如何在 Laravel 5.5 中为选定的请求类设置自定义响应
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How to set custom response for selected Request class in Laravel 5.5
提问by eithed
I'm trying to use Laravel validation to generate custom error message, however I'm unable to find the function I should be overriding.
我正在尝试使用 Laravel 验证来生成自定义错误消息，但是我无法找到应该覆盖的函数。
Route: POST:/entries/uses EntryController@storewhich uses EntryStoreRequestto perform validation.
Route：POST:/entries/使用EntryController@storewhich用于EntryStoreRequest执行验证。
EntryStoreRequest
条目存储请求
namespace App\Api\V1\Requests;
class EntryStoreRequest extends ApiRequest
{
/**
* Get the validation rules that apply to the request.
*
* @return array
*/
public function rules()
{
return [
'message' => [
'string',
'required',
'max:65535',
],
'code' => [
'string',
'max:255',
'nullable'
],
'file' => [
'string',
'max:255',
'nullable'
],
'line' => [
'string',
'max:255',
'nullable'
],
'stack' => [
'string',
'max:65535',
'nullable'
]
];
}
}
ApiRequest
请求
namespace App\Api\V1\Requests;
use Illuminate\Foundation\Http\FormRequest;
abstract class ApiRequest extends FormRequest
{
/**
* Determine if the user is authorized to make this request.
*
* @return bool
*/
public function authorize()
{
return true;
}
}
The errors are currently returned as:
错误当前返回为：
{
"message": "The given data was invalid.",
"errors": {
"message": [
"The message field is required."
]
}
}
I want to format them as:
我想将它们格式化为：
{
"data": [],
"meta: {
"message": "The given data was invalid.",
"errors": {
"message": [
"The message field is required."
]
}
}
How can I achieve this within the ApiRequestclass?
我怎样才能在ApiRequest课堂上做到这一点？
回答by Marcin Nabia?ek
If you want to customize validation response only for selected Request class, you need to add failedValidation()message to this class:
如果您只想为选定的请求类自定义验证响应，则需要failedValidation()向此类添加消息：
protected function failedValidation(\Illuminate\Contracts\Validation\Validator $validator)
{
$response = new JsonResponse(['data' => [],
'meta' => [
'message' => 'The given data is invalid',
'errors' => $validator->errors()
]], 422);
throw new \Illuminate\Validation\ValidationException($validator, $response);
}
This way you don't need to change anything in Handler and have this custom response only for this single class.
通过这种方式，您无需在 Handler 中更改任何内容，并且仅为该单个类提供此自定义响应。
And if you want to change format globally for all responses you should add to app\Exceptions\Handler.phpfile the following method:
如果您想全局更改所有响应的格式，您应该将app\Exceptions\Handler.php以下方法添加到文件中：
protected function invalidJson($request, ValidationException $exception)
{
return response()->json([
'data' => [],
'meta' => [
'message' => 'The given data is invalid',
'errors' => $exception->errors()
]
], $exception->status);
}
You can read about this also in Upgrade guidein Exception Formatsection
您也可以在异常格式部分的升级指南中阅读有关此内容的信息
