Interface BrowserType

All Known Implementing Classes:
BrowserTypeImpl

public interface BrowserType
BrowserType provides methods to launch a specific browser instance or connect to an existing one. The following is a typical example of using Playwright to drive automation:

 import com.microsoft.playwright.*;

 public class Example {
   public static void main(String[] args) {
     try (Playwright playwright = Playwright.create()) {
       BrowserType chromium = playwright.chromium();
       Browser browser = chromium.launch();
       Page page = browser.newPage();
       page.navigate("https://example.com");
       // other actions...
       browser.close();
     }
   }
 }
 
  • Method Details

    • connect

      default Browser connect(String wsEndpoint)
      This method attaches Playwright to an existing browser instance. When connecting to another browser launched via BrowserType.launchServer in Node.js, the major and minor version needs to match the client version (1.2.3 → is compatible with 1.2.x).
      Parameters:
      wsEndpoint - A browser websocket endpoint to connect to.
      Since:
      v1.8
    • connect

      Browser connect(String wsEndpoint, BrowserType.ConnectOptions options)
      This method attaches Playwright to an existing browser instance. When connecting to another browser launched via BrowserType.launchServer in Node.js, the major and minor version needs to match the client version (1.2.3 → is compatible with 1.2.x).
      Parameters:
      wsEndpoint - A browser websocket endpoint to connect to.
      Since:
      v1.8
    • connectOverCDP

      default Browser connectOverCDP(String endpointURL)
      This method attaches Playwright to an existing browser instance using the Chrome DevTools Protocol.

      The default browser context is accessible via Browser.contexts().

      NOTE: Connecting over the Chrome DevTools Protocol is only supported for Chromium-based browsers.

      **Usage**

      
       Browser browser = playwright.chromium().connectOverCDP("http://localhost:9222");
       BrowserContext defaultContext = browser.contexts().get(0);
       Page page = defaultContext.pages().get(0);
       
      Parameters:
      endpointURL - A CDP websocket endpoint or http url to connect to. For example http://localhost:9222/ or ws://127.0.0.1:9222/devtools/browser/387adf4c-243f-4051-a181-46798f4a46f4.
      Since:
      v1.9
    • connectOverCDP

      Browser connectOverCDP(String endpointURL, BrowserType.ConnectOverCDPOptions options)
      This method attaches Playwright to an existing browser instance using the Chrome DevTools Protocol.

      The default browser context is accessible via Browser.contexts().

      NOTE: Connecting over the Chrome DevTools Protocol is only supported for Chromium-based browsers.

      **Usage**

      
       Browser browser = playwright.chromium().connectOverCDP("http://localhost:9222");
       BrowserContext defaultContext = browser.contexts().get(0);
       Page page = defaultContext.pages().get(0);
       
      Parameters:
      endpointURL - A CDP websocket endpoint or http url to connect to. For example http://localhost:9222/ or ws://127.0.0.1:9222/devtools/browser/387adf4c-243f-4051-a181-46798f4a46f4.
      Since:
      v1.9
    • executablePath

      String executablePath()
      A path where Playwright expects to find a bundled browser executable.
      Since:
      v1.8
    • launch

      default Browser launch()
      Returns the browser instance.

      **Usage**

      You can use ignoreDefaultArgs to filter out --mute-audio from default arguments:

      
       // Or "firefox" or "webkit".
       Browser browser = chromium.launch(new BrowserType.LaunchOptions()
         .setIgnoreDefaultArgs(Arrays.asList("--mute-audio")));
       

      > **Chromium-only** Playwright can also be used to control the Google Chrome or Microsoft Edge browsers, but it works best with the version of Chromium it is bundled with. There is no guarantee it will work with any other version. Use executablePath option with extreme caution.

      >

      > If Google Chrome (rather than Chromium) is preferred, a Chrome Canary or Dev Channel build is suggested.

      >

      > Stock browsers like Google Chrome and Microsoft Edge are suitable for tests that require proprietary media codecs for video playback. See this article for other differences between Chromium and Chrome. This article describes some differences for Linux users.

      Since:
      v1.8
    • launch

      Returns the browser instance.

      **Usage**

      You can use ignoreDefaultArgs to filter out --mute-audio from default arguments:

      
       // Or "firefox" or "webkit".
       Browser browser = chromium.launch(new BrowserType.LaunchOptions()
         .setIgnoreDefaultArgs(Arrays.asList("--mute-audio")));
       

      > **Chromium-only** Playwright can also be used to control the Google Chrome or Microsoft Edge browsers, but it works best with the version of Chromium it is bundled with. There is no guarantee it will work with any other version. Use executablePath option with extreme caution.

      >

      > If Google Chrome (rather than Chromium) is preferred, a Chrome Canary or Dev Channel build is suggested.

      >

      > Stock browsers like Google Chrome and Microsoft Edge are suitable for tests that require proprietary media codecs for video playback. See this article for other differences between Chromium and Chrome. This article describes some differences for Linux users.

      Since:
      v1.8
    • launchPersistentContext

      default BrowserContext launchPersistentContext(Path userDataDir)
      Returns the persistent browser context instance.

      Launches browser that uses persistent storage located at userDataDir and returns the only context. Closing this context will automatically close the browser.

      Parameters:
      userDataDir - Path to a User Data Directory, which stores browser session data like cookies and local storage. More details for Chromium and Firefox. Note that Chromium's user data directory is the **parent** directory of the "Profile Path" seen at chrome://version. Pass an empty string to use a temporary directory instead.
      Since:
      v1.8
    • launchPersistentContext

      BrowserContext launchPersistentContext(Path userDataDir, BrowserType.LaunchPersistentContextOptions options)
      Returns the persistent browser context instance.

      Launches browser that uses persistent storage located at userDataDir and returns the only context. Closing this context will automatically close the browser.

      Parameters:
      userDataDir - Path to a User Data Directory, which stores browser session data like cookies and local storage. More details for Chromium and Firefox. Note that Chromium's user data directory is the **parent** directory of the "Profile Path" seen at chrome://version. Pass an empty string to use a temporary directory instead.
      Since:
      v1.8
    • name

      String name()
      Returns browser name. For example: "chromium", "webkit" or "firefox".
      Since:
      v1.8