title: FastAPI + Zeit.co = 🚀
  - author: cuongld2
    author_link: https://dev.to/cuongld2
    link: https://dev.to/cuongld2/build-simple-api-service-with-python-fastapi-part-1-581o
    title: Build simple API service with Python FastAPI — Part 1
  - author: Paurakh Sharma Humagain
    author_link: https://twitter.com/PaurakhSharma

| `description` | `str` | Eine kurze Beschreibung der API. Kann Markdown verwenden. |
| `version` | `string` | Die Version der API. Das ist die Version Ihrer eigenen Anwendung, nicht die von OpenAPI. Zum Beispiel `2.5.0`. |
| `terms_of_service` | `str` | Eine URL zu den Nutzungsbedingungen für die API. Falls angegeben, muss es sich um eine URL handeln. |

                """
            ),
        ] = None,
        terms_of_service: Annotated[
            Optional[str],
            Doc(
                """
                A URL to the Terms of Service for your API.

                It will be added to the generated OpenAPI (e.g. visible at `/docs`).

                Read more at the

                <mxCell id="32" value="" style="pointerEvents=1;shadow=0;dashed=0;html=1;fillColor=#505050;labelPosition=center;verticalLabelPosition=bottom;verticalAlign=top;outlineConnect=0;align=center;shape=mxgraph.office.devices.laptop;strokeColor=none;" parent="33" vertex="1">
                    <mxGeometry width="500" height="350" as="geometry"/>
                </mxCell>

* Güvenlik ve kimlik doğrulama, **JWT tokenleri** ile **OAuth2** desteği, ve **HTTP Basic** doğrulaması.
* İleri seviye fakat bir o kadarda basit olan **çok derin JSON modelleri** (Pydantic sayesinde).
* **GraphQL** entegrasyonu: <a href="https://strawberry.rocks" class="external-link" target="_blank">Strawberry</a> ve diğer kütüphaneleri kullanarak.

<a href="https://www.svix.com/" target="_blank" title="Svix - Webhooks as a service"><img src="https://fastapi.tiangolo.com/img/sponsors/svix.svg"></a>

## Deployment Strategies

There are several ways to do it depending on your specific use case and the tools that you use.

You could **deploy a server** yourself using a combination of tools, you could use a **cloud service** that does part of the work for you, or other possible options.

### Anwendungsfälle: Externer Service

Ein Beispiel könnte sein, dass Sie einen externen Authentifizierungsanbieter haben, mit dem Sie sich verbinden müssen.

Sie senden ihm ein Token und er gibt einen authentifizierten Benutzer zurück.

Instead, you want to provide a different dependency that will be used only during tests (possibly only some specific tests), and will provide a value that can be used where the value of the original dependency was used.

### Use cases: external service

An example could be that you have an external authentication provider that you need to call.

You send it a token and it returns an authenticated user.

    if summary:
        info["summary"] = summary
    if description:
        info["description"] = description
    if terms_of_service:
        info["termsOfService"] = terms_of_service
    if contact:
        info["contact"] = contact
    if license_info:
        info["license"] = license_info
    output: Dict[str, Any] = {"openapi": openapi_version, "info": info}