Spring Boot REST API Design —URL Conventions, Versioning Strategies, Idempotency Keys & Status Codes

In this video I cover REST API best practices for Spring Boot — correct HTTP methods and status codes, URL design with nouns not verbs, three API versioning strategies with trade-offs, idempotency keys for safe retries, and response design with Location headers and ETags. Chapters: 00:00 — five things wrong with one controller 01:02 — URL design — nouns, plural, actions as sub-resources 02:15 — HTTP methods 03:36 — HTTP status codes — 401 vs 403 04:47 — Response design — Location header, ETag, Cache-Control 05:51 — API versioning — URI vs header vs content negotiation 06:46 — Idempotency keys — safe POST retries with Redis #restapi #springboot #apidesign #versioning #idempotency #javainterviewquestions #javadeveloper