Using custom error message with AJAX response in Laravel - ajax

Question

How can I use custom error messages in a json response? I'm using Ajax to validate a login form in frontend and I've already manage how to display the Validator errors, but I can't figure out how I can retrieve a custom error message.
This is the controller:
public function LoginValid(Request $request){
$validator = Validator::make($request->all(), [
'email' => ['required', 'string', 'email' ],
'password' => ['required', 'string', 'max:255'],
]);
if($validator->passes()){
$user = User::where('email', $request->email)->first();
if ($user &&
Hash::check($request->password, $user->password)) {
$credentials = $request->only('email', 'password');
if (Auth::attempt($credentials)) {
return redirect()->intended('dashboard');
}else{
return response()->json('should be any custom message here');
}
}
}else{
return response()->json(['error'=>$validator->errors()->all()]);
}
}
And here's the Ajax:
$(document).ready(function() {
$("#btn-login").click(function(e) {
e.preventDefault();
var _token = $("input[name='_token']").val();
var email = $("input[name='email']").val();
var password = $("input[name='password']").val();
$.ajax({
url: "{{ route('login-valid') }}",
type: 'POST',
data: { _token: _token, email: email, password:password },
success: function(data) {
if ($.isEmptyObject(data.error)) {
window.location.href = 'dashboard';
} else {
printErrorMsg(data.error);
}
}
});
});
function printErrorMsg(msg) {
$(".print-error-msg").find("ul").html('');
$(".print-error-msg").css('display', 'block');
$.each(msg, function(key, value) {
$(".print-error-msg").find("ul").append('<li>' + value + '</li>');
});
}
});

Answer 1

you can customize validation messages in this way. I am using your code for an example.
$validator = Validator::make($request->all(), [
'email' => ['required', 'string', 'email' ],
'password' => ['required', 'string', 'max:255'],
], [
'email.required' => 'email is required',
'email.string' => 'email should be valid',
'email.email' => 'email should be in proper format'
.
.
.
.
and so on
]);
above code will overwrite the laravel default messages.