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

Answer 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.

Answer 2

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.