How to custom message validator with Laravel - laravel

Question

I am making an API that allows users to input some information like email, phone number, address ...
But if users input wrong phone nums, the validate error is
{
"message": "The given data was invalid.",
"errors": {
"phone": [
"The phone has already been taken."
]
}
}
As you can see the message returns is
"message": "The given data was invalid."
. But the message I expect is The phone has already been taken. How can I custom the message as I expect? With an email validator, the message is the same but the key is email. The message I expect is
"message": "The ... has already been taken. "
I'm using laravel 8 and validate in Request
Example a function rules()
public function rules()
{
return [
'profile_img' => 'nullable|image|mimes:jpeg,png,jpg,gif,svg|max:' . config('filesystems.max_upload_size'),
'name' => 'nullable|min:3',
'phone' => [
'required',
'numeric',
new UpdatePhoneRule(User::TYPE_CLIENT),
],
'email' => [
'nullable',
'email',
new UpdateEmailRule(User::TYPE_CLIENT),
]
];
}
Thanks

Answer 1

On the Request php file you can use this function failedValidation() and pass in a Validator. This way you can alter or customize the response if validation fails.
use Illuminate\Http\Exceptions\HttpResponseException;
use Illuminate\Contracts\Validation\Validator;
protected function failedValidation(Validator $validator) {
throw new HttpResponseException(response()->json(['status'=>'failed',
'message'=>'unprocessable entity',
'errors'=>$validator->errors()->all()], 422));
}
Sample response is here..
{
"status": "failed",
"message": "unprocessable entity",
"errors": [
"The name must be a string.",
"One or more users is required"
]
}
As you can see the message is changed now you can do whatever you want on the response message.
Also you can try this
$validator->errors()->messages()[keyname]

Answer 2

You have to use unique in your validation
$this->validate(
$request,
[
'email' => 'required|unique:your_model_names',
'phone' => 'required|unique:your_model_names'
],
[
'email.required' => 'Please Provide Your Email Address For Better Communication, Thank You.',
'email.unique' => 'Sorry, This Email Address Is Already Used By Another User. Please Try With Different One, Thank You.',
'phone.required' => 'Your custom message',
'phone.unique' => 'The phone has already been taken'
]
);

Answer 3

You can do this in the lang file: resources/lang/en/validation.php. If all you want to do is change, for example, the message for a unique rule on an email field across the entire app you can do:
/*
|--------------------------------------------------------------------------
| Custom Validation Language Lines
|--------------------------------------------------------------------------
|
| Here you may specify custom validation messages for attributes using the
| convention "attribute.rule" to name the lines. This makes it quick to
| specify a specific custom language line for a given attribute rule.
|
*/
'custom' => [
'attribute-name' => [
'rule-name' => 'custom-message',
],
'email' => [
'unique' => 'This email is already registered...etc',
]
],