address = ":9999"

[providers]
  [providers.file]
    filename = "routes.toml"
```

This tells Traefik to listen on port 9999 and to use another file `routes.toml`.

!!! tip
    We are using port 9999 instead of the standard HTTP port 80 so that you don't have to run it with admin (`sudo`) privileges.

Now create that other file `routes.toml`:

```TOML hl_lines="5  12  20"
[http]
  [http.middlewares]

* ⬆ Bump dawidd6/action-download-artifact from 3.0.0 to 3.1.4. PR [#11310](https://github.com/tiangolo/fastapi/pull/11310) by [@dependabot[bot]](https://github.com/apps/dependabot).
* ♻️ Refactor computing FastAPI People, include 3 months, 6 months, 1 year, based on comment date, not discussion date. PR [#11304](https://github.com/tiangolo/fastapi/pull/11304) by [@tiangolo](https://github.com/tiangolo).

```Python hl_lines="35"
{!../../../docs_src/openapi_callbacks/tutorial001.py!}
```

!!! tip
    Notice that you are not passing the router itself (`invoices_callback_router`) to `callback=`, but the attribute `.routes`, as in `invoices_callback_router.routes`.

### Check the docs

### Based on open standards

* <a href="https://github.com/OAI/OpenAPI-Specification" class="external-link" target="_blank"><strong>OpenAPI</strong></a> for API creation, including declarations of <abbr title="also known as: endpoints, routes">path</abbr> <abbr title="also known as HTTP methods, as POST, GET, PUT, DELETE">operations</abbr>, parameters, body requests, security, etc.

- login: fabianfalon
  count: 2
  avatarUrl: https://avatars.githubusercontent.com/u/3700760?u=95f69e31280b17ac22299cdcd345323b142fe0af&v=4
  url: https://github.com/fabianfalon
three_months_experts:
- login: YuriiMotov
  count: 75
  avatarUrl: https://avatars.githubusercontent.com/u/109919500?u=e83a39697a2d33ab2ec9bfbced794ee48bc29cec&v=4
  url: https://github.com/YuriiMotov
- login: Kludex
  count: 31

</a>
</p>

---

**Documentação**: <a href="https://fastapi.tiangolo.com" target="_blank">https://fastapi.tiangolo.com</a>

**Código fonte**: <a href="https://github.com/tiangolo/fastapi" target="_blank">https://github.com/tiangolo/fastapi</a>

---

    只需要 [帮助他人解决 GitHub 上的问题](help-fastapi.md#github_1){.internal-link target=_blank}。 🤓

你可以查看不同时期的 **FastAPI 专家**：

* [上个月](#fastapi-experts-last-month) 🤓
* [三个月](#fastapi-experts-3-months) 😎
* [六个月](#fastapi-experts-6-months) 🧐
* [一年](#fastapi-experts-1-year) 🧑‍🔬
* [**全部时间**](#fastapi-experts-all-time) 🧙

## FastAPI 专家 - 上个月