Need help with captcha

Hello! I need help.

I send a post request for authorization, and sometimes captcha is shown after requests.
How can I make a project so that OB sends base64 captcha code to capmonster.

Namely, I want to know how to put the blocks correctly: If after the request there is a captcha, then parse the base64 data and send it to capmonster, If there is no captcha after the request, then do KeyCheck

REQUEST POST “https://*****/m/Menu.aspx”
CONTENT “__VIEWSTATE=&ctl00%24MainCPH%24LoginControl%24TextboxBrowserName=&ctl00%24MainCPH%24LoginControl%24TextUserID=&ctl00%24MainCPH%24LoginControl%24TextPassword=&ctl00%24MainCPH%24LoginControl%24ButtonSubmit=Sign+In&hidJSTest=true&__VIEWSTATEGENERATOR=CEF4095C&__VIEWSTATEENCRYPTED=&__EVENTVALIDATION=”
CONTENTTYPE “application/x-www-form-urlencoded”

///Here in this place I do not understand how to do it right.

KEYCHECK
KEYCHAIN Failure OR
KEY “Your attempt to sign on has failed.”
KEYCHAIN Success OR
KEY “Security Challenge”
KEYCHAIN Ban OR
KEY “This question is for testing whether you are a human”

After entering the captcha, the captcha may appear again, which means after I have sent the results of the first captcha, you need to check for the presence of captcha

Please consider using OB2 as I won’t provide support for OB1 anymore

Hi Ruri, can you please tell me how to do it on OB2