```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">

Das ist nützlich, wenn Sie Schlüssel empfangen, deren Namen Sie nicht bereits kennen.

---

Ein anderer nützlicher Anwendungsfall ist, wenn Sie Schlüssel eines anderen Typs haben wollen, z. B. `int`.

Das schauen wir uns mal an.

Im folgenden Beispiel akzeptieren Sie irgendein `dict`, solange es `int`-Schlüssel und `float`-Werte hat.

//// tab | Python 3.9+

```Python hl_lines="7"

	err = client.MakeBucket(ctx, getRandomBucketName(), minio.MakeBucketOptions{})
	if err != nil {
		c.Fatalf("user could not create bucket: %v", err)
	}

	// 4. Check that user can be disabled and verify it.
	err = s.adm.SetUserStatus(ctx, accessKey, madmin.AccountDisabled)
	if err != nil {
		c.Fatalf("could not set user account to disabled")
	}
	usersMap, err = s.adm.ListUsers(ctx)
	if err != nil {

 *           // Services have been initialized and are healthy, start accepting requests...
 *         }
 *         public void failure(Service service) {
 *           // Something failed, at this point we could log it, notify a load balancer, or take
 *           // some other action.  For now we will just exit.
 *           System.exit(1);
 *         }
 *       },
 *       MoreExecutors.directExecutor());
 *

 *           // Services have been initialized and are healthy, start accepting requests...
 *         }
 *         public void failure(Service service) {
 *           // Something failed, at this point we could log it, notify a load balancer, or take
 *           // some other action.  For now we will just exit.
 *           System.exit(1);
 *         }
 *       },
 *       MoreExecutors.directExecutor());
 *

 * <li>success with warnings - model field + non-error model problems
 * <li>error - no model, but diagnostics
 * <li>error - (partial) model and diagnostics
 * </ol>
 * Could encode these variants as subclasses, but kept in one for now
 *
 * @param <T> the model type
 * @deprecated use {@link org.apache.maven.api.services.ModelBuilder} instead
 */
@Deprecated(since = "4.0.0")

		writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErrWithErr(ErrAdminConfigBadJSON, err), r.URL)
		return
	}

	if err := updateReq.Validate(); err != nil {
		// Since this validation would happen client side as well, we only send
		// a generic error message here.
		writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrAdminResourceInvalidArgument), r.URL)
		return
	}

Es ist jedoch nicht möglich, einen laufenden Container, ohne **mindestens einen laufenden Prozess** zu haben. Wenn der Hauptprozess stoppt, stoppt der Container.

## Ein Docker-Image für FastAPI erstellen

Okay, wollen wir jetzt etwas bauen! 🚀

Ich zeige Ihnen, wie Sie ein **Docker-Image** für FastAPI **von Grund auf** erstellen, basierend auf dem **offiziellen Python**-Image.

	// Parse all certs in the chain.
	current := data
	for len(current) > 0 {
		var pemBlock *pem.Block
		if pemBlock, current = pem.Decode(current); pemBlock == nil {
			return nil, ErrTLSUnexpectedData(nil).Msgf("Could not read PEM block from file %s", certFile)
		}

		var x509Cert *x509.Certificate
		if x509Cert, err = x509.ParseCertificate(pemBlock.Bytes); err != nil {

        val matches: List<ResolvedComponentResult> = resolutionResult.allComponents.filter { it != resolutionResult.root }
        if (matches.isEmpty()) {
            throw GradleException("Could not locate any matches for $notation")
        }
        matches.forEach { dep -> dest[name] = (dep.id as ModuleComponentIdentifier).version }
    }