def get_storage_class_pricing()

in ddbtools/pricing.py [0:0]

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

    def get_storage_class_pricing(self, region_code: str, volume_type: str) -> Decimal:
        """Get table class pricing by looking for a specific volume type in the specified region."""
        response = self.pricing_client.get_products(
            ServiceCode=constants.DDB_RESOURCE_CODE,
            Filters=[{'Type': 'TERM_MATCH',
                      'Field': 'volumeType',
                      'Value': volume_type},
                     {'Type': 'TERM_MATCH',
                      'Field': 'regionCode',
                      'Value': region_code}
            ],
            FormatVersion='aws_v1',
            MaxResults=1
        )

        price_list = response['PriceList']
        product = json.loads(price_list[0])
        offer = product['terms']['OnDemand'].popitem()
        offer_terms = offer[1]
        price_dimensions = offer_terms['priceDimensions']

        for price_dimension_code in price_dimensions:
            price_terms = price_dimensions[price_dimension_code]
            price_per_unit = price_terms['pricePerUnit']['USD']
            storage_pricing = Decimal(price_per_unit)

            # Regions with free tier pricing will have an initial entry set to zero; skip this
            if storage_pricing != 0:
                return storage_pricing

        return None