What makes an API error contract useful to frontend developers?
It defines predictable error categories and useful field-level details without exposing internal secrets. The interface can then display appropriate messages and preserve information the user already entered.
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More FAQs in Why should an application define clear API boundaries?
Keeping database access behind server-side operations creates a place to enforce permissions and validation consistently. Components can then depend on documented behavior rather than storage details.
Yes. A single deployed application can define clear boundaries between modules or HTTP endpoints. Boundaries describe responsibilities and contracts, even when deployment remains shared.
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