* API作成のための<a href="https://github.com/OAI/OpenAPI-Specification" class="external-link" target="_blank"><strong>OpenAPI</strong></a>。これは、<abbr title="also known as: endpoints, routes">path</abbr> <abbr title="also known as HTTP methods, as POST, GET, PUT, DELETE">operations</abbr>の宣言、パラメータ、ボディリクエスト、セキュリティなどを含んでいます。
* <a href="http://json-schema.org/" class="external-link" target="_blank"><strong>JSONスキーマ</strong></a>を使用したデータモデルのドキュメント自動生成（OpenAPIはJSONスキーマに基づいている）。

### Small Errors Automatically Handled

When building web APIs with FastAPI, if there's an error in our code, FastAPI will normally contain it to the single request that triggered the error. 🛡

The client will get a **500 Internal Server Error** for that request, but the application will continue working for the next requests instead of just crashing completely.

### Bigger Errors - Crashes

      MockResponse.Builder()
        .webSocketUpgrade(serverListener)
        .build(),
    )
    val webSocket: WebSocket = newWebSocket()
    clientListener.assertOpen()
    assertThat(interceptedCount.get()).isEqualTo(1)
    closeWebSockets(webSocket, serverListener.assertOpen())
  }

  @Test
  fun webSocketAndNetworkInterceptors() {
    client =
      client.newBuilder()
        .addNetworkInterceptor(

		if !generatesZip64(t, gen(0xffff)) {
			t.Error("expected zip64")
		}
	})
}

// suffixSaver is an io.Writer & io.ReaderAt that remembers the last 0
// to 'keep' bytes of data written to it. Call Suffix to get the
// suffix bytes.
type suffixSaver struct {
	keep  int
	buf   []byte
	start int
	size  int64
}

func (ss *suffixSaver) Size() int64 { return ss.size }

```Python
results = await some_library()
```

Dann deklarieren Sie Ihre *Pfadoperation-Funktionen* mit `async def` wie in:

```Python hl_lines="2"
@app.get('/')
async def read_results():
    results = await some_library()
    return results
```

/// note

Sie können `await` nur innerhalb von Funktionen verwenden, die mit `async def` erstellt wurden.

///

	globalPublicCerts, globalTLSCerts, globalIsTLS, err = getTLSConfig()
	logger.FatalIf(err, "Unable to load the TLS configuration")

	// Check and load Root CAs.
	globalRootCAs, err = certs.GetRootCAs(globalCertsCADir.Get())
	logger.FatalIf(err, "Failed to read root CAs (%v)", err)

	// Add the global public crts as part of global root CAs
	for _, publicCrt := range globalPublicCerts {
		globalRootCAs.AddCert(publicCrt)
	}

    @Secured({ ROLE, ROLE + VIEW })
    public HtmlResponse list(final OptionalThing<Integer> pageNumber, final SearchForm form) {
        pageNumber.ifPresent(num -> {
            badWordPager.setCurrentPageNumber(pageNumber.get());
        }).orElse(() -> {
            badWordPager.setCurrentPageNumber(0);
        });
        return asHtml(path_AdminBadword_AdminBadwordJsp).renderWith(data -> {
            searchPaging(data, form);

 *
 *  * **b2a**: b2 + 0x80
 *  * **b3a**: b3 + 0x80
 *  * **b2b3**: (b2 << 7) + b3
 *
 * b0
 * --
 *
 * The inclusive start of the range. We get the first 14 bits of this code point from the section
 * and the last 7 bits from this byte.
 *
 * The end of the range is not encoded, but can be inferred by looking at the start of the range
 * that follows.
 *
 * b1

	if err := target.init(); err != nil {
		return err
	}

	ch, confirms, err := target.channel()
	if err != nil {
		return err
	}
	defer ch.Close()

	eventData, eErr := target.store.Get(key)
	if eErr != nil {
		// The last event key in a successful batch will be sent in the channel atmost once by the replayEvents()
		// Such events will not exist and wouldve been already been sent successfully.

	}
	return xh.Name, xh.Port.String()
}

// mustGetLocalIPs returns IPs of local interface
func mustGetLocalIPs() (ipList []net.IP) {
	ifs, err := net.Interfaces()
	logger.FatalIf(err, "Unable to get IP addresses of this host")

	for _, interf := range ifs {
		addrs, err := interf.Addrs()
		if err != nil {
			continue
		}
		if runtime.GOOS == "windows" && interf.Flags&net.FlagUp == 0 {
			continue
		}