how to send message to websocket connection via cpd?

[dima23113]

Hi! Please share the method of sending a message to a websocket connection.
I open a site, it has a websocket connection and I want to send something there, I just don't understand how

[mdmintz]

For non-UI actions using CDP, you'll first need to find a valid CDP method for it here: https://chromedevtools.github.io/devtools-protocol/ (Eg. in https://chromedevtools.github.io/devtools-protocol/tot/Network/ or https://chromedevtools.github.io/devtools-protocol/tot/Page/). And then find the Python CDP version for it available here: https://github.com/mdmintz/MyCDP.

Here's an example of calling a CDP method directly from a script:

SeleniumBase/examples/cdp_mode/raw_xhr_sb.py

Line 46 in 7f70a16

res = await page.send(mycdp.network.get_response_body(request[1]))

There are also examples of connection.send() as part of internal methods. Eg:

SeleniumBase/seleniumbase/undetected/cdp_driver/browser.py

Line 344 in 7f70a16

await connection.send(cdp.page.navigate("about:blank"))

From within a script, you can access the send() method from a Tab object. Eg:

tab = sb.cdp.get_active_tab()
tab.send(mycdp.DOMAIN.METHOD_NAME(ARGS))

For example, mycdp.page.navigate(URL) is a CDP call that can be sent via the send() method.

To use mycdp directly in a SeleniumBase script, be sure to import it first:

import mycdp