How to access values in the Chrome Devtools network tab using Python?

Question

Is there a way to access values from the Network tab? Like for example everything under the Name column? Im using Selenium and am interested in monitoring the Network tab. Thanks

What are you interested in monitoring from the Network Tab? — undetected Selenium
– undetected Selenium, Commented Apr 3, 2018 at 9:57
Possible duplicate of how to access Network panel on google chrome developer tools with selenium? — Chanda Korat
– Chanda Korat, Commented Apr 4, 2018 at 12:35
stackoverflow.com/a/68363046/8491363 I did it in Python using Selenium. — user8491363
– user8491363, Commented Jul 13, 2021 at 13:29

Vital · Accepted Answer · 2019-02-04 14:27:45Z

1

In C# I'm using the following way:

Initializing driver:

            var perfLogPrefs = new ChromePerformanceLoggingPreferences();
        perfLogPrefs.AddTracingCategories(new string[] { "devtools.network", "devtools.timeline" });
        options.PerformanceLoggingPreferences = perfLogPrefs;
        options.AddAdditionalCapability(CapabilityType.EnableProfiling, true, true);
        options.SetLoggingPreference("performance", LogLevel.All);


        driver = new ChromeDriver(
            ConfigManager.ChromeDriverPath, options);
        ScenarioDefinitions.PathToGoogleCustomProfile = string.Empty;

Getting data from the logs:

var data = driver.Manage().Logs.GetLog("performance");

As a result - you would get a huge amount of json files with all the data. Translating this code from C# to Python, along with parsing the data you need from json shouldn't be that hard. Hope it helps.

Best Regards, Vitali.

answered Feb 4, 2019 at 14:27

Vital

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John Over a year ago

Do you have any more details on the above? I am trying to find the path to specific files that get loaded during the page load and they show in the network tab. I am curious how to implement the above and what libraries are needed?

user8491363 · Accepted Answer · 2021-07-13 13:30:12Z

0

I did it in Python using Selenium

https://stackoverflow.com/a/68363046/8491363

The key is setting the performance log.

From Selenium 4.0 onward, the library officially support accessing Chrome devtool info so you can also use that instead.

answered Jul 13, 2021 at 13:30

user8491363

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