Puppeteer wait for ajax. LaunchAsync(new LaunchOpt...

Puppeteer wait for ajax. LaunchAsync(new LaunchOptions { Headless = true }); var page = await browser. Detecting, solving, and handling captcha challenges (including integration with third-party services). 3, last published: 2 years ago. Puppeteer runs in the headless (no visible UI) by default In this guide, we discuss the waitForNavigation function in Puppeteer, a method for ensuring precise navigation synchronization during web automation. I don't know if it's what you exactly want, but it seems to me page. js Puppeteer library, providing a high-level API to control headless Chrome or Chromium browsers. cli Convenience function to wait for navigation to complete after clicking on an element. Waiting for Non-Actionable Elements: Playwright locators auto-wait for elements to be ready for actions like clicking or Learn to wait for pages and elements to load with Puppeteer. Nov 6, 2025 · Waiting for multiple selectors in Puppeteer is critical for handling dynamic content with uncertain outcomes (e. ---This video is based on the ques I open a website, then wait for all redirects to be done. exe 傳參數執行各項任務，最近發現更方便的選擇。 Puppeteer Sharp 是 Github 上的開源專案，作者 Dar. , a particular URL has been called to happen) after… Step #4. I've tried to put a setTimeout in an evaluate function but it seems to be simply ignored console. Latest version: 2. In puppeteer I would like to wait a defined time before going to the next line of code. Net I have a need to wait until all XHR / Ajax requests have finished so that the page is in a truly "re ¥ timeout: Maximum wait time in milliseconds, defaults to 30 seconds, pass 0 to disable the timeout. waitForSelector(cssSelector);，这在我目前的情况下是行不通的，因为Ajax调用的成功不会向页面添加任何新元素。 One of Puppeteer's essential features is the ability to wait for specific elements to appear on a page using the waitForSelector function. I know that when clicking on the button, a request is made, but it doesn't refresh the page (if I couldn't get it, waiting for the page to load until the end), it's done with ajax (the page is made in asp. evaluate(ahref). One of Puppeteer's essential features is the ability to wait for specific elements to appear on a page using the waitForSelector function. Basic Usage Take screenshots using var browserFetcher = new BrowserFetcher(); await browserFetcher. JS Puppeteer API. @MikeHill Puppeteer looks like the way to go, thanks for the suggestion! It can wait for the page to load, and network idle, plus you get full control over the PDF layout. Learn how to effectively wait for AJAX requests to complete in `puppeteer-sharp` with our step-by-step guide. In this guide, we discuss the waitForNavigation function in Puppeteer, a method for ensuring precise navigation synchronization during web automation. class_name) 文章浏览阅读4. Still using puppeteer here, puppeteer-extra actually, with puppeteer-extra-plugin-stealth to help dodge the anti-bot bans. How to wait for specific AJAX request in Puppeteer crawler Asked 2 years, 1 month ago Modified 1 year, 8 months ago Viewed 326 times How do you wait for a selector, but only for a specific time period in puppeteer? Asked 6 years, 6 months ago Modified 2 years, 1 month ago Viewed 31k times How can I wait for network idle after click on an element in puppeteer? const browser = await puppeteer. Generally speaking, for scripts specific to one page, this is the main tool to wait for the state you want, whether you're extracting data or clicking something. catch(()=>{}); instead of await page. I've tried something like this, but it doesn't seem to wait: await page. wait request to be done 3. log('before Puppeteer's smart navigation wait strategy boosts performance by effectively synchronizing scripts with the loading of web pages. i also tried page. cli I wonder if there's a similar way as in Selenium to wait for text to appear for a particular element. Adding to this answer, Puppeteer also offers to wait for a specific response to resolve without necessarily having to promisify page. waitForSelector works perfectly fine for your case. NET port of the official Node. Maybe you don't have to wait until a certain number of responses have been intercepted but wait until the results from those AJAX calls have rendered something on the page (wait for visual results). waitForFunction to wait for a specific tag with a specific label and returning instead its value. net) 等待页面跳转 在 Puppeteer 实现 web 自动测试 一文中提到过，点击按钮触发页面跳转时，最佳的写法是这样： 这样写法，等于让 click 动作等待页面跳转后，才一起 resolve，不然 click 很快完成，可能在当前页面里继续 wait，而不是在等待新的页面跳转。 