[Projeto] GoogleBooks API

Segue a minha resolução do exercício do GoogleBooksAPI, agradeço ao https://cursos.alura.com.br/user/rafaelboldrini pela ajuda quando precisei modelar a estrutura JSON recebida.

Classe Record Livro:

public record Livro(String title, String[] authors, String publisher, String publishedDate) {
}

Classe JsonTreatment:

public class JsonTreatment {
    private Item[] items;
    public Item[] getItems() {
        return items;
    }

    public static class Item {
        private VolumeInfo volumeInfo;

        public VolumeInfo getVolumeInfo() {
            return volumeInfo;
        }
    }


    public static class VolumeInfo {
        private String title;
        private String[] authors;
        private String publisher;
        private String publishedDate;

        public String getTitle() {
            return title;
        }

        public String[] getAuthors() {
            return authors;
        }

        public String getPublisher() {
            return publisher;
        }

        public String getPublishedDate() {
            return publishedDate;
        }
    }

}

Classe da API:

import java.io.IOException;
import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;
import java.util.Scanner;

public class PesquisaLivros {
    public static void main(String[] args) throws IOException, InterruptedException {
        Scanner scanner = new Scanner(System.in);
        System.out.println("Insira o nome do resposta que você deseja buscar:");
        var resposta = scanner.nextLine();

        String API_KEY = "***************************************";
        String adress = "https://www.googleapis.com/books/v1/volumes?q=" + resposta + "&fields=items&key=" + API_KEY;
        HttpClient client = HttpClient.newHttpClient();
        HttpRequest request = HttpRequest.newBuilder()
                .uri(URI.create(adress))
                .build();
        HttpResponse<String> response = client
                .send(request, HttpResponse.BodyHandlers.ofString());

        String json = response.body();
        Gson gson = new GsonBuilder().create();

        JsonTreatment respostaLivros = gson.fromJson(json, JsonTreatment.class);
        if (respostaLivros.getItems().length > 0) {
            JsonTreatment.VolumeInfo volumeInfo = respostaLivros.getItems()[0].getVolumeInfo();
            Livro livro = new Livro(volumeInfo.getTitle(), volumeInfo.getAuthors(), volumeInfo.getPublisher(), volumeInfo.getPublishedDate());
            System.out.println(livro);
        } else {
            System.out.println("Nenhum livro encontrado.");
        }
    }
}