How to avoid code duplication when validating data in store and update methods?

Question

Laravel

If the validation logic were absolutely identical, it would seem that everything is simple. Can be moved to the rules and FormRequest method. But what if the check is slightly different?
store:

request()->validate([
            'name' => 'required',
            'poster' => 'image|mimes:jpeg,png,jpg,gif|max:2048',
            'name_en' => [
                'required',
                Rule::unique('authors', 'name_en'),
                new AuthorUrl
            ]
        ]);

update:

request()->validate([
            'name' => 'required',
            'poster' => 'image|mimes:jpeg,png,jpg,gif|max:2048',
            'name_en' => [
                'required',
                Rule::unique('authors', 'name_en')->ignore($author->id),
                new AuthorUrl
            ]
        ]);

Answer 1

In the method rules(), you can adjust the list of rules depending on some conditions - the same http verb.