest/ActiveController or extend it.
Or use own Serializer
http://www.yiiframework.com/doc-2.0/yii-rest-serializer.html

Answer 2

Maybe this could guide you, how to change error format:
class JsonErrors
{
public static function validation($model)
{
Yii::$app->response->statusCode = 422;
//Yii::$app->response->format = 'json';
$errorArray = [];
foreach($model->getErrors() as $key => $val) {
$errorArray[] = [
'field' => $key,
'message' => implode(', ', $val) // $val is array (can contain multiple error messages)
];
}
return $errorArray;
}
}
// in controller:
return JsonErrors::validation($model);
// config:
'on beforeSend' => function ($event) {
$response = $event->sender;
if($response->statusCode == 422)
{
$details = $response->data;
if(isset($response->data["message"]) && is_string($response->data["message"])) $details = $response->data["message"];
if(isset($response->data["message"]) && is_array($response->data["message"])) $details = json_decode($response->data['message']);
$response->data = [
'message' => 'Please correct your data with correct values.',
'details' => $details
];
}
}