1.7 KiB
1.7 KiB
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CDPSession class
The CDPSession instances are used to talk raw Chrome Devtools Protocol.
Signature:
export declare class CDPSession extends EventEmitter
Extends: EventEmitter
Remarks
Protocol methods can be called with CDPSession.send() method and protocol events can be subscribed to with CDPSession.on method.
Useful links: DevTools Protocol Viewer and Getting Started with DevTools Protocol.
The constructor for this class is marked as internal. Third-party code should not call the constructor directly or create subclasses that extend the CDPSession class.
Example
const client = await page.target().createCDPSession();
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
});
Methods
| Method | Modifiers | Description |
|---|---|---|
| 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. | |
| send(method, paramArgs) |