How to validate Route Parameters in Laravel 5?

Question

As you know Laravel 5 changes the way you call the validator, the old way is calling the validator facade, but now there is the ValidatesRequests

Answer 1

If you plan to do this directly in your controller method you can do something like:

        public function getUser(Request $request)
    {
        $request->merge(['id' => $request->route('id')]);
        $request->validate([
            'id' => [
                'required',
                'exists:users,id'
            ]
        ]);
    }

To do this in a custom FormRequest class, add the following:

    protected function prepareForValidation() 
    {
        $this->merge(['id' => $this->route('id')]);
    }

And in your rules method:

    public function rules()
    {
        return [
            'id' => [
                'required',
                'exists:users,id'
            ]
        ];
    }