[FIXED] Laravel Validation Error customise format of the Response

Issue

I am working with L5 Form Requests and don't I just love Taylor! Well, I am doing some AJAX requests and I still want to retain my form requests. The problem is that in the case of a validation error the Validator just returns a 422 error response and flashes the errors, but my AJAX frontend expects a very specific format of response from server whether validation is successful or not.

I want to format the response on Validation errors to something like this

return json_encode(['Result'=>'ERROR','Message'=>'//i get the errors..no problem//']);

My problem is how to format the response for the form requests, especially when this is not global but done on specific form requests.

I have googled and yet not seen very helpful info. Tried this method too after digging into the Validator class.

// added this function to my Form Request (after rules())
    public function failedValidation(Validator $validator)
{
    return ['Result'=>'Error'];
}

Still no success.

Solution

Found the answer here: Laravel 5 custom validation redirection
All you need to do is to add a response() method in your form request and it will override the default response. In your response() you can redirect in whatever fashion you want.

public function response(array $errors)
{
    // Optionally, send a custom response on authorize failure 
    // (default is to just redirect to initial page with errors)
    // 
    // Can return a response, a view, a redirect, or whatever els
    return response()->json(['Result'=>'ERROR','Message'=>implode('<br/>',array_flatten($errors))]); // i wanted the Message to be a string
}

UPDATE on L5.5+
This error and the accepted solution was for L5.4. For L5.5, use Ragas' answer above (failedValidation() approach)

Answered By - gthuo