Introducing the 3.1 Maturity Level of REST API Design: JSON Schema-Aware Hypermedia
REST API maturity is often evaluated using the Richardson Maturity Model (RMM), which defines four levels: Level 0 – Single URI, typically using POST for everything Level 1 – Resources identified by URIs Level 2 – Use of HTTP methods to define behavior (GET, POST, PUT, DELETE) Level 3 – Hypermedia controls (HATEOAS) However, traditional REST maturity models often overlook an important aspect: schema awareness. That’s why I would like to propose a new, unofficial but pragmatic step after Level 3: ...