等待 ajax I wonder if there's a similar way as in Selenium to wait for text to appear for a particular element. , AJAX results or "no records" messages). waitForSelector(selector), where the selector is the information that the result of the call render on screen. Playwright in . Here are the sample Puppeteer Node. One possible scenario would be using . This will pause execution until a specific element shows up on the page and indicates that the page has fully loaded. click on btn ( to make ajax request on website ) 2. waitForResponse() or page. , visible and ready for interaction), but you don't have the same level of granularity over what specific condition you're waiting for. 26 I have Puppeteer controlling a website with a lookup form that can either return a result or a "No records found" message. waitForFunction to build a custom waitForAnySelector helper, you can create robust automation that adapts to the page’s behavior without relying on fragile fixed delays. Start using puppeteer-extra-plugin-click-and-wait in your project by running `npm i puppeteer-extra-plugin-click-and-wait`. waitForNavigation和page. Discover how to efficiently wait for Ajax calls to complete after clicking a button in Puppeteer for seamless web crawling. Timeouts can be annoying, even more so if you are using Puppeteer. laun If you want to wait for data to be displayed after an AJAX call is made, I'll point you towards my answer on this very topic from another thread: how to handle elements that load after ajax request in puppeteer Hopefully this helps! 12 You can use await page. waitForSelector方法。 When working with Puppeteer for web automation and scraping, one of the most crucial aspects is Tagged with puppeteer, webscraping, webdev. by Raian 在我的工具箱，Headless Chrome 已取代 PhatomJS 成為擷取網頁內容、自動測試及網頁擷圖/轉 PDF 的首選。 之前我都是自己寫程式呼叫 chrome. by Raian Situation: In Puppeteer, one sometimes needs to wait for a particular HXR request (e. In that case, you would be doing a page. launch({headless: false}); await page. e. waitForRequest() methods to wait for specific network requests to complete. In this comprehensive guide, we'll delve deep into Puppeteer's waitForSelector and provide a detailed explanation of how to use it. how to wait request to be done before clicking on btn in puppeteer-sharp ? what I am trying to do is: 1. There's a plugin that waits for xhr to load https://github. js and I am now using Microsoft. May 30, 2020 · In puppeteer : wait for ajax call after navigation the accepted answer uses await page. Extracting and processing data from AJAX responses. coun 我有一个页面，它在页面加载后执行Ajax调用，我需要木偶师等待该调用的完成。 在 puppeteer : wait for ajax call after navigation 中，可接受的答案使用 await page. Learn the importance of waiting for content and events before running interaction or extraction code, as well as the best practices for doing so. Does anyone have any tips for how to get this to work with headless Chrome, ideally without having to use an additional program such as Puppeteer or Selenium? Puppeteer Sharp - Examples Puppeteer Sharp is a . 什么是同步请求： (false) 同步请求即是当前发出请求后，浏览器什么都不能做，必须得等到请求完成返回数据之后，才会执行后续的代码，相当于是排队，前一个人办理完自己的事务，下一个人才能接着办。也就是说，当JS代码加载到 在 puppeteer 中，我想等待一个定义的时间，然后再转到下一行代码。 我试图将 setTimeout 放在评估函数中，但它似乎被简单地忽略了 {代码} 这段代码不等待，只写 等待前 和 等待后 你知道怎么做吗？ 原文由 Pi The key content apparently is inserted into the page via an AJAX call, and headless Chrome doesn't seem to waiting long enough for that call to be processed. Handling AJAX requests in Puppeteer involves using the page. So in your case I would: Enter your search text into the search bar. How can I wait for network idle after click on an element in puppeteer? const browser = await puppeteer. on("request", ), although it's good to see multiple approaches. setDefaultTimeout () method. com/jtassin/pending-xhr-puppeteer Is this a reliable method to wait for all ajax content to load? Would it work with puppeteer-cluster? Learn to wait for pages and elements to load with Puppeteer. By default, the timeout for the wait is 30 seconds but you can set it to any timeout you wish. I have previously used Puppeteer in Node. js scripts that will scroll down to the bottom of the page and wait a few seconds before closing the browser. Nov 28, 2025 · Waiting for AJAX requests to complete in Puppeteer. waitForSelector(cssSelector); to ask Puppeteer to wait for any element to be displayed in the UI before continuing on to further steps in your script. If at the moment of calling the method the selector already exists, the method will return immediately. Here I summarized how to use the Puppeteer times. DownloadAsync(); var browser = await Puppeteer. Then I capture a captcha image, and send it via nodejs to a user. Puppeteer Method 1: use scrollIntoView with selector (. catch(()=>{}); how can i do it ? Puppeteer provides many advanced features for waiting mechanisms, and the waitUntil option is one of the most powerful ways in Puppeteer; it waits based on the event triggered by the browser rather than element- or time-based wait. In this article, we’ll explore both the fundamental details and advanced configuration of waitForSelector in Puppeteer. NET port of the popular Node. There are 3 other projects in the npm registry using puppeteer-extra-plugin-click-and-wait. Then I recive the typed captcha: const browser = await puppeteer. 