Unable to convert custom Selenium python keyword to use Browser Library

Libraries Browser
1

I am trying to convert these Selenium based custom keywords, to work with Browser:
def get_driver(override):
if override == “browserLibrary”:
logger.console(f"\nGet Driver: Browser")
driver = BuiltIn().get_library_instance(“Browser”).connect_to_browser #???
else:
logger.console(f"\nGet Driver: SeleniumLibrary")
driver = BuiltIn().get_library_instance(“SeleniumLibrary”).driver #This works!!!
return driver

then,
def extract_cookies_from_browser(self) → None:
driver = get_driver(self.override)
if driver:
if self.override == ‘browserLibrary’:
cookie = driver.contexts[0].get_cookie. #Not working (using BrowserLibrary)???
else:
cookie = driver.get_cookie(cookie). #works using SeleniumLibrary browser

When I used Browser instead of Selenium, I get the following:
AttributeError: ‘function’ object has no attribute ‘contexts’

2 
driver = BuiltIn().get_library_instance(“Browser”).connect_to_browser #???

The code above using kw Connect To Browser does not return the Browser Library instance.

It should just be:

BuiltIn().get_library_instance('Browser')

Then replace:

cookie = driver.contexts[0].get_cookie. #Not working (using BrowserLibrary)???

with:

cookie = driver.get_cookie(cookie)

Get Cookie

or:

cookie = driver.get_cookies()

Get Cookies

2 Likes
3

Thank you Terry. This definitely solves my first problem of connecting to Browser instance.
However, it seems there are slight differences between the selenium’s get_cookie and add_cookie & browsers get_cookie and add_cookie.

For example, using selenium driver:

add_cookie(cookie)
when cookie = {‘domain’: ‘.my-test-domain.com’, ‘expiry’: 1775920102, ‘name’: ‘_ids’, ‘path’: ‘/’, ‘sameSite’: ‘None’, ‘secure’: True, ‘value’: ‘my-value’}

  • python code successful, no exception thrown
    &
    get_cookie(name)
    when name = _ids_legacy
  • python code successful, no exception thrown: returns:

data={“value”:{“domain”:“.my-test-domain.com”,“expiry”:1775920102,“httpOnly”:false,“name”:“_ids_legacy”,“path”:“/”,“sameSite”:“Lax”,“secure”:true,“value”:“my-value”}} | headers=HTTPHeaderDict({‘Content-Length’: ‘264’, ‘Content-Type’: ‘application/json; charset=utf-8’, ‘cache-control’: ‘no-cache’})

However, when driver is browser instance,

add_cookie(cookie)
when cookie = {‘domain’: ‘.my-test-domain.com’, ‘expiry’: 1775920102, ‘name’: ‘_ids’, ‘path’: ‘/’, ‘sameSite’: ‘None’, ‘secure’: True, ‘value’: ‘my-value’}

  • python error: TypeError: Cookie.add_cookie() missing 1 required positional argument: ‘value’

&
get_cookie(name)
when name = _ids_legacy

  • python TypeError: Object of type datetime is not JSON serializable

returns:
‘_ids_legacy’: {‘name’: ‘_ids_legacy’, ‘value’: ‘ATkOy-2ja2-1XU_glJJcUHxd5S9UiQZ0mHqCVxaZ55zqwo72ovr6doZnq9erqMPMmYJytYI8hsf3c53MkB5Z5IX4PERxfRI4B7fkKg’, ‘domain’: ‘.auth-us1.smarttech-prod.com’, ‘path’: ‘/’, ‘expires’: datetime.datetime(2026, 4, 11, 15, 13, 17, 736, tzinfo=datetime.timezone.utc), ‘httpOnly’: False, ‘secure’: True, ‘sameSite’: ‘Lax’}

So final solution would be to update my custom add_cookie function to convert cookie dict to a individual string parameters, before passing to driver.add_cookie()
and to convert the datatime to epoch before passing to driver.get_cookie().

But, first I will have a look at the actual selenium and browser python functions to be sure this is format expected.