How to save a raw JSON in the MySQL using JPA - json

Question

I need to save this JSON in MySQL database, and later recover it and display in the frontend
I'm using Spring boot with JPA, but i have been facing errors about serialization when the Request comes from frontend, like this:
I send the json from the frontend to my controller:
#RestController
#RequestMapping("/theoriclesson")
#CrossOrigin
public class TheoricLessonController implements ITheoricLessonController {
#Autowired
private TheoricLessonRepository theoricLessonRepository;
#Autowired
private ModuleRepository moduleRepository;
#Override
#PostMapping("/")
public void add(#RequestBody TheoricLesson theoricLesson) {
Module module = new Module();
module.setName("Modulo de teste");
TheoricLesson tc = new TheoricLesson();
Module mP = moduleRepository.save(module);
tc.setModule(mP);
theoricLessonRepository.save(tc);
}
}
and my entities:
#Data
#Entity
#Builder
public class TheoricLesson {
#Id
#GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
private Long xpEarned;
private String lessonName;
#Embedded
private DraftJsText draftJsText;
#ManyToOne
#JoinColumn(name = "module_id")
#JsonIgnore
private Module module;
}
#Getter
#Setter
#ToString
#Embeddable
public class DraftJsText {
public DraftJsText() {
}
public DraftJsText(String blocks, String entityMap) {
this.blocks = blocks;
this.entityMap = entityMap;
}
#Column(columnDefinition = "JSON")
private String blocks;
#Column(columnDefinition = "JSON")
private String entityMap;
}