fix: handle empty string decimal values in Shopify API responses - #339
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oliver006 merged 1 commit intoApr 4, 2026
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Shopify API sometimes returns empty strings ("") for optional decimal
fields like flat_modifier on CarrierShippingRateProvider. The
shopspring/decimal library cannot parse empty strings, causing
unmarshalling to fail.
Introduces FlexDecimal type that wraps *decimal.Decimal and gracefully
handles null, empty strings, and valid decimal values.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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Shopify API sometimes returns empty strings ("") for optional decimal fields like flat_modifier on CarrierShippingRateProvider. The shopspring/decimal library cannot parse empty strings, causing unmarshalling to fail.
Introduces FlexDecimal type that wraps *decimal.Decimal and gracefully handles null, empty strings, and valid decimal values.