* either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.app.web.error;

import org.codelibs.fess.app.web.base.FessSearchAction;
import org.lastaflute.web.Execute;
import org.lastaflute.web.response.HtmlResponse;

/**
 * Action class for handling HTTP 500 Internal Server Error pages.

Então, a seção:

```Python
    uvicorn.run(app, host="0.0.0.0", port=8000)
```

vai executar.

---

Isso não acontecerá se você importar esse módulo (arquivo).

Então, se você tiver outro arquivo `importer.py` com:

```Python
from myapp import app

# Mais um pouco de código
```

Dieses „Warten“ 🕙 wird in Mikrosekunden gemessen, aber zusammenfassend lässt sich sagen, dass am Ende eine Menge gewartet wird.

Deshalb ist es sehr sinnvoll, asynchronen ⏸🔀⏯ Code für Web-APIs zu verwenden.

Diese Art der Asynchronität hat NodeJS populär gemacht (auch wenn NodeJS nicht parallel ist) und darin liegt die Stärke von Go als Programmiersprache.

from pydantic import BaseModel

app = FastAPI()


class Item(BaseModel):
    name: str
    price: float
    is_offer: bool = None


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


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


@app.put("/items/{item_id}")

 */
package org.codelibs.fess.app.web.api.admin.plugin;

import static org.codelibs.fess.app.web.admin.plugin.AdminPluginAction.deleteArtifact;
import static org.codelibs.fess.app.web.admin.plugin.AdminPluginAction.getAllAvailableArtifacts;
import static org.codelibs.fess.app.web.admin.plugin.AdminPluginAction.getAllInstalledArtifacts;
import static org.codelibs.fess.app.web.admin.plugin.AdminPluginAction.installArtifact;

 */
package org.codelibs.fess.app.web.api.admin.failureurl;

import java.util.List;
import java.util.stream.Collectors;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.fess.app.pager.FailureUrlPager;
import org.codelibs.fess.app.service.FailureUrlService;
import org.codelibs.fess.app.web.api.ApiResult;
import org.codelibs.fess.app.web.api.ApiResult.ApiLogResponse;

 */
package org.codelibs.fess.app.web.api.admin.crawlinginfo;

import java.util.List;
import java.util.stream.Collectors;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.fess.app.pager.CrawlingInfoPager;
import org.codelibs.fess.app.service.CrawlingInfoService;
import org.codelibs.fess.app.web.api.ApiResult;

Ainsi, la section :

```Python
    uvicorn.run(app, host="0.0.0.0", port=8000)
```

va s'exécuter.

---

Cela ne se produira pas si vous importez ce module (fichier).

Par exemple, si vous avez un autre fichier `importer.py` qui contient :

```Python
from myapp import app

# Code supplémentaire
```

        activityHelper.login(OptionalThing.empty());
        assertEquals(
                "{\"@timestamp\":\"2022-01-01T00:00:00.000Z\",\"log.level\":\"INFO\",\"ecs.version\":\"1.2.0\",\"service.name\":\"fess\",\"event.dataset\":\"app\",\"process.thread.name\":\"main\",\"log.logger\":\"org.codelibs.fess.helper.ActivityHelperTest$1\",\"labels.action\":\"LOGIN\",\"labels.user\":\"-\",\"labels.permissions\":\"-\"}",
                localLogMsg.get());

### **FastAPI** app file { #fastapi-app-file }

Let's say you have a file structure as described in [Bigger Applications](bigger-applications.md){.internal-link target=_blank}:

```
.
├── app
│   ├── __init__.py
│   └── main.py
```

In the file `main.py` you have your **FastAPI** app:


{* ../../docs_src/app_testing/main.py *}