The details of DownloadFileRequiringHeadersAndCookies are here. Var cookieContainer = new CookieContainer() ĬookieContainer.Add(new Cookie(cookie.Name, cookie.Value, cookie.Path, cookie.Domain)) Populate the Cookie Container like this: private CookieContainer BuildCookieContainer(IEnumerable cookies) NEED THIS TIMEOUT TO KEEP THE BROWSER OPEN WHILE THE FILE IS DOWNLOADING!Īwait page.WaitForTimeoutAsync(1000 * configs.DownloadDurationEstimateInSeconds) Var cookieContainer = BuildCookieContainer(pageCookies) Īwait DownloadFileRequiringHeadersAndCookies(getUrl, fullPath, cookieContainer, cancellationToken) Īwait page.ClickAsync('button') Var pageCookies = await page.GetCookiesAsync() Add the cookies to a container for the upcoming Download GET request If (contentType.Contains('application/vnd.ms-excel')) Handle the response with the Excel download Page.Response += async (sender, responseCreatedEventArgs) => Handle multiple responses and process the Download await using (var browser = await Puppeteer.LaunchAsync(new LaunchOptions ))Īwait using (var page = await browser.NewPageAsync()) Once I had that particular response, I had to attach headers and cookies for the remote server to send the downloadable data in the response. In essence, before the button click, I had to process multiple responses and handle a single response with the download. I needed both Headers and Cookies set before the download would start. To wait for all downloads to complete with Puppeteer using request interception, you can use the request event to intercept all network requests made by the browser and track when they are finished.I had a more difficult variation of this, using Puppeteer Sharp. Finally, we close the browser instance.īy using the download event, we can wait for all downloads to complete with Puppeteer in a reliable and efficient way. We then navigate to the page that initiates the download and wait for all downloads to complete using the waitForDownload method. We add a listener to the download event to log when a download is completed. We then set the download behavior for the page to allow downloads and specify the download path. In this code, we first create a new browser instance using Puppeteer and a new page. send ( 'tDownloadBehavior', ) await page. Const puppeteer = require ( 'puppeteer' ) const browser = await puppeteer.

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