def delete_participant()

in api/wheel_participant.py [0:0]

• 7 lines of code
• 3 McCabe index (conditional complexity)

def delete_participant(event):
    """
    Deletes the participant from the wheel and redistributes wheel weights

    :param event: Lambda event containing the API Gateway request path parameters wheel_id and participant_id
    {
      "pathParameters":
      {
        "wheel_id": string ID of the wheel (DDB Hash Key)
        "participant_id": string ID of the participant (DDB Hash Key)
      },
    }
    :return: response dictionary
    """
    wheel_id = event['pathParameters']['wheel_id']
    participant_id = event['pathParameters']['participant_id']
    # Make sure the wheel exists
    wheel = Wheel.get_existing_item(Key={'id': wheel_id})

    # REST-ful Deletes are idempotent and should not error if it's already been deleted
    response = WheelParticipant.delete_item(Key={'wheel_id': wheel_id, 'id': participant_id}, ReturnValues='ALL_OLD')
    if 'Attributes' in response:
        choice_algorithm.on_participant_deletion(wheel, response['Attributes'])