chain.proceed(chain.request())
      }
    client =
      client
        .newBuilder()
        .connectTimeout(Duration.ofSeconds(5))
        .addInterceptor(interceptor1)
        .addInterceptor(interceptor2)
        .build()
    val request1 =
      Request
        .Builder()
        .url("http://" + TestUtil.UNREACHABLE_ADDRESS_IPV4)
        .build()

    } as Source

  @Test
  fun emptyDoesntChangeRequestOrResponse() {
    val empty = CompressionInterceptor()
    val client =
      clientTestRule
        .newClientBuilder()
        .addInterceptor(empty)
        .addInterceptor { chain ->
          assertThat(chain.request().header("Accept-Encoding")).isNull()
          Response
            .Builder()
            .request(chain.request())
            .protocol(Protocol.HTTP_1_1)

provided Accept-Encoding is not set previously.  Modern web servers
must choose to return Brotli responses.  n.b. It is not used for
sending requests.

```java
OkHttpClient client = new OkHttpClient.Builder()
  .addInterceptor(BrotliInterceptor.INSTANCE)
  .build();
```

```kotlin
implementation("com.squareup.okhttp3:okhttp-brotli:5.1.0")
```

the `Accept-Encoding` header is not otherwise set. Web servers must be configured to return zstd
responses.

Note that zstd is not used for sending requests.

```java
OkHttpClient client = new OkHttpClient.Builder()
  .addInterceptor(ZstdInterceptor.INSTANCE)
  .build();
```

```kotlin
implementation("com.squareup.okhttp3:okhttp-zstd:0.0.0")
```

import okhttp3.Interceptor;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.Response;

public final class CurrentDateHeader {
  private final OkHttpClient client = new OkHttpClient.Builder()
      .addInterceptor(new CurrentDateInterceptor())
      .build();

  public void run() throws Exception {
    Request request = new Request.Builder()
        .url("https://publicobject.com/helloworld.txt")
        .build();

import okhttp3.Request;
import okhttp3.Response;

public final class PreemptiveAuth {
  private final OkHttpClient client;

  public PreemptiveAuth() {
    client = new OkHttpClient.Builder()
        .addInterceptor(
            new BasicAuthInterceptor("publicobject.com", "jesse", "password1"))
        .build();
  }

  public void run() throws Exception {
    Request request = new Request.Builder()

              else -> chain.proceed(chain.request())
            }
          },
        ).addNetworkInterceptor(networkInterceptor)
        .addInterceptor(applicationInterceptor)
        .sslSocketFactory(
          handshakeCertificates.sslSocketFactory(),
          handshakeCertificates.trustManager,
        ).hostnameVerifier(hostnameVerifier)
        .build()

 * limitations under the License.
 */
package okhttp3.brotli

import okhttp3.OkHttpClient
import okhttp3.Request

fun main() {
  val client =
    OkHttpClient
      .Builder()
      .addInterceptor(BrotliInterceptor)
      .build()

  sendRequest("https://httpbin.org/brotli", client)
  sendRequest("https://httpbin.org/gzip", client)
}

private fun sendRequest(
  url: String,
  client: OkHttpClient,

Register an _application_ interceptor by calling `addInterceptor()` on `OkHttpClient.Builder`:

```java
OkHttpClient client = new OkHttpClient.Builder()
    .addInterceptor(new LoggingInterceptor())
    .build();

Request request = new Request.Builder()
    .url("http://www.publicobject.com/helloworld.txt")

 */
package okhttp3.zstd

import okhttp3.CompressionInterceptor
import okhttp3.OkHttpClient
import okhttp3.Request

fun main() {
  val client =
    OkHttpClient
      .Builder()
      .addInterceptor(CompressionInterceptor(Zstd))
      .build()

  sendRequest("https://developers.facebook.com/docs/", client)
  sendRequest("https://www.facebook.com/robots.txt", client)