@JsonProperty() and @JsonClassType() decorators

JsonPropertyAndJsonClassTypeExample.ts

class Book {
  @JsonProperty() @JsonClassType({type: () => [String]})
  name: string;

  @JsonProperty() @JsonClassType({type: () => [String]})
  category: string;
}

class Writer {
  @JsonProperty() @JsonClassType({type: () => [Number]})
  id: number;
  @JsonProperty() @JsonClassType({type: () => [String]})
  name: string;

  @JsonProperty() @JsonClassType({type: () => [Array, [Book]]})
  books: Book[] = [];
}