Input Validation

$validator = Validator::make($request->json(), [
    'name'     => 'required|string|min:2|max:100',
    'email'    => 'required|email',
    'age'      => 'required|numeric|min:18|max:120',
    'role'     => 'required|in:admin,user,editor',
    'tags'     => 'array',
]);

if ($validator->fails()) {
    return Response::json(['errors' => $validator->errors()], 422);
}