JSON to Object and Object to JSON converrsion at Spring REST Service - rnakidi/dsa GitHub Wiki https://stackoverflow.com/questions/65638066/how-does-spring-auto-convert-objects-to-json-for-restcontroller/65638232 https://www.linkedin.com/pulse/what-purpose-requestbody-annotation-spring-boot-kapil-sharma-4q6uc/ https://www.baeldung.com/spring-request-response-body