pzsprog

const URL = 'https://rickandmortyapi.com/api/episode';

async function recursion(url) {
  const response = await fetch(url);
  const data = await response.json();
  if (data && data.info && data.info.next) {
    let d2 = await recursion(data.info.next);
   return await [...data.results, ...d2];
  }
  return [...data.results];

pzsprog

<?php

// https://www.upbeatproductions.com/blog/cors-pre-flight-requests-and-headers-symfony-httpkernel-component

namespace App\EventListener;

use Symfony\Component\EventDispatcher\EventSubscriberInterface;
use Symfony\Component\HttpKernel\KernelEvents;
use Symfony\Component\HttpKernel\Event\RequestEvent;
use Symfony\Component\HttpKernel\Event\ResponseEvent;