import time

from fastapi import FastAPI, Request

app = FastAPI()


@app.middleware("http")
async def add_process_time_header(request: Request, call_next):
    start_time = time.perf_counter()
    response = await call_next(request)
    process_time = time.perf_counter() - start_time
    response.headers["X-Process-Time"] = str(process_time)

     * functionality. This implementation uses request-scoped caching ({@link CacheRetention#REQUEST_SCOPED})
     * since it represents a POM file that is actively being built and may change during the build process.
     * <p>
     * The request-scoped retention policy ensures that:
     * <ul>
     *   <li>Changes to the POM file during the build are detected</li>

      ))
      .build()
```

## EventListener events 

Cache Events are exposed via the EventListener API.  Typical scenarios are below.

### Cache Hit

In the ideal scenario the cache can fulfill the request without any conditional call to the network.
This will skip the normal events such as DNS, connecting to the network, and downloading the response body.

        request.setShowErrors(context.options().showErrors().orElse(false));
        request.setBaseDirectory(context.invokerRequest.topDirectory().toFile());
        request.setSystemProperties(toProperties(context.protoSession.getSystemProperties()));
        request.setUserProperties(toProperties(context.protoSession.getUserProperties()));

        request.setInstallationSettingsFile(

              .build())
      .build();

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

    try (Response response = client.newCall(request).execute()) {
      if (!response.isSuccessful()) throw new IOException("Unexpected code " + response);

Build/Install - Performance - Support - Feature Request - Documentation Feature
Request - Documentation Bug - Others validations: required: true - type:
markdown attributes: value: | Please make sure that this is a bug. As per our
[GitHub Policy](https://github.com/tensorflow/tensorflow/blob/master/ISSUES.md),we
only address code/doc bugs, performance issues, feature requests and
build/installation issues on GitHub.

-   type: markdown

    fn: Response.Builder.() -> Unit = {},
  ): Response =
    Response
      .Builder()
      .body(bodyHex.toResponseBody("text/plain".toMediaType()))
      .code(200)
      .message("OK")
      .request(Request.Builder().url(url).build())
      .protocol(Protocol.HTTP_2)
      .apply(fn)
      .build()

    val client =
      clientTestRule
        .newClientBuilder()
        .sslSocketFactory(clientCertificates.sslSocketFactory(), clientCertificates.trustManager)
        .build()

    val call = client.newCall(Request(server.url("/")))
    val response = call.execute()
    assertThat(response.code).isEqualTo(200)
    assertThat(response.handshake!!.cipherSuite).isNotNull()
    assertThat(response.handshake!!.tlsVersion).isNotNull()

        DefaultProjectBuildingRequest request = new DefaultProjectBuildingRequest();
        RepositorySystemSession.CloseableSession rsession = repositorySessionFactory
                .newRepositorySessionBuilder(mavenRequest)
                .build();
        request.setRepositorySession(rsession);

import okhttp3.Protocol;
import okhttp3.Request;
import okhttp3.Response;
import okhttp3.ResponseBody;

public final class PrintEvents {
  private final OkHttpClient client = new OkHttpClient.Builder()
      .eventListenerFactory(PrintingEventListener.FACTORY)
      .build();

  public void run() throws Exception {
    Request washingtonPostRequest = new Request.Builder()
        .url("https://www.washingtonpost.com/")