### <a href="https://www.django-rest-framework.org/" class="external-link" target="_blank">Django REST Framework</a>

Django REST framework a été conçu comme une boîte à outils flexible permettant de construire des API Web à partir de Django, afin d'améliorer ses capacités en matière d'API.

// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package rest

import (
	"net/http"
	"net/http/httptrace"
	"sync/atomic"
	"time"
)

var globalStats = struct {
	errs uint64

	tcpDialErrs                 uint64
	tcpDialCount                uint64

```

</div>

////

Omdat omgevingsvariabelen buiten de code kunnen worden ingesteld, maar wel door de code kunnen worden gelezen en niet hoeven te worden opgeslagen (gecommit naar `git`) met de rest van de bestanden, worden ze vaak gebruikt voor configuraties of **instellingen**.

Hello Wade Wilson from Python
```

</div>

////

As environment variables can be set outside of the code, but can be read by the code, and don't have to be stored (committed to `git`) with the rest of the files, it's common to use them for configurations or **settings**.

You can also create an environment variable only for a **specific program invocation**, that is only available to that program, and only for its duration.

 * @since 1.0
 */
@GwtCompatible(emulated = true)
@ElementTypesAreNonnullByDefault
public final class Callables {
  private Callables() {}

  /** Creates a {@code Callable} which immediately returns a preset value each time it is called. */
  public static <T extends @Nullable Object> Callable<T> returning(@ParametricNullness T value) {
    return () -> value;
  }

  /**

```Python hl_lines="2-3  23"
{!../../docs_src/wsgi/tutorial001.py!}
```

## Es ansehen

Jetzt wird jede Anfrage unter dem Pfad `/v1/` von der Flask-Anwendung verarbeitet.

Und der Rest wird von **FastAPI** gehandhabt.

Wenn Sie das mit Uvicorn ausführen und auf <a href="http://localhost:8000/v1/" class="external-link" target="_blank">http://localhost:8000/v1/</a> gehen, sehen Sie die Response von Flask:

```txt

allow {
 input.owner == true
}

# All other users may do anything other than call PutObject
allow {
 input.action != "s3:PutObject"
 input.owner == false
}
EOF
```

Then load the policy via OPA's REST API.

```
curl -X PUT --data-binary @example.rego \
  localhost:8181/v1/policies/putobject
```

### 4. Setup MinIO with OPA

* **Alembic**-Migrationen.
* **CORS** (Cross Origin Resource Sharing).
* **Celery**-Worker, welche Modelle und Code aus dem Rest des Backends selektiv importieren und verwenden können.

//// tab | Python 3.10+

Sie können die eingebauten Typen als Generics verwenden (mit eckigen Klammern und Typen darin):

* `list`
* `tuple`
* `set`
* `dict`

Verwenden Sie für den Rest, wie unter Python 3.8, das `typing`-Modul:

* `Union`
* `Optional` (so wie unter Python 3.8)
* ... und andere.

/**
 */
// Just hide the one method we want behind the RepositorySystem interface.
@Deprecated
public interface ArtifactResolver {

    ArtifactResolutionResult resolve(ArtifactResolutionRequest request);

    // The rest is deprecated
    // USED BY MAVEN ASSEMBLY PLUGIN 2.2-beta-2
    @Deprecated
    String ROLE = ArtifactResolver.class.getName();

    // USED BY SUREFIRE, DEPENDENCY PLUGIN
    @Deprecated