Inspecting ChromeDriver HTTP Requests

geb_chromedriver_request_inspect.groovy

// A simple Geb (gebbish.org) WebDriver config
import io.github.bonigarcia.wdm.WebDriverManager
import org.openqa.selenium.chrome.ChromeDriver
import org.openqa.selenium.chrome.ChromeDriverService
import org.openqa.selenium.chrome.ChromeOptions
import org.openqa.selenium.logging.LogType
import org.openqa.selenium.logging.LoggingPreferences

driver = {
  // Uses https://github.com/bonigarcia/webdrivermanager to automate chromedriver setup
  WebDriverManager.chromedriver().setup()
  ChromeOptions options = new ChromeOptions()
  ChromeDriverService service = new ChromeDriverService.Builder().build()
  // Allows us to inspect the dev console network tab results for extracting headers (alternative to proxy/MITM interception)
  LoggingPreferences prefs = new LoggingPreferences()
  prefs.enable(LogType.PERFORMANCE, Level.ALL)
  options.setCapability(ChromeOptions.LOGGING_PREFS, prefs)
  // Finally, builds and returns the WebDriver instance
  return new ChromeDriver(service, options)
}


// Then anywhere else that you've rendered a page and have access to the WebDriver, you can do something like the following to inspect the request
import groovy.json.JsonSlurper
import org.openqa.selenium.logging.LogEntries
import org.openqa.selenium.logging.LogEntry
import org.openqa.selenium.logging.LogType

LogEntries entries = driver.manage().logs().get(LogType.PERFORMANCE)
JsonSlurper slurper = new JsonSlurper()
entries.collect { LogEntry log ->
    slurper.parseText(log.message.split("\\[INFO\\]").first()).message//.params?.request?.headers
}