Source: https://playwright.dev/docs/api/class-cdpsession

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The CDPSession instances are used to talk raw Chrome Devtools Protocol:

• protocol methods can be called with session.send method.
• protocol events can be subscribed to with session.on method.

Useful links:

• Documentation on DevTools Protocol can be found here: DevTools Protocol Viewer .

• Getting Started with DevTools Protocol: https://github.com/aslushnikov/getting-started-with-cdp/blob/master/README.md

  const client = await page.context().newCDPSession(page);await client.send('Animation.enable');client.on('Animation.animationCreated', () => console.log('Animation created!'));const response = await client.send('Animation.getPlaybackRate');console.log('playback rate is ' + response.playbackRate);await client.send('Animation.setPlaybackRate', { playbackRate: response.playbackRate / 2});

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Methods​

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detach​

Added before v1.9 cdpSession.detach

Detaches the CDPSession from the target. Once detached, the CDPSession object won't emit any events and can't be used to send messages.

Usage

await cdpSession.detach();

Returns

• Promise <void >#

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send​

Added before v1.9 cdpSession.send

Usage

await cdpSession.send(method);await cdpSession.send(method, params);

Arguments

• method string #

  Protocol method name.

• params Object (optional)#

  Optional method parameters.

Returns

• Promise <Object >#

• Methods

  • detach

  • send