img: https://fastapi.tiangolo.com/img/sponsors/liblab.png
  - url: https://docs.render.com/deploy-fastapi?utm_source=deploydoc&utm_medium=referral&utm_campaign=fastapi
    title: Deploy & scale any full-stack web app on Render. Focus on building apps, not infra.
    img: https://fastapi.tiangolo.com/img/sponsors/render.svg
silver:
  - url: https://github.com/deepset-ai/haystack/
    title: Build powerful search from composable, open source building blocks

  - [Scala Applications](https://docs.gradle.org/current/samples/sample_building_scala_applications.html)
  - [Spring Boot Web Apps](https://docs.gradle.org/current/samples/sample_building_spring_boot_web_applications.html)
  - [C++ Libraries](https://docs.gradle.org/current/samples/sample_building_cpp_libraries.html)
  - [Swift Apps](https://docs.gradle.org/current/samples/sample_building_swift_applications.html)

- Apply fsGroup policy for ReadWriteOncePod volumes ([#128244](https://github.com/kubernetes/kubernetes/pull/128244), [@gnufied](https://github.com/gnufied)) [SIG Storage and Testing]
- Graduate Job's ManagedBy field to Beta ([#127402](https://github.com/kubernetes/kubernetes/pull/127402), [@mimowo](https://github.com/mimowo)) [SIG API Machinery, Apps and Testing]

stable version in place and gradually migrate apps to the new version.

- More flexibility: the new installer allows multiple 'environments', allowing applications to select
a set of control plane settings and components. While the entire mesh respects the same APIs and config,
apps may target different 'environments' which contain different instances and variants of Istio.

        <img class="sponsor-image" src="/img/sponsors/liblab-banner.png" />
      </a>
    </div>
    <div class="item">
      <a title="Deploy & scale any full-stack web app on Render. Focus on building apps, not infra." style="display: block; position: relative;" href="https://docs.render.com/deploy-fastapi?utm_source=deploydoc&utm_medium=referral&utm_campaign=fastapi" target="_blank">

* ⬆ Update pre-commit requirement from <4.0.0,>=2.17.0 to >=2.17.0,<5.0.0. PR [#12749](https://github.com/fastapi/fastapi/pull/12749) by [@dependabot[bot]](https://github.com/apps/dependabot).
* ⬆ Bump typer from 0.12.3 to 0.12.5. PR [#12748](https://github.com/fastapi/fastapi/pull/12748) by [@dependabot[bot]](https://github.com/apps/dependabot).

        // -------------------------------------------------------------------------------------
        // Alright, here's the justification for all the regexp wizardry below...
        //
        // Continuum and other server-like apps may need to locate the user-level and
        // global-level settings somewhere other than ${user.home} and ${maven.home},
        // respectively. Using a simple replacement of these patterns will allow them

## Example

### Create it

* Create a file `main.py` with:

```Python
from typing import Union

from fastapi import FastAPI

app = FastAPI()


@app.get("/")
def read_root():
    return {"Hello": "World"}


@app.get("/items/{item_id}")
def read_item(item_id: int, q: Union[str, None] = None):
    return {"item_id": item_id, "q": q}
```

<details markdown="1">

package org.apache.maven.embedder;

/**
 * Hello world!
 *
 */
public class App
{
    public static void main( String[] args )
    {
        System.out.println( "Hello World!" );
    }

Shinsuke Sugaya <******@****.***> 1730954650 +0900