API sistemlerine gereken ana özelliklerden biri de koddan veriyi alıp ağ üzerinde gönderilebilecek bir şeye çevirmek, yani veri <abbr title="Dönüşüm: serialization, marshalling olarak da biliniyor">dönüşümü</abbr>. Bu işleme veritabanındaki veriyi içeren bir objeyi JSON objesine çevirmek, `datetime` objelerini metinlere çevirmek gibi örnekler verilebilir.

///

## Importez le `BaseModel` de Pydantic

Commencez par importer la classe `BaseModel` du module `pydantic` :

{* ../../docs_src/body/tutorial001.py hl[4] *}

## Créez votre modèle de données

Déclarez ensuite votre modèle de données en tant que classe qui hérite de `BaseModel`.

Utilisez les types Python standard pour tous les attributs :

	Isso ocorre porque o **OAuth2** usa "dados de um formulário" para mandar o **username** e **senha**.

Execute esse exemplo com:

<div class="termy">

```console
$ uvicorn main:app --reload

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

</div>

## Verifique-o

# LDAP attribute for description.
ldap.attr.description=description
# LDAP attribute for title.
ldap.attr.title=title
# LDAP attribute for pager.
ldap.attr.pager=pager
# LDAP attribute for street.
ldap.attr.street=street
# LDAP attribute for postal code.
ldap.attr.postalCode=postalCode
# LDAP attribute for physical delivery office name.
ldap.attr.physicalDeliveryOfficeName=physicalDeliveryOfficeName

Esto se debe a que **OAuth2** utiliza "form data" para enviar el `username` y `password`.

///

Ejecuta el ejemplo con:

<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>

## Revisa

// If final is not provided the folders found are returned from the function.
func (f *folderScanner) scanFolder(ctx context.Context, folder cachedFolder, into *dataUsageEntry) error {
	done := ctx.Done()
	scannerLogPrefix := color.Green("folder-scanner:")

	noWait := func() {}

	thisHash := hashPath(folder.name)
	// Store initial compaction state.
	wasCompacted := into.Compacted

	for {
		select {
		case <-done:

```

...ve editörünün veri tiplerini bildiğini ve otomatik tamamladığını göreceksiniz:

![editor support](https://fastapi.tiangolo.com/img/vscode-completion.png)

Daha fazal özellik içeren, daha eksiksiz bir örnek için <a href="https://fastapi.tiangolo.com/tr/tutorial/">Öğretici - Kullanıcı Rehberi</a> sayfasını ziyaret edebilirsin.

**Spoiler**: Öğretici - Kullanıcı rehberi şunları içerir:

labels.user_roomNumber=房間號
labels.roomNumber=房間號
labels.user_description=描述
labels.description=描述
labels.user_title=職位
labels.title=職位
labels.user_pager=尋呼機
labels.pager=尋呼機
labels.user_street=街道
labels.street=街道
labels.user_postalCode=郵政編碼
labels.postalCode=郵政編碼
labels.user_physicalDeliveryOfficeName=辦公室
labels.physicalDeliveryOfficeName=辦公室
labels.user_destinationIndicator=電報服務地址資訊
labels.destinationIndicator=電報服務地址資訊

angedTouches:!0,ctrlKey:!0,detail:!0,eventPhase:!0,metaKey:!0,pageX:!0,pageY:!0,shiftKey:!0,view:!0,"char":!0,code:!0,charCode:!0,key:!0,keyCode:!0,button:!0,buttons:!0,clientX:!0,clientY:!0,offsetX:!0,offsetY:!0,pointerId:!0,pointerType:!0,screenX:!0,screenY:!0,targetTouches:!0,toElement:!0,touches:!0,which:!0},ce.event.addProp),ce.each({focus:"focusin",blur:"focusout"},function(r,i){function o(e){if(C.documentMode){var t=_.get(this,"handle"),n=ce.event.fix(e);n.type="focusin"===e.type?"focus":...

<div class="termy">

```console
$ ADMIN_EMAIL="******@****.***" APP_NAME="ChimichangApp" fastapi run main.py

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

</div>

/// tip