Or it might be the case that you just prefer to take other courses because they adapt better to your learning style.

Some course providers ✨ [**sponsor FastAPI**](../help-fastapi.md#sponsor-the-author){.internal-link target=_blank} ✨, this ensures the continued and healthy **development** of FastAPI and its **ecosystem**.

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"_Honestly, what you've built looks super solid and polished. In many ways, it's what I wanted **Hug** to be - it's really inspiring to see someone build that._"

* Etkileşimli API dokümantasyonu, yeni gövdede dahil olmak üzere otomatik olarak güncellenmiş olacak:

![Swagger UI](https://fastapi.tiangolo.com/img/index/index-03-swagger-02.png)

* "Try it out" butonuna tıklayalım, bu işlem API parametleri üzerinde değişiklik yapmamıza ve doğrudan API ile etkileşime geçmemize imkan sağlayacak:

![Swagger UI interaction](https://fastapi.tiangolo.com/img/index/index-04-swagger-03.png)

* La documentation interactive de l'API sera automatiquement mise à jour, y compris le nouveau corps de la requête :

![Swagger UI](https://fastapi.tiangolo.com/img/index/index-03-swagger-02.png)

* Cliquez sur le bouton "Try it out", il vous permet de renseigner les paramètres et d'interagir directement avec l'API :

![Swagger UI interaction](https://fastapi.tiangolo.com/img/index/index-04-swagger-03.png)

# Deployment

Deploying a **FastAPI** application is relatively easy.

## What Does Deployment Mean

To **deploy** an application means to perform the necessary steps to make it **available to the users**.

For a **web API**, it normally involves putting it in a **remote machine**, with a **server program** that provides good performance, stability, etc, so that your **users** can **access** the application efficiently and without interruptions or problems.

* Validate that the `item_id` is of type `int` for `GET` and `PUT` requests.
    * If it is not, the client will see a useful, clear error.
* Check if there is an optional query parameter named `q` (as in `http://127.0.0.1:8000/items/foo?q=somequery`) for `GET` requests.
    * As the `q` parameter is declared with `= None`, it is optional.
    * Without the `None` it would be required (as is the body in the case with `PUT`).

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"_Honestly, what you've built looks super solid and polished. In many ways, it's what I wanted **Hug** to be - it's really inspiring to see someone build that._"

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<div style="text-align: left; direction: ltr;">"Honestly, what you've built looks super solid and polished. In many ways, it's what I wanted <strong>Hug</strong> to be - it's really inspiring to see someone build that."</div>

* Die interaktive API-Dokumentation wird automatisch aktualisiert, einschließlich des neuen Bodys:

![Swagger UI](https://fastapi.tiangolo.com/img/index/index-03-swagger-02.png)

* Klicken Sie auf die Taste „Try it out“, damit können Sie die Parameter ausfüllen und direkt mit der API interagieren:

![Swagger UI Interaktion](https://fastapi.tiangolo.com/img/index/index-04-swagger-03.png)

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"_Honestly, what you've built looks super solid and polished. In many ways, it's what I wanted **Hug** to be - it's really inspiring to see someone build that._"