PagingAndSortingRepository - custom pageable response structure

Question

Is there a way to simplify the structure returned from this controller:

@GetMapping
public Iterable getAll(@PathParam("page") int page)          


        

Answer 1

• It looks like you have to create custom JsonSerializer with @JsonComponent annotation.

• I will copy the code for reference but you can see it here. PageImpl JSON serialization

    @JsonComponent
    public class PageImplJacksonSerializer extends JsonSerializer> {

    @Override
    public void serialize(PageImpl page, 
                          JsonGenerator jsonGenerator, 
                          SerializerProvider serializerProvider) 
                          throws IOException {

        jsonGenerator.writeStartObject();
        jsonGenerator.writeObjectField("content", page.getContent());
        jsonGenerator.writeBooleanField("first", page.isFirst());
        jsonGenerator.writeBooleanField("last", page.isLast());
        jsonGenerator.writeNumberField("totalPages", page.getTotalPages());
        jsonGenerator.writeNumberField("totalElements", page.getTotalElements());
        jsonGenerator.writeNumberField("numberOfElements", 
                                       page.getNumberOfElements());

        jsonGenerator.writeNumberField("size", page.getSize());
        jsonGenerator.writeNumberField("number", page.getNumber());
        //sort omitted 

        jsonGenerator.writeEndObject();
      }
    }