ldc-crm/app/Http/Controllers/Api/V2/AnswerController.php

<?php

namespace App\Http\Controllers\Api\V2;

use App\Http\Controllers\Controller;
use App\Http\Requests\Api\V2\StoreCustomerAnswers;
use App\Models\Answer;
use App\Models\Customer;
use App\Models\Service;
use Illuminate\Http\JsonResponse;

class AnswerController extends Controller
{
    /**
     * Store the customer answers.
     *
     * @param \App\Http\Requests\Api\V2\StoreCustomerAnswers $request
     * @param \App\Models\Service                            $service
     * @param \App\Models\Customer                           $customer
     * @return \Illuminate\Http\JsonResponse
     */
    public function storeCustomerAnswers(
        StoreCustomerAnswers $request,
        Service $service,
        Customer $customer
    ): JsonResponse {
        // * Make sure we are accessing a customer that belongs to our service.
        $this->authorize('customerBelongsToService', $customer);

        $existingAnswerIds = $customer->getAnswers($service)->pluck('id');
        $answersID         = Answer::query()->whereIn('id', $request->answers)->pluck('id');
        $customer->answers()->sync($answersID->merge($existingAnswerIds));
        return response()->json();
    }
}