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Reading-path month: June 2026. Collection published on September 12, 2026. Months organize the reading path; they are not earlier publication dates.

REST APIs: protect operation order

Individually correct endpoints can form an incorrect workflow.

API Security

Content produced with AI assistance for Thiago Silva’s website. Independent editorial analysis; it does not represent clients or employers.

Reading context

A short architecture article. The technical reference supports the topic; hypothetical scenarios and assessment proposals are editorial analysis, not accounts of personal implementations.

Original source ↗

The architecture decision

An allowed operation may be inappropriate at the current process stage. Review states and transitions alongside route authorization.

Practical application

Editorial proposal: model a critical journey as a state machine. For a hypothetical order, record actions permitted before and after confirmation, including repetition and concurrency.

How to verify

Test out-of-order calls and verify consistent state. Record duplicate-request handling. Consumers should recover from failures without legitimate retries causing duplicate changes or unauthorized business transitions.

Sources

  1. OWASP — REST Security Cheat Sheet