items = crud.get_items(skip=skip, limit=limit)
    return items


@app.get(
    "/slowusers/", response_model=List[schemas.User], dependencies=[Depends(get_db)]
)
def read_slow_users(skip: int = 0, limit: int = 100):
    global sleep_time
    sleep_time = max(0, sleep_time - 1)
    time.sleep(sleep_time)  # Fake long processing request
    users = crud.get_users(skip=skip, limit=limit)

* Email notifications sent after performing an action:
    * As connecting to an email server and sending an email tends to be "slow" (several seconds), you can return the response right away and send the email notification in the background.
* Processing data:
    * For example, let's say you receive a file that must go through a slow process, you can return a response of "Accepted" (HTTP 202) and process it in the background.

## Using `BackgroundTasks`

Böylece, bu süreçte bilgisayar "slow-file" 📝 tamamlanırken gidip başka işler yapabilir.

Sonra bilgisayar / program 🤖 her fırsatı olduğunda o noktada yaptığı tüm işleri 🤖 bitirene kadar geri dönücek. Ve 🤖 yapması gerekeni yaparak, beklediği görevlerden herhangi birinin bitip bitmediğini görecek.

So, during that time, the computer can go and do some other work, while "slow-file" 📝 finishes.

You could load it at the top level of the module/file, but that would also mean that it would **load the model** even if you are just running a simple automated test, then that test would be **slow** because it would have to wait for the model to load before being able to run an independent part of the code.

    url: https://github.com/tiangolo/fastapi/discussions/categories/questions
  - name: Show and tell
    about: Show what you built with FastAPI or to be used with FastAPI.
    url: https://github.com/tiangolo/fastapi/discussions/categories/show-and-tell
  - name: Translations
    about: Coordinate translations in GitHub Discussions.

class OAuth2PasswordRequestForm:
    """
    This is a dependency class to collect the `username` and `password` as form data
    for an OAuth2 password flow.

    The OAuth2 specification dictates that for a password flow the data should be
    collected using form data (instead of JSON) and that it should have the specific
    fields `username` and `password`.

# Benchmarks

Independent TechEmpower benchmarks show **FastAPI** applications running under Uvicorn as <a href="https://www.techempower.com/benchmarks/#section=test&runid=7464e520-0dc2-473d-bd34-dbdfd7e85911&hw=ph&test=query&l=zijzen-7" class="external-link" target="_blank">one of the fastest Python frameworks available</a>, only below Starlette and Uvicorn themselves (used internally by FastAPI).

          name: coverage
          path: coverage
      - run: pip install coverage[toml]
      - run: ls -la coverage
      - run: coverage combine coverage
      - run: coverage report
      - run: coverage html --show-contexts --title "Coverage for ${{ github.sha }}"
      - name: Store coverage HTML
        uses: actions/upload-artifact@v3
        with:
          name: coverage-html
          path: htmlcov

But I'll show you how to improve that next. 🤓

## Custom Operation IDs and Better Method Names

You can **modify** the way these operation IDs are **generated** to make them simpler and have **simpler method names** in the clients.