* http://localhost:53203/oauth/}, passing the same port to this class’ constructor.
 */
public final class SlackApi {
  private final HttpUrl baseUrl = HttpUrl.get("https://slack.com/api/");
  private final OkHttpClient httpClient;
  private final Moshi moshi;

  public final String clientId;
  public final String clientSecret;
  public final int port;

  server.start();

  // Ask the server for its URL. You'll need this to make HTTP requests.
  HttpUrl baseUrl = server.url("/v1/chat/");

  // Exercise your application code, which should make those HTTP requests.
  // Responses are returned in the same order that they are enqueued.
  Chat chat = new Chat(baseUrl);

  chat.loadMore();
  assertEquals("hello, world!", chat.messages());

  chat.loadMore();
  chat.loadMore();

) {
  private val moshi = Moshi.Builder().build()

  private val moshiConverterFactory = MoshiConverterFactory.create(moshi)

  private val retrofit =
    Retrofit.Builder()
      .baseUrl(SslLabsService.BASE_URL)
      .addConverterFactory(moshiConverterFactory)
      .callFactory(callFactory)
      .build()

  private val api = retrofit.create(SslLabsService::class.java)

  callFactory: Call.Factory,
) {
  private val moshi = Moshi.Builder().build()

  private val moshiConverterFactory = MoshiConverterFactory.create(moshi)

  private val retrofit =
    Retrofit.Builder()
      .baseUrl(SslLabsApi.BASE_URL)
      .addConverterFactory(moshiConverterFactory)
      .callFactory(callFactory)
      .build()

  private val sslLabsApi = retrofit.create(SslLabsApi::class.java)