Selenium4: Chrome DevTools API

In Selenium 4, there is an Interface for Chrome DevTools API that lets you play with DevTools.

Here is a list of few things that we can achieve by using DevTools API with Selenium:

1. Use Console capabilities
2. Emulate network conditions
3. Perform security operations
4. Get performance and Metrics of our Browser/Network

The complete API can be found here: https://chromedevtools.github.io/devtools-protocol/

Showing below how we can listen to Chrome Console logs and close the browser using the “Devtools” interface.

public static void chromeDevTools() throws InterruptedException, IOException {

try {

chromeDevTools = driver.getDevTools();

chromeDevTools.createSession();

message = “Hi everyone, this is Dheeraj.”; driver.get(“https://testersdigest.blogspot.com”); // execute Script to write console message

driver.executeScript(“console.log(‘“ + message + “‘);”);

}

catch (Exception e) {

e.printStackTrace(); }

finally {

// Close browser gracefully.

chromeDevTools.send(new Command<>(“Browser.close”, ImmutableMap.of()));

}

chrome Dev Tools