---

Si simplemente no lo sabes, usa `def` normal.

---

**Nota**: Puedes mezclar `def` y `async def` en tus *path operation functions* tanto como necesites y definir cada una utilizando la mejor opción para ti. FastAPI hará lo correcto con ellas.

De todos modos, en cualquiera de los casos anteriores, FastAPI seguirá funcionando de forma asíncrona y será extremadamente rápido.

```Python hl_lines="6  11  16" title="app/routers/users.py"
{!../../docs_src/bigger_applications/app/routers/users.py!}
```

You can think of `APIRouter` as a "mini `FastAPI`" class.

All the same options are supported.

All the same `parameters`, `responses`, `dependencies`, `tags`, etc.

/// tip

In this example, the variable is called `router`, but you can name it however you want.

///

building-a-machine-learning-microservice-with-fastapi/ title: Building a Machine Learning Microservice with FastAPI - author: Ravgeet Dhillon - Twilio link: https://www.twilio.com/en-us/blog/booking-appointments-twilio-notion-fastapi title: Booking Appointments with Twilio, Notion, and FastAPI - author: Abhinav Tripathi - Microsoft Blogs link: https://devblogs.microsoft.com/cosmosdb/azure-cosmos-db-python-and-fastapi/ title: Write a Python data layer with Azure Cosmos DB and FastAPI - author: Donny...

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
 * either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.mylasta.action;

import org.codelibs.fess.unit.UnitFessTestCase;
import org.lastaflute.core.message.UserMessage;

public class FessMessagesTest extends UnitFessTestCase {

    private FessMessages messages;

    @Override

import org.lastaflute.web.response.render.RenderData;
import org.lastaflute.web.ruts.process.ActionRuntime;
import org.lastaflute.web.util.LaRequestUtil;

import jakarta.annotation.Resource;

/**
 * Admin action for Scheduler management.
 *
 */
public class AdminSchedulerAction extends FessAdminAction {

    /**
     * Default constructor.
     */
    public AdminSchedulerAction() {
        super();
    }

import org.codelibs.fess.suggest.normalizer.Normalizer;
import org.codelibs.fess.suggest.settings.SuggestSettings;
import org.codelibs.fess.suggest.util.SuggestUtil;
import org.opensearch.OpenSearchStatusException;
import org.opensearch.action.search.SearchResponse;
import org.opensearch.index.query.Operator;
import org.opensearch.index.query.QueryBuilder;
import org.opensearch.index.query.QueryBuilders;
import org.opensearch.search.SearchHit;

👤 💌 👂 🔃 ❔ **FastAPI** 💆‍♂ ⚙️, ⚫️❔ 👆 ✔️ 💖 ⚫️, ❔ 🏗/🏢 👆 ⚙️ ⚫️, ♒️.

## 🗳 FastAPI

* <a href="https://www.slant.co/options/34241/~fastapi-review" class="external-link" target="_blank">🗳 **FastAPI** 📐</a>.
* <a href="https://alternativeto.net/software/fastapi/" class="external-link" target="_blank">🗳 **FastAPI** 📱</a>.

import java.util.HashMap;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.stream.Collectors;

import org.codelibs.fess.entity.SearchRenderData;
import org.codelibs.fess.mylasta.action.FessMessages;
import org.codelibs.fess.util.ComponentUtil;
import org.codelibs.fess.util.FacetResponse;
import org.lastaflute.web.util.LaRequestUtil;
import org.lastaflute.web.validation.VaMessenger;

                    </div>
                </div>
            </div>
        </div>
        <section class="content">
            <la:form action="/admin/user/">
                <la:hidden property="crudMode"/>
                <c:if test="${crudMode==2}">
                    <la:hidden property="id"/>
                    <la:hidden property="versionNo"/>

                        </h1>
                    </div>
                </div>
            </div>
        </div>
        <section class="content">
            <la:form action="/admin/general/">
                <div class="row">
                    <div class="col-md-12">
                        <div class="card card-outline card-success">
                            <div class="card-body">