New pages are only opened when there is enough free CPU and memory available, tab) for each Request object to crawlĪnd then calls the function provided by user as the PuppeteerCrawlerOptions.requestHandler option. PuppeteerCrawler opens a new Chrome page (i.e. The crawler finishes when there are no more Request objects to crawl. This ensures that a single URL is not crawled multiple times. To RequestQueue before it starts their processing. The instance first processes URLs from the RequestList and automatically enqueues all of them If both PuppeteerCrawlerOptions.requestList and PuppeteerCrawlerOptions.requestQueue are used,
Or PuppeteerCrawlerOptions.requestQueue constructor options, respectively. RequestList or RequestQueue instances provided by the PuppeteerCrawlerOptions.requestList The source URLs are represented using Request objects that are fed from Which downloads the pages using raw HTTP requests and is about 10x faster. If the target website doesn’t need JavaScript, consider using CheerioCrawler, It is useful for crawling of websites that require to execute JavaScript. Since PuppeteerCrawler uses headless Chrome to download web pages and extract data,
Or from a dynamic queue of URLs enabling recursive crawling of websites. The URLs to crawl are fed either from a static list of URLs Provides a simple framework for parallel crawling of web pages
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