</div>
{% endif %}

There are many other contributors (more than a hundred), you can see them all in the <a href="https://github.com/tiangolo/fastapi/graphs/contributors" class="external-link" target="_blank">FastAPI GitHub Contributors page</a>. 👷

## Top Translation Reviewers

These users are the **Top Translation Reviewers**. 🕵️

O **FastAPI** sabe o que fazer em cada caso e como reutilizar o mesmo objeto, de forma que todas as tarefas em segundo plano sejam mescladas e executadas em segundo plano posteriormente:

```Python hl_lines="13  15  22  25"

```

!!! tip
    If you were connecting to a different database (e.g. PostgreSQL), you would need to change the `DATABASE_URL`.

## Create the tables

In this case, we are creating the tables in the same Python file, but in production, you would probably want to create them with Alembic, integrated with migrations, etc.

Here, this section would run directly, right before starting your **FastAPI** application.

{% endif %}

На самом деле таких людей довольно много (более сотни), вы можете увидеть всех на этой странице <a href="https://github.com/tiangolo/fastapi/graphs/contributors" class="external-link" target="_blank">FastAPI GitHub Contributors page</a>. 👷

## Рейтинг ревьюеров

Здесь представлен **Рейтинг ревьюеров**. 🕵️

### Проверки переводов на другие языки

Я знаю не очень много языков (и не очень хорошо 😅).

    {{ config.site_name }}

  # Page title
  - &page_title >-
    {{ page.meta.get("title", page.title) }}

  # Page title with site name
  - &page_title_with_site_name >-
    {%- if not page.is_homepage -%}
      {{ page.meta.get("title", page.title) }} - {{ config.site_name }}
    {%- else -%}
      {{ page.meta.get("title", page.title) }}
    {%- endif -%}

  # Page description
  - &page_description >-

<img src="/img/tutorial/websockets/image04.png">

And all of them will use the same WebSocket connection.

## Using `Depends` and others

In WebSocket endpoints you can import from `fastapi` and use:

* `Depends`
* `Security`
* `Cookie`
* `Header`
* `Path`
* `Query`

They work the same way as for other FastAPI endpoints/*path operations*:

=== "Python 3.10+"

async function getDataBatch(page) {
    const response = await fetch(`https://api.github.com/search/repositories?q=topic:fastapi&per_page=100&page=${page}`, { headers: { Accept: 'application/vnd.github.mercy-preview+json' } })
    const data = await response.json()
    return data
}

async function getData() {
    let page = 1
    let data = []
    let dataBatch = await getDataBatch(page)
    data = data.concat(dataBatch.items)

query_extractor --> query_or_cookie_extractor --> read_query
```

## Using the same dependency multiple times

If one of your dependencies is declared multiple times for the same *path operation*, for example, multiple dependencies have a common sub-dependency, **FastAPI** will know to call that sub-dependency only once per request.

http://127.0.0.1:8000/items/
```

would be the same as going to:

```
http://127.0.0.1:8000/items/?skip=0&limit=10
```

But if you go to, for example:

```
http://127.0.0.1:8000/items/?skip=20
```

The parameter values in your function will be:

* `skip=20`: because you set it in the URL
* `limit=10`: because that was the default value

## Optional parameters

    !!! tip
        Prefer to use the `Annotated` version if possible.

    ```Python hl_lines="17"
    {!> ../../../docs_src/dependencies/tutorial006.py!}
    ```

These dependencies will be executed/solved the same way as normal dependencies. But their value (if they return any) won't be passed to your *path operation function*.

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