<div class="termy">

```console
$ fastapi dev main.py

<span style="color: green;">INFO</span>:     Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)
```

</div>

Open your browser at <a href="http://127.0.0.1:8000" class="external-link" target="_blank">http://127.0.0.1:8000</a>.

You will see a simple page like:

<img src="/img/tutorial/websockets/image01.png">

// the directory itself, if the dirPath doesn't exist this function doesn't return
// an error.
func readDirFn(dirPath string, filter func(name string, typ os.FileMode) error) error {
	d, err := Open(dirPath)
	if err != nil {
		if osErrToFileErr(err) == errFileNotFound {
			return nil
		}
		return osErrToFileErr(err)
	}
	defer d.Close()

	maxEntries := 1000
	for {

 */
@ExperimentalOkHttpApi
sealed interface SocketPolicy {
  /**
   * Shutdown [MockWebServer] after writing response.
   */
  object ShutdownServerAfterResponse : SocketPolicy

  /**
   * Keep the socket open after the response. This is the default HTTP/1.1 behavior.
   */
  object KeepOpen : SocketPolicy

  /**
   * Close the socket after the response. This is the default HTTP/1.0 behavior. For HTTP/2

# Default values for min/max heap memory allocated to fess java process
packaging.fess.heap.min=256m
packaging.fess.heap.max=1g

# Specifies the maximum file descriptor number
packaging.os.max.open.files=65535

# Maximum number of VMA (Virtual Memory Areas) a process can own
packaging.os.max.map.count=262144

# Simple marker to check that properties are correctly overridden
packaging.type=tar.gz

 * or implied. See the License for the specific language governing permissions and limitations under
 * the License.
 */

/**
 * Annotation types. This package is a part of the open-source <a
 * href="https://github.com/google/guava">Guava</a> library.
 */

def test_events(app: FastAPI):
    with TestClient(app) as client:
        response = client.get("/items/")
        assert response.status_code == 200, response.text
        assert response.json() == [{"name": "Foo"}]
    with open("log.txt") as log:
        assert "Application shutdown" in log.read()


def test_openapi_schema(app: FastAPI):
    with TestClient(app) as client:
        response = client.get("/openapi.json")

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/**
 * Testing utilities. This package is a part of the open-source <a
 * href="https://github.com/google/guava">Guava</a> library.
 */
@com.google.errorprone.annotations.CheckReturnValue
@javax.annotation.ParametersAreNonnullByDefault

    @Override
    protected int doSendReceiveFragment ( byte[] buf, int off, int length, byte[] inB ) throws IOException {
        if ( this.handle.isStale() ) {
            throw new IOException("DCERPC pipe is no longer open");
        }

        int have = this.handle.sendrecv(buf, off, length, inB, getMaxRecv());

        int fraglen = Encdec.dec_uint16le(inB, 8);
        if ( fraglen > getMaxRecv() ) {

 *       that we could probably work around. Or we could manually strip the test from open-source
 *       Guava while continuing to run it internally, as we do with many other tests. This would
 *       suffice because we our Android users and tests are using the open-source version, which
 *       would no longer have the problematic test. But why bother when we can instead strip it with

 * limitations under the License.
 */
package okhttp3

import kotlin.test.assertEquals
import kotlin.test.assertFailsWith
import okhttp3.MediaType.Companion.toMediaType

open class MediaTypeGetTest : MediaTypeTest() {
  override fun parse(string: String): MediaType = string.toMediaType()

  override fun assertInvalid(
    string: String,
    exceptionMessage: String?,
  ) {
    val e =