Normally you use:

* `POST`: to create data.
* `GET`: to read data.
* `PUT`: to update data.
* `DELETE`: to delete data.

So, in OpenAPI, each of the HTTP methods is called an "operation".

We are going to call them "**operations**" too.

#### Define a *path operation decorator*

```Python hl_lines="6"

    ...


@app.get("/items/{item_id}")
def read_item(*, user: User = Depends(get_current_user), item_id: int):
    ...


@app.delete("/items/{item_id}")
def delete_item(*, user: User = Depends(get_current_user), item_id: int):
    ...
```

There's a bit of code duplication for the dependency:

```Python
user: User = Depends(get_current_user)

* Automatic data model documentation with <a href="https://json-schema.org/" class="external-link" target="_blank"><strong>JSON Schema</strong></a> (as OpenAPI itself is based on JSON...