def post_receive_json(self, form_data: dict):
session_config_name = form_data['session_config']
config = SESSION_CONFIGS_DICT.get(session_config_name)
if not config:
msg = f'Session config "{session_config_name}" does not exist.'
self.send_json({'validation_errors': msg})
return
num_participants = config['num_demo_participants']
use_browser_bots = config.get('use_browser_bots', False)
self.create_session_then_send_start_link(
session_config_name=session_config_name,
use_browser_bots=use_browser_bots,
num_participants=num_participants,
is_demo=True)
