[x] Read ObjectMapper and Write ObjectMapper. ObjectMapper provides functionality for reading and writing JSON, either to and from basic POJOs (Plain Old Java Objects), or to and from a general-purpose JSON Tree Model (JsonNode).> FYI, in FRQ2 you will see REST Serialization is mostly automatic with JPA
[x] Test APIs with Browser, Curl, or Postman. Illustrate or show tangibles.
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[x] Test and use VSCode Debugger in development. Illustrate or show tangibles. Following are instances of debugging. The circled text shows a display of the code step that is currently being run.