def update_wheel()

in api/wheel.py [0:0]

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

def update_wheel(event):
    """
    Update the name of the wheel and/or refresh its participant count

    :param event: Lambda event containing the API Gateway request path parameter wheel_id
    {
      "pathParameters":
      {
        "wheel_id": string ID of the wheel (DDB Hash Key)
      },
      "body":
      {
        "id": string ID of the wheel (DDB Hash Key),
        "name": string name of the wheel,
      }
    }
    :return: response dictionary containing the updated wheel object if successful
    {
      "body":
      {
        "id": string ID of the wheel (DDB Hash Key),
        "name": string name of the wheel,
        "participant_count": number of participants in the wheel,
        "created_at": creation timestamp,
        "updated_at": updated timestamp,
      }
    }
    """
    wheel_id = event['pathParameters']['wheel_id']
    key = {'id': wheel_id}
    # Make sure wheel exists
    wheel = Wheel.get_existing_item(Key=key)
    name = event['body'].get('name', None)
    if not check_string(name):
        raise base.BadRequestError("Updating a wheel requires a new name of at least 1 character in length")

    update = {'name': name, 'updated_at': get_utc_timestamp()}
    Wheel.update_item(Key=key, **to_update_kwargs(update))
    # Represent the change locally for successful responses
    wheel.update(update)
    return wheel