Function launch

examples/redis-cache.js:6–14

(persistCache)

const cache = new RedisCache({ host: '127.0.0.1', port: 6379 });

function launch(persistCache) {
  return HCCrawler.launch({
    onSuccess: result => {
      console.log(`Requested ${result.options.url}.`);
    },
    cache,
    persistCache, // Cache won't be cleared when closing the crawler if set true
  });
}

(async () => {
  const crawler1 = await launch(true); // Launch the crawler with persisting cache