Resources, Not Actions

A product manager describes the checkout feature in three sentences:

"A shopper places an order containing several products, then checks its delivery status. Support cancels an order that has not shipped. Finance issues a refund and tracks whether it succeeded."

Seven nouns appear there: shopper, order, product, delivery status, support, refund, and finance.

How many of them should become URLs?

Publish all seven and the contract turns into a public copy of the storage layout. Publish too few and callers cannot address the things they need to act on