How to return errors in Laravel Custom Request to Ajax

Question

I made custom request as following.

class CustomRequest extends FormRequest
{
    public function authorize()
    {
        return true;
    }
    public function rules()
    {
      $rule['name']='required';
      $rule['email'] = 'required|email';
      return $rule;
    }
}

How can I return validation errors in ajax? When I didn't use custom request, I returned errors like this.

public function store(Request $request)
{
   $validation = Validator::make($request->all(), [
      'name'=>'required',
      'email'=>'required|email'
   ]
   if($validation->fails())
   {
      return response()->json([$errors=>$validation->errors()]);
   }
   return response()->json(['status'=>'success']);
}

So here instead of Request, if I use CustomRequest then how can we catch errors?

Another thing. In custom request rule, how can we get request input values?

   public function rules()
    {
      $rule['name']='required';
      if($this->input('phone')) {
        $rule['phone'] = 'integer';
      }
      $rule['email'] = 'required|email';
      return $rule;
    }

$this->input('phone') Is this right? Hope to give me answer to my 2 questions.

Andy Song · Accepted Answer · 2020-04-09 08:27:38Z

1

the error will be either in your error call back function or catch callback depends on how you make ajax call.

eg.

$.ajax({
        url: "/test",
        type: "post",
        data: {foo:'test'} ,
        success: function (response) {
            console.log(response);
        },
        error: function(jqXHR, textStatus, errorThrown) {
            var data = jqXHR.responseJSON;
            console.log(data.errors);// this will be the error bag.
        }

for FormRequest I think your code is not correct

public function rules()
{
    return [
        'title' => 'required',
        'body' => 'required',
    ];
}

This will do the validation. You do not really need to access the input value as Laravel does it for you. But for some reason, if you really want it you can always use the global helper function request()->input('title');

edited Apr 9, 2020 at 8:27

answered Apr 9, 2020 at 8:21

Andy Song

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12 Comments

LoveCoding Over a year ago

well, it returns 422 error (Unprocessable Entity) And I think Form validation rule is correct. Because it's same return values.($rule is array), With your simple return array, we can't validate according to input value.

Andy Song Over a year ago

it's 422, because something is wrong, there is no problem with it. you can still access the error message from it. @lovecoding

Andy Song Over a year ago

@lovecoding we can validate input, just $validated = $request->validated(); this will give the validated input data.

Andy Song Over a year ago

@lovecoding the only thing is before it was store(Request $request) now it should be store(CustomRequest $request)

Andy Song Over a year ago

status 422 is from rfc4918

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