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")

 * limitations under the License.
 */
package okhttp3.recipes.kt

import java.io.IOException
import okhttp3.OkHttpClient
import okhttp3.Request

class AccessHeaders {
  private val client = OkHttpClient()

  fun run() {
    val request =
      Request
        .Builder()
        .url("https://api.github.com/repos/square/okhttp/issues")

import org.codelibs.fess.app.service.WebAuthenticationService;
import org.codelibs.fess.crawler.client.CrawlerClientFactory;
import org.codelibs.fess.crawler.client.http.Authentication;
import org.codelibs.fess.crawler.client.http.HcHttpClient;
import org.codelibs.fess.helper.SystemHelper;
import org.codelibs.fess.mylasta.direction.FessConfig;
import org.codelibs.fess.mylasta.direction.FessProp;
import org.codelibs.fess.unit.UnitFessTestCase;

import javax.net.ssl.X509TrustManager;
import okhttp3.CipherSuite;
import okhttp3.ConnectionSpec;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.Response;

import static java.util.Arrays.asList;

public final class CustomCipherSuites {
  private final OkHttpClient client;

  public CustomCipherSuites() throws GeneralSecurityException {

 * limitations under the License.
 */
package okhttp3.recipes;

import java.io.IOException;
import java.security.cert.X509Certificate;
import okhttp3.Headers;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.Response;
import okhttp3.tls.Certificates;
import okhttp3.tls.HandshakeCertificates;

public final class CustomTrust {

 *
 *
 * The resulting file is used by [PublicSuffixDatabase].
 */
class PublicSuffixListGenerator(
  projectRoot: Path = ".".toPath(),
  val fileSystem: FileSystem = FileSystem.SYSTEM,
  val client: OkHttpClient = OkHttpClient(),
) {
  private val testResources = projectRoot / "okhttp/src/jvmTest/resources"
  private val publicSuffixListDotDat = testResources / "okhttp3/internal/publicsuffix/public_suffix_list.dat"

import okhttp3.HttpUrl.Companion.toHttpUrl
import okhttp3.OkHttpClient
import okhttp3.Request
import okhttp3.Response
import okhttp3.internal.platform.AndroidPlatform
import okio.IOException

open class MainActivity : ComponentActivity() {
  override fun onCreate(savedInstanceState: Bundle?) {
    super.onCreate(savedInstanceState)

    val client = OkHttpClient()

    // Ensure we are compiling against the right variant

    The best practice in OkHttp 3 is to create a single OkHttpClient instance
    and share it throughout the application. Requests that needs a customized
    client should call `OkHttpClient.newBuilder()` on that shared instance.
    This allows customization without the drawbacks of separate connection
    pools.

 *  **OkHttpClient is now stateless.** In the 2.x API `OkHttpClient` had getters

 */
package okhttp3.recipes.kt

import java.io.IOException
import okhttp3.Authenticator
import okhttp3.Credentials
import okhttp3.OkHttpClient
import okhttp3.Request
import okhttp3.Response
import okhttp3.Route

class Authenticate {
  private val client =
    OkHttpClient
      .Builder()
      .authenticator(
        object : Authenticator {
          @Throws(IOException::class)

import java.util.concurrent.CountDownLatch
import okhttp3.Call
import okhttp3.Callback
import okhttp3.Dns
import okhttp3.HttpUrl
import okhttp3.MediaType
import okhttp3.MediaType.Companion.toMediaType
import okhttp3.OkHttpClient
import okhttp3.Protocol
import okhttp3.Request
import okhttp3.RequestBody.Companion.toRequestBody
import okhttp3.Response
import okhttp3.internal.platform.Platform