After refactoring POST PUT to just PUT /user/additional_info

users.py

//...

    @classmethod
    @users_ns.doc("update_user_additional_info")
    @users_ns.response(
        HTTPStatus.OK, f"{messages.ADDITIONAL_INFO_SUCCESSFULLY_UPDATED}"
    )
    @users_ns.response(
        HTTPStatus.CREATED, f"{messages.ADDITIONAL_INFO_SUCCESSFULLY_CREATED}"
    )
    @users_ns.response(
        HTTPStatus.BAD_REQUEST,
        f"{messages.USER_ID_IS_NOT_VALID}\n"
        f"{messages.IS_ORGANIZATION_REP_FIELD_IS_MISSING}\n"
        f"{messages.TIMEZONE_FIELD_IS_MISSING}\n"
        f"{messages.UNEXPECTED_INPUT}"
    )
    @users_ns.response(
        HTTPStatus.FORBIDDEN, f"{messages.USER_ID_IS_NOT_RETRIEVED}"
    )
    @users_ns.response(
        HTTPStatus.INTERNAL_SERVER_ERROR, f"{messages.INTERNAL_SERVER_ERROR}"
    )
    @users_ns.expect(auth_header_parser, user_extension_request_body_model, validate=True)
    def put(cls):
        """
        Creates or updates user additional information

        A user with valid access token can use this endpoint to create or update additional information to their own data. 
        The endpoint takes any of the given parameters (is_organization_rep (true or false value), timezone 
        (with value as per Timezone Enum Value) and additional_info (dictionary of phone, mobile and personal_website)).
        The response contains a success or error message. This request only accessible once user retrieves their user_id
        by sending GET /user/personal_details.
        """

        token = request.headers.environ["HTTP_AUTHORIZATION"]
        is_wrong_token = validate_token(token)
        
        if not is_wrong_token:
            data = request.json
            if not data:
                return messages.NO_DATA_FOR_UPDATING_PROFILE_WAS_SENT, HTTPStatus.BAD_REQUEST

            is_field_valid = expected_fields_validator(data, user_extension_request_body_model)
            if not is_field_valid.get("is_field_valid"):
                return is_field_valid.get("message"), HTTPStatus.BAD_REQUEST
            
            is_not_valid = validate_update_additional_info_request(data)
            if is_not_valid:
                return is_not_valid, HTTPStatus.BAD_REQUEST

            return UserExtensionDAO.update_user_additional_info(data)
             
        return is_wrong_token