How to access Network panel on google chrome developer tools with selenium?

I want to get the output that is shown on the network panel of the developer tools.

[Network panel --> Name, Method, Status, Type, Initiator, Size, Time, Timeline]

I need this information.

Solution 1:

This possible via Selenium WebDriver. For this you should do the following:

1. Download selenium language-specific client drivers from - http://docs.seleniumhq.org/download/ and add apropriate jar files to your project build path.

2. To run a test with Chrome/Chromium you will also need chromdriver binary which you can download from - http://chromedriver.storage.googleapis.com/index.html

3. Create a test case like this:

    // specify the path of the chromdriver binary that you have downloaded (see point 2)
    System.setProperty("webdriver.chrome.driver", "/root/Downloads/chromedriver");
    ChromeOptions options = new ChromeOptions();
    // if you like to specify another profile
    options.addArguments("user-data-dir=/root/Downloads/aaa"); 
    options.addArguments("start-maximized");
    DesiredCapabilities capabilities = DesiredCapabilities.chrome();
    capabilities.setCapability(ChromeOptions.CAPABILITY, options);
    WebDriver driver = new ChromeDriver(capabilities);
    driver.get("http://www.google.com");
    String scriptToExecute = "var performance = window.performance || window.mozPerformance || window.msPerformance || window.webkitPerformance || {}; var network = performance.getEntries() || {}; return network;";
    String netData = ((JavascriptExecutor)driver).executeScript(scriptToExecute).toString();

Executing javascript on Chrome/Chromium will help you to get the networking (not only) info. The resulting string 'netData' will contain the required data in JSONArray format.

Hope this will help.

Solution 2:

From this answer.

You can use the LoggingPreferences to get the Performance logs. It returns the data in json format. Here is a sample java code. Tested this with selenium 2.53, chromedriver 2.20, Chrome 50 on Ubuntu 14.04. This should work on windows also.

    DesiredCapabilities d = DesiredCapabilities.chrome();
    LoggingPreferences logPrefs = new LoggingPreferences();
    logPrefs.enable(LogType.PERFORMANCE, Level.ALL);
    d.setCapability(CapabilityType.LOGGING_PREFS, logPrefs);
    WebDriver driver = new ChromeDriver(d);
    driver.get("http://www.google.com");
    LogEntries les = driver.manage().logs().get(LogType.PERFORMANCE);
    for (LogEntry le : les) {
        System.out.println(le.getMessage());
    }

Here is a sample output. It is formatted manually. The actual ouput is in a single line.

{
    "message": {
        "method": "Network.requestWillBeSent",
        "params": {
            "documentURL": "https://www.google.co.in/?gfe_rd=cr&ei=gpwxV4OSKMmR2ASEg6-YCg&gws_rd=ssl",
            "frameId": "31172.2",
            "initiator": {
                "stack": {
                    "callFrames": [
                        {
                            "columnNumber": 11511,
                            "functionName": "",
                            "lineNumber": 55,
                            "scriptId": "50",
                            "url": "https://www.google.co.in/?gfe_rd=cr&ei=gpwxV4OSKMmR2ASEg6-YCg&gws_rd=ssl"
                        }
                    ]
                },
                "type": "script"
            },
            "loaderId": "31172.3",
            "request": {
                "headers": {
                    "Accept": "*/*",
                    "Referer": "https://www.google.co.in/",
                    "User-Agent": "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/50.0.2661.94 Safari/537.36"
                },
                "initialPriority": "Low",
                "method": "GET",
                "mixedContentType": "none",
                "url": "https://www.google.co.in/xjs/_/js/k=xjs.s.en.VTDhrkH4c9U.O/m=sx,c,sb,cdos,cr,elog,jsa,r,hsm,qsm,j,p,d,csi/am=AJQ0CwoS8fchIGwhrCA1YGBR/rt=j/d=1/t=zcms/rs=ACT90oGi2YIjVL5cBzOc1-MD37a1NqZ1jA"
            },
            "requestId": "31172.3",
            "timestamp": 251208.074288,
            "type": "Other",
            "wallTime": 1462869123.92204
        }
    },
    "webview": "8AF4A466-8027-4340-B9E9-CFEBDA769C50"
}