public void getToken(String code_verifier) throws IOException, InterruptedException {

        String url = "https://myanimelist.net/v1/oauth2/token";
        Scanner scanner = new Scanner(System.in);
        String code = scanner.nextLine();
        code = code.trim();


        String code_encoded = URLEncoder.encode(code,StandardCharsets.UTF_8);
        String code_verifier_encoded = URLEncoder.encode(code_verifier,StandardCharsets.UTF_8);
        String client_id_encoded = URLEncoder.encode(CLIENT_ID,StandardCharsets.UTF_8);
        String grant_type_encoded = URLEncoder.encode("authorization_code",StandardCharsets.UTF_8);


        String requestBody = "code="+code_encoded+"&code_verifier="+code_verifier_encoded+"&grant_type"+grant_type_encoded+"&client_id"+client_id_encoded;
        System.out.println(requestBody);


        HttpClient client = HttpClient.newBuilder()
                .build();


        HttpRequest request = HttpRequest.newBuilder()
                .POST(HttpRequest.BodyPublishers.ofString(requestBody))
                .uri(URI.create(url))
                .headers("Content-Type", "application/x-www-form-urlencoded")
                .build();


        HttpResponse<String> response = client.send(request, HttpResponse.BodyHandlers.ofString());
        System.out.println(response.statusCode());
        System.out.println(response.body());


    }