try {
            final String localeStr = locale.toString();
            return langItemsCache.get(localeStr);
        } catch (final ExecutionException e) {
            final List<Map<String, String>> langItems = new ArrayList<>(supportedLanguages.length);
            final String msg = ComponentUtil.getMessageManager().getMessage(locale, "labels.allLanguages");

## Testing locally with Traefik { #testing-locally-with-traefik }

You can easily run the experiment locally with a stripped path prefix using <a href="https://docs.traefik.io/" class="external-link" target="_blank">Traefik</a>.

            <redirectTestOutputToFile>true</redirectTestOutputToFile>
            <runOrder>alphabetical</runOrder>
            <!-- Set max heap for tests. -->
            <!-- Catch dependencies on the default locale by setting it to hi-IN. -->
            <argLine>-Xmx1536M -Duser.language=hi -Duser.country=IN ${test.add.opens}</argLine>
          </configuration>
        </plugin>
        <plugin>

            <redirectTestOutputToFile>true</redirectTestOutputToFile>
            <runOrder>alphabetical</runOrder>
            <!-- Set max heap for tests. -->
            <!-- Catch dependencies on the default locale by setting it to hi-IN. -->
            <argLine>-Xmx1536M -Duser.language=hi -Duser.country=IN ${test.add.opens}</argLine>
          </configuration>
        </plugin>
        <plugin>

Because we are using a relative URL, if your API was located at `https://example.com/`, then it would refer to `https://example.com/token`. But if your API was located at `https://example.com/api/v1/`, then it would refer to `https://example.com/api/v1/token`.

      # - 24 for running Javadoc and javac (to help people who build Guava locally and might not use a recent JDK to run Maven)
      - name: 'Set up JDKs'
        uses: actions/setup-java@dded0888837ed1f317902acf8a20df0ad188d165 # v5.0.0
        with:
          java-version: |

     <span style="background-color:#007166"><font color="#D3D7CF"> INFO </font></span>  Application startup complete.
```

</div>

It is **HIGHLY encouraged** that you write or copy the code, edit it and run it locally.

Using it in your editor is what really shows you the benefits of FastAPI, seeing how little code you have to write, all the type checks, autocompletion, etc.

---

## Install FastAPI { #install-fastapi }

* You can ask them to provide a <a href="https://stackoverflow.com/help/minimal-reproducible-example" class="external-link" target="_blank">minimal, reproducible, example</a>, that you can **copy-paste** and run locally to see the same error or behavior they are seeing, or to understand their use case better.

			</plugin>
			<plugin>
				<artifactId>maven-javadoc-plugin</artifactId>
				<configuration>
					<encoding>UTF-8</encoding>
					<docencoding>UTF-8</docencoding>
					<charset>UTF-8</charset>
					<locale>en_US</locale>
					<windowtitle>Open Source Enterprise Search: Fess API</windowtitle>
					<header>&lt;a href="https://fess.codelibs.org/" target="_blank"&gt;Enterprise Search Server: Fess&lt;/a&gt;</header>
					<excludePackageNames>

@app.put("/items/{item_id}")
def update_item(item_id: int, item: Item):
    return {"item_name": item.name, "item_id": item_id}
```

Serwer powinien przeładować się automatycznie (ponieważ dodałeś `--reload` do komendy `uvicorn` powyżej).

### Zaktualizowana interaktywna dokumentacja API

Wejdź teraz na <a href="http://127.0.0.1:8000/docs" class="external-link" target="_blank">http://127.0.0.1:8000/docs</a>.