///

**FastAPI** được dựa hoàn toàn trên Pydantic.

Bạn sẽ thấy nhiều ví dụ thực tế hơn trong [Hướng dẫn sử dụng](tutorial/index.md){.internal-link target=_blank}.

/// tip

///

**FastAPI** is volledig gebaseerd op Pydantic.

Je zult veel meer van dit alles in de praktijk zien in de [Tutorial - Gebruikershandleiding](tutorial/index.md){.internal-link target=_blank}.

/// tip

    )
  }

  private fun newChain(call: RealCall): RealInterceptorChain {
    return RealInterceptorChain(
      call = call,
      interceptors = listOf(),
      index = 0,
      exchange = null,
      request = call.request(),
      connectTimeoutMillis = 10_000,
      readTimeoutMillis = 10_000,
      writeTimeoutMillis = 10_000,
    )
  }

  companion object {

		t.Fatal(err)
	}
	if err := w.Close(); err != nil {
		t.Fatal(err)
	}
	b := buf.Bytes()

	var sig [4]byte
	binary.LittleEndian.PutUint32(sig[:], uint32(fileHeaderSignature))

	idx := bytes.Index(b, sig[:])
	if idx == -1 {
		t.Fatal("file header not found")
	}
	b = b[idx:]

	if !bytes.Equal(b[6:10], []byte{0, 0, 0, 0}) { // FileHeader.Flags: 0, FileHeader.Method: 0

labels.crawling_info_WebFsIndexSize=Index size (Web/File system)
labels.crawling_info_DataCrawlExecTime=Crawl exec time (Data store)
labels.crawling_info_DataCrawlStartTime=Crawl start time (Data store)
labels.crawling_info_DataCrawlEndTime=Crawl end time (Data store)
labels.crawling_info_DataIndexExecTime=Indexing exec time (Data store)
labels.crawling_info_DataIndexSize=Index size (Data store)

import org.codelibs.fess.helper.SystemHelper;
import org.codelibs.fess.mylasta.direction.FessConfig;
import org.codelibs.fess.util.ComponentUtil;
import org.lastaflute.di.core.SingletonLaContainer;
import org.opensearch.index.query.QueryBuilders;

public class FileListIndexUpdateCallbackImpl implements IndexUpdateCallback {
    private static final Logger logger = LogManager.getLogger(FileListIndexUpdateCallbackImpl.class);

<img src="/img/tutorial/dependencies/image02.png">

## Abkürzung

Aber Sie sehen, dass wir hier etwas Codeduplizierung haben, indem wir `CommonQueryParams` zweimal schreiben:

//// tab | Python 3.8+

```Python
commons: Annotated[CommonQueryParams, Depends(CommonQueryParams)]
```

////

//// tab | Python 3.8+ nicht annotiert

place:function(){if(!this.isInline){var c=this.$widget.outerWidth(),d=this.$widget.outerHeight(),e=10,f=a(b).width(),g=a(b).height(),h=a(b).scrollTop(),i=parseInt(this.$element.parents().filter(function(){return"auto"!==a(this).css("z-index")}).first().css("z-index"),10)+10,j=this.component?this.component.parent().offset():this.$element.offset(),k=this.component?this.component.outerHeight(!0):this.$element.outerHeight(!1),l=this.component?this.component.outerWidth(!0):this.$element.outerWidth(!1...

Pydanticについてより学びたい方は<a href="https://docs.pydantic.dev/" class="external-link" target="_blank">ドキュメントを参照してください</a>.

///

**FastAPI** はすべてPydanticをベースにしています。

すべてのことは[チュートリアル - ユーザーガイド](tutorial/index.md){.internal-link target=_blank}で実際に見ることができます。

## **FastAPI**での型ヒント

**FastAPI** はこれらの型ヒントを利用していくつかのことを行います。

**FastAPI** では型ヒントを使って型パラメータを宣言すると以下のものが得られます:

* **エディタサポート**.
* **型チェック**.

// internal buffer only needs to be resliced.
// It returns the index where bytes should be written and whether it succeeded.
func (b *Buffer) tryGrowByReslice(n int) (int, bool) {
	if l := len(b.buf); n <= cap(b.buf)-l {
		b.buf = b.buf[:l+n]
		return l, true
	}
	return 0, false
}

// grow grows the buffer to guarantee space for n more bytes.
// It returns the index where bytes should be written.