```

Az önce oluşturduğumuz API:

* `/` ve `/items/{item_id}` <abbr title="Adres / Yol: Path ">_yollarına_</abbr> HTTP isteği alabilir.
* İki _yolda_ `GET` operasyonlarını (HTTP _metodları_ olarak da bilinen) kabul ediyor.
* `/items/{item_id}` _yolu_ `item_id` adında bir _yol parametresine_ sahip ve bu parametre `int` değer almak zorundadır.

/// tip

If you have strict type checks in your editor, mypy, etc, you can declare the function return type as `Any`.

That way you tell the editor that you are intentionally returning anything. But FastAPI will still do the data documentation, validation, filtering, etc. with the `response_model`.

///

<img src="/img/tutorial/body/image01.png">

And will also be used in the API docs inside each *path operation* that needs them:

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

## Editor support { #editor-support }

In your editor, inside your function you will get type hints and completion everywhere (this wouldn't happen if you received a `dict` instead of a Pydantic model):

<img src="/img/tutorial/body/image03.png">

I tested several ideas in the most popular Python editors: PyCharm, VS Code, Jedi based editors.

By the last <a href="https://www.jetbrains.com/research/python-developers-survey-2018/#development-tools" class="external-link" target="_blank">Python Developer Survey</a>, that covers about 80% of the users.

You will rarely need to come back to the docs.

Here's how your editor might help you:

* in <a href="https://code.visualstudio.com/" class="external-link" target="_blank">Visual Studio Code</a>:

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

* in <a href="https://www.jetbrains.com/pycharm/" class="external-link" target="_blank">PyCharm</a>:

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

///

By doing that, your editor can provide support even while processing items from the list:

<img src="/img/python-types/image05.png">

Without types, that's almost impossible to achieve.

Notice that the variable `item` is one of the elements in the list `items`.

And still, the editor knows it is a `str`, and provides support for that.

    * Python tiplərinin (`str`, `int`, `float`, `bool`, `list`, və s) çevrilməsi.
    * `datetime` obyektləri.
    * `UUID` obyektləri.
    * Verilənlər bazası modelləri.
    * və daha çoxu...
* 2 alternativ istifadəçi interfeysi daxil olmaqla avtomatik interaktiv API sənədlərini təmin edir:
    * Swagger UI.
    * ReDoc.

---

/// tip

Some editors check for unused function parameters, and show them as errors.

Using these `dependencies` in the *path operation decorator* you can make sure they are executed while avoiding editor/tooling errors.

```Python
commons = Depends(CommonQueryParams)
```

////

...as in:

{* ../../docs_src/dependencies/tutorial003_an_py310.py hl[19] *}

But declaring the type is encouraged as that way your editor will know what will be passed as the parameter `commons`, and then it can help you with code completion, type checks, etc:

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

## Shortcut { #shortcut }

    var editor: DiskLruCache.Editor? = null
    try {
      editor = snapshot.edit() ?: return // edit() returns null if snapshot is not current.
      entry.writeTo(editor)
      editor.commit()
    } catch (_: IOException) {
      abortQuietly(editor)
    }
  }

  private fun abortQuietly(editor: DiskLruCache.Editor?) {
    // Give up because the cache cannot be written.