: Maps the incoming HTTP request body directly to a Java object, automatically handling deserialization (usually from JSON) via libraries like Jackson .

: Return a 201 Created status for successful creations rather than a generic 200 OK .

: It is often best to use DTOs rather than exposing your database entities directly to the API.

: Use @Valid along with Jakarta Bean Validation to ensure incoming data meets quality standards before processing.

: Allows you to control the full HTTP response, including the status code (e.g., 201 Created ), headers, and body. Implementation Best Practices For a "solid" implementation, consider these factors: