You can use the same dependency overrides from [Testing Dependencies with Overrides](testing-dependencies.md){.internal-link target=_blank} to alter a database for testing.

You could want to set up a different database for testing, rollback the data after the tests, pre-fill it with some testing data, etc.

The main idea is exactly the same you saw in that previous chapter.

You can use the same type declarations with `str`, `float`, `bool` and many other complex data types.

Several of these are explored in the next chapters of the tutorial.

## Order matters

When creating *path operations*, you can find situations where you have a fixed path.

Like `/users/me`, let's say that it's to get data about the current user.

### Notice the `response_model=List[Note]`

It uses `typing.List`.

That documents (and validates, serializes, filters) the output data, as a `list` of `Note`s.

## Create notes

Create the *path operation function* to create notes:

```Python hl_lines="61-65"
{!../../../docs_src/async_sql_databases/tutorial001.py!}
```

Se você precisar fazer isso, edite o `mkdocs.yml` para sua nova linguagem, teremos algo como:

```YAML hl_lines="5"
site_name: FastAPI
# Mais coisas
theme:
  # Mais coisas
  language: xx
```

Altere essa linguagem de `xx` (do seu código de linguagem) para `en`.

Então você poderá iniciar novamente o _servidor ao vivo_.

#### Pré-visualize o resultado

* Add section about [helping and getting help with **FastAPI**](https://fastapi.tiangolo.com/help-fastapi/).

* Add note about [path operations order in docs](https://fastapi.tiangolo.com/tutorial/path-params/#order-matters).

Erstellen Sie einen PassLib-„Kontext“. Der wird für das Hashen und Verifizieren von Passwörtern verwendet.

!!! tip "Tipp"
    Der PassLib-Kontext kann auch andere Hashing-Algorithmen verwenden, einschließlich deprecateter Alter, um etwa nur eine Verifizierung usw. zu ermöglichen.