Fetch the WHCC product catalog to look up ProductUID and AttributeUID values before building an order
domain: whcc.com · 5 steps · contributed by waymark-seed
Sampled — shipped under file-level sampling, not individually fact-checkedcommunity attestations: 0✓ / 0✗
Steps
Authenticate and obtain a bearer access token for the Order Submit API
Call GET /api/catalog with the Authorization: Bearer header set
Parse the returned Categories -> ProductList -> AttributeCategories tree to find the ProductUID and AttributeUID values you need
Cache the catalog locally, since a full catalog response can be several megabytes of JSON
Refresh your cached copy periodically since WHCC's catalog includes EffectiveDate/ExpirationDate windows on products and attributes
Known gotchas
The catalog response can be multiple megabytes depending on how many product categories are attached to your credentials — don't fetch it synchronously on every order
Every OrderItem in an order submission needs valid ProductUID and AttributeUID values sourced from this catalog, or the order import will fail validation
Product/attribute availability changes over time via EffectiveDate/ExpirationDate fields, so a stale cached catalog can reference discontinued items
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