When defining WebSockets, you normally declare a parameter of type `WebSocket` and with it you can read data from the client and send data to it.

Read more about it in the [FastAPI docs for WebSockets](https://fastapi.tiangolo.com/advanced/websockets/)

It is provided directly by Starlette, but you can import it from `fastapi`:

```python
from fastapi import WebSocket
```

/// tip

            if (this.s != null) {
                _dst = _dst.deferred;
                final int _ss = this.count;
                _dst.enc_ndr_long(_ss);
                final int _si = _dst.index;
                _dst.advance(4 * _ss);

                _dst = _dst.derive(_si);
                for (int _i = 0; _i < _ss; _i++) {
                    this.s[_i].encode(_dst);
                }
            }
        }

  public void testAdvance() {
    FakeTicker ticker = new FakeTicker();
    assertEquals(0, ticker.read());
    assertThat(ticker.advance(10)).isSameInstanceAs(ticker);
    assertEquals(10, ticker.read());
    ticker.advance(1, MILLISECONDS);
    assertEquals(1000010L, ticker.read());
    ticker.advance(Duration.ofMillis(1));
    assertEquals(2000010L, ticker.read());
  }

  public void testAutoIncrementStep_returnsSameInstance() {

You can read more about this in the [Advanced User Guide](../advanced/index.md).

## Details { #details }

The first `"/static"` refers to the sub-path this "sub-application" will be "mounted" on. So, any path that starts with `"/static"` will be handled by it.

            if (s != null) {
                _dst = _dst.deferred;
                final int _ss = count;
                _dst.enc_ndr_long(_ss);
                final int _si = _dst.index;
                _dst.advance(4 * _ss);

                _dst = _dst.derive(_si);
                for (int _i = 0; _i < _ss; _i++) {
                    s[_i].encode(_dst);
                }
            }
        }

# Sécurité avancée { #advanced-security }

## Fonctionnalités supplémentaires { #additional-features }

Il existe des fonctionnalités supplémentaires pour gérer la sécurité en plus de celles couvertes dans le [Tutoriel - Guide utilisateur : Sécurité](../../tutorial/security/index.md).

/// tip | Astuce

Les sections suivantes **ne sont pas nécessairement « advanced »**.

* 📝 Update includes in `docs/fr/docs/advanced/additional-responses.md`. PR [#12634](https://github.com/fastapi/fastapi/pull/12634) by [@fegmorte](https://github.com/fegmorte).
* 📝 Update includes in `docs/fr/docs/advanced/path-operation-advanced-configuration.md`. PR [#12633](https://github.com/fastapi/fastapi/pull/12633) by [@kantandane](https://github.com/kantandane).

        this.parent = parent;
        this.delegate = delegate;
        this.filter = filter;
        this.next = advance();
    }

    /**
     * @return next element
     */
    private SmbResource advance() {
        while (this.delegate.hasNext()) {
            final FileEntry n = this.delegate.next();
            if (this.filter == null) {
                try {

        this.delegate = delegate;
        this.filter = filter;
        this.next = advance();
    }

    /**
     * @return the parent
     */
    protected final SmbResource getParent() {
        return this.parent;
    }

    /**
     * @return
     *
     */
    private SmbResource advance() {
        while (this.delegate.hasNext()) {
            final FileEntry fe = this.delegate.next();

	scanner := bufio.NewScanner(strings.NewReader(input))
	// Create a custom split function by wrapping the existing ScanWords function.
	split := func(data []byte, atEOF bool) (advance int, token []byte, err error) {
		advance, token, err = bufio.ScanWords(data, atEOF)
		if err == nil && token != nil {
			_, err = strconv.ParseInt(string(token), 10, 32)
		}
		return
	}