Wait for File Download using FluentWait in Selenium

In this video, I have explained how to Wait for File Download using FluentWait in Selenium
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[@naveenautomationlabs]

public class FileDownload {
public static void main(String[] args) {
WebDriver driver = new ChromeDriver();
driver.get("get.jenkins.io/windows-stable/2.426.1/jenkins.msi");
String downloadPath = "/Users/naveenautomationlabs/Downloads";
String fileName = "jenkins.msi";
File file = new File(downloadPath, fileName);
FluentWait wait = new FluentWait(file)
.withTimeout(Duration.ofMinutes(5))
.pollingEvery(Duration.ofSeconds(2))
.ignoring(Exception.class).withMessage("file is not downloaded");
try {
boolean isDownloaded = wait.until(f -> f.exists() && f.canRead());
if (isDownloaded) {
System.out.println("file is completely 100% downloaded");
}
} catch (TimeoutException e) {
System.out.println("file is not completely downloaded");
}
}
}

[@Little-Impact]

You are a Champion. Thanks a lot bro for sharing your knowledge.

[@siddabattuniharinadh1371]

Clean & Clear cut explanation.
Thank you.

[@laxmikambar7610]

Thanks Naveen for the information

[@arunkumarpandey4989]

Thanku so much Naveen, i just implemented this logic in my code.

[@nityaranjan6714]

Very helpful..

[@swapnilkhute]

Always something unique 👍🏻

[@bihari1422]

I have faced this scenario earlier and used the count method to identify if the file is downloaded or not (It was working fine). Going forward I will use this fluent wait concept.(Was not aware that it can accept any type as parameter).
Thank You !!

[@vinayakbhandurge6290]

Bhari 👍

[@SameerKumar-yu1xi]

Genius 😎

[@shoaibsheikh863]

Hats off

[@karthickrajpattabi]

G.O.A.T

[@dheerajsingh6568]

Awesome Naveen, I have some doubt. How to handle the delete from download section and then verify because we can't delete it again and again manually as it will cost time ?

[@user-cx2hw4pe9z]

Thank you @Naveen! How can a page refreshed mechanism be added to the code? I need to click on a download link which may not be present when i land on the page so i need to refresh the page like 3x before quiting if element is not clickable.

[@venkychowdary5432]

Hi Naveen thanks for this video. May I know how f becomes file object? With our creation File object..

[@naveenautomationlabs]

because of generics type is File in FluentWait

[@zaigamalimerchant4733]

Hi Naveen, Will this same scenario work for the headless Chrome browser?

[@yuvraj4870]

Thanks Naveen, can you also please explain how to do this without lambda expressions ?

[@lokapavanikoduru9966]

To answwer the interview question? which version of webdriver you are using in your project?

[@harshakalal529]

Did you delete your selenium playlist videos -the basics one?

[@satheeskumar9343]

Hi Naveen, What will happen if we ignore the timeout exception?

[@naveenautomationlabs]

It will anyhow throw the timeout exception after the total timeout.

[@balakumaran6227]

when we try to download any file in incognito mode.. it asking for saveas popup... how to fix that .. even we set the chrome options of downloads path it is not working.. can you help me on this.. i tried in both selenium and playwright it give same result.. is this issue with recent update of chrome driver. am using 119 chrome

[@naveenautomationlabs]

ok, will check this.

[@Little-Impact]

Add the following lines of code:
Map prefs = new HashMap();
prefs.put("safebrowsing.enabled", true);
ChromeOptions options = new ChromeOptions().setExperimentalOption("prefs", prefs);

[@ravicommando1]

Hi Naveen, can you please share the code here pls...

[@naveenautomationlabs]

plz check the pinned comment.

[@jayt-ph1xd]

What to do if the filename is different every time?

[@naveenautomationlabs]

you can create a generic function and parameterize it.

[@jayt-ph1xd]

@@naveenautomationlabs the file download is different everytime and we don't know what the name will be just a pattern which is followed. I was looking into the directorystream class to do this but haven't tried it yet.

[@sriramkukkadapu1049]

Interviewe next question:
1.Do the same without Fluent wait ?
2. If the file is already downloaded, your script should be intelligent enough to delete the old file and re-download the new file.
3. During the file download if suddenly download fails how your script will handle that.

[@bihari1422]

1. Use count method in the folder to check the downloaded file is present
2. If not required, its always a good practice to clean the download directory before launching the browser.
3. Here count method can come handy and will be able to identify the file was not downloaded and we can recall the method again upon failure

[@ahamedabdulrahman]

Count method alone cant be used as we would have jenkins.msi.crdownload file presence while downloading. You would need to wait for this particular file’s absence.
This is for Chrome, it would change for other browsers I suppose.

[@ahamedabdulrahman]

4. What will you do if the file name is not known.

[@bihari1422]

@@ahamedabdulrahman downloading does not require file name to be known

[@MrMohit09]

public static void waitForFileDownload(WebDriver driver, String filePath) {
FluentWait wait = new FluentWait(driver)
.withTimeout(Duration.ofSeconds(60)) // Maximum wait time for the file download (adjust as needed)
.pollingEvery(Duration.ofSeconds(2)) // Polling interval
.ignoring(NoSuchElementException.class); // Ignore NoSuchElement exceptions
// Custom expected condition to check if the file exists at the specified path
wait.until((WebDriver webDriver) -> {
File file = new File(filePath);
return file.exists() && file.isFile();
});
}