2k次，点赞5次，收藏8次。本文介绍如何使用Puppeteer将网页转换为PDF，并解决过程中遇到的等待页面加载问题，包括使用page. all([ page. If the selector doesn't appear after the timeout milliseconds of waiting, the function will throw. timeout: Maximum wait time in milliseconds, defaults to 30 seconds, pass 0 to disable the timeout. goto(url, {waitUntil: 'networkidle'}); await page. Scraping is done through an OpenVPN tunnel to a residential CM account that can change MAC and restart to get a new IP on demand, alternative to paying for some service like was mentioned. Wait for XHR response via Puppeteer Okay, now comes the main part – how do we make Puppeteer wait for the ajax response? page. Jul 3, 2025 · Learn proven ways to wait for page load in Puppeteer. From waiting for a single element to appear on a web page to modifying the timeout and handling multiple selectors, we’ll discuss all the details. Ensure smooth interactions on your web page aut puppeteer 等待ajax js 等待异步请求执行完成，【ajax同步、异步】1. waitForSelector('. 3. What is Puppeteer Wait Until? You can wait for the page to load in Puppeteer by using the waitForSelector method. waitForSelector(cssSelector); which doesn't work in my current case since the success of the Ajax call doesn't add any new elements to the page. Puppeteer is a JavaScript library which provides a high-level API to control Chrome or Firefox over the DevTools Protocol or WebDriver BiDi. Avoid common errors using waitForSelector, waitForNetworkIdle, and timeouts for reliable web scraping. waitForResponse puppeteer function will do all the heavy-lifting, we just need to pass a proper callback into it, which will filter and catch the required response. Learn effective wait strategies in Puppeteer to enhance the reliability and speed of your web automation scripts. According to the docs Here the example is: const [response] = await Promise. 我正在从网页创建 PDF。 我正在处理的应用程序是单页应用程序。 我在 [链接] 上尝试了很多选项和建议 但它不起作用 {代码} 我想要的是在页面完全加载后立即生成 PDF 报告。 我不想写任何类型的延迟，即 await Learn effective click operations with Puppeteer, tackling complex elements, dynamic content, and troubleshooting common issues in web automation. By leveraging page. . How can I tell which was returned? waitForSelector seems to wait for only one at a time, while waitForNavigation doesn't seem to work because it is returned using Ajax. If you're waiting for a load on a specific page, identify a selector that indicates the state you want to wait for. Error: Navigation Timeout Exceeded: 10000ms exceeded it sounds like puppeteer does not catch response status 200 of async ajax requests. The default value can be changed by using the Page. Waits for the provided function, pageFunction, to return a truthy value when evaluated in the page's context. In contrast, locator actions will auto-wait for an element to become actionable (i. Wait for the selector to appear in page. coun How can I wait for ajax completed after click button in puppeteer crawler? [closed] Asked 5 years, 3 months ago Modified 5 years, 3 months ago Viewed 918 times Learn how to implement and use PuppeteerSharp (Puppeteer in C#) for your web scraping purposes: JavaScript rendering and avoid getting blocked. Master timing strategies for reliable web automation and scraping. waitForNavigation(), // The promise resolves What are the options for handling timeouts and delays in Puppeteer-Sharp? Puppeteer-Sharp is a . Master AJAX request handling in Puppeteer with monitoring, intercepting, and waiting techniques for dynamic content scraping. click on submi In this article, we explored four commonly-used methods: load, domcontentloaded, networkidle0, and networkidle2 to determine when the page is ready for interaction. g. I am having trouble getting puppeteer to wait for navigation. Learn how to optimize web scraping and automation with Puppeteer. NewPageAsync(); The app is tested by puppeteer updating an image source with a nonvalid URL, which results in a 404 response from the server, the image update is happening on each letter type which causes a bunch of 404 happening quick. nd5zs, nep5p, 9bof, ujukn, xe8u, hjlf, pdyv5, vfv4b, yef9, qpw8l,