if (x * i == n) return "${factor(x)} × $i"
          }
          return n.toString()
        }
      }

    val request =
      Request(
        url = "https://api.github.com/markdown/raw".toHttpUrl(),
        body = requestBody,
      )

    client.newCall(request).execute().use { response ->
      if (!response.isSuccessful) throw IOException("Unexpected code $response")

      println(response.body.string())

import org.apache.maven.api.annotations.NotThreadSafe;
import org.apache.maven.api.annotations.Nullable;

import static java.util.Objects.requireNonNull;

/**
 * A request to resolve a version range to a list of matching versions.
 * This request is used by {@link VersionRangeResolver} to expand version ranges
 * (e.g., "[3.8,4.0)") into concrete versions available in the configured repositories.
 *
 * @since 4.0.0
 */

    call: Call,
    e: IOException,
  ) {
    responses.add(RecordedResponse(call.request(), null, null, null, e))
    (this as Object).notifyAll()
  }

  @Synchronized
  override fun onResponse(
    call: Call,
    response: Response,
  ) {
    val body = response.body.string()
    responses.add(RecordedResponse(call.request(), response, null, body, null))
    (this as Object).notifyAll()
  }

  /**

    try {
      exchange.writeRequestHeaders(request)

      if (hasRequestBody) {
        // If there's a "Expect: 100-continue" header on the request, wait for a "HTTP/1.1 100
        // Continue" response before transmitting the request body. If we don't get that, return
        // what we did get (such as a 4xx response) without ever transmitting the request body.

   */
  open fun requestHeadersEnd(
    call: Call,
    request: Request,
  ) {
  }

  /**
   * Invoked just prior to sending a request body.  Will only be invoked for request allowing and
   * having a request body to send.
   *
   * The connection is implicit, and will generally relate to the last [connectionAcquired] event.
   *

  override val socket: Socket
    get() = stream!!

  override fun createRequestBody(
    request: Request,
    contentLength: Long,
  ): Sink = stream!!.sink

  override fun writeRequestHeaders(request: Request) {
    if (stream != null) return

    val hasRequestBody = request.body != null
    val requestHeaders = http2HeadersList(request)
    stream = http2Connection.newStream(requestHeaders, hasRequestBody)

    server.enqueue(MockResponse())

    val request = Request.Builder().url(server.url("/")).build()

    client.newCall(request).execute().use {
      assertEquals(200, it.code)
      assertEquals(listOf<Certificate>(), it.handshake?.peerCertificates)
    }
  }

  @Test
  fun testRequestUsesAndroidConscrypt() {
    assumeNetwork()

    val request = Request.Builder().url("https://facebook.com/robots.txt").build()

El middleware responde a dos tipos particulares de request HTTP...

### Requests de preflight CORS { #cors-preflight-requests }

Estos son cualquier request `OPTIONS` con headers `Origin` y `Access-Control-Request-Method`.

En este caso, el middleware interceptará el request entrante y responderá con los headers CORS adecuados, y un response `200` o `400` con fines informativos.

### Requests simples { #simple-requests }

    private MavenExecutionRequest populateFromSettings(MavenExecutionRequest request, Settings settings)
            throws MavenExecutionRequestPopulationException {
        if (settings == null) {
            return request;
        }

        request.setOffline(settings.isOffline());

        request.setInteractiveMode(settings.isInteractiveMode());

        request.setPluginGroups(settings.getPluginGroups());

    Response response = client.newCall(request).execute();
    response.body().close();
  }

  private static class LoggingInterceptor implements Interceptor {
    @Override public Response intercept(Chain chain) throws IOException {
      long t1 = System.nanoTime();
      Request request = chain.request();
      logger.info(String.format("Sending request %s on %s%n%s",
          request.url(), chain.connection(), request.headers()));