{* ../../docs_src/query_params/tutorial002_py310.py hl[7] *}

Nesse caso, o parâmetro da função `q` será opcional, e `None` será o padrão.

/// check | Verifique

Você também pode notar que o **FastAPI** é esperto o suficiente para perceber que o parâmetro da rota `item_id` é um parâmetro da rota, e `q` não é, portanto, `q` é o parâmetro de consulta.

///

/// info | Bilgi

Tag'ler hakkında daha fazlası için: [Path Operation Configuration](path-operation-configuration.md#tags).

///

### Dokümanları kontrol edin { #check-the-docs }

Artık dokümanlara baktığınızda, eklediğiniz tüm metadata gösterilir:

<img src="/img/tutorial/metadata/image02.png">

### Tag sırası { #order-of-tags }

<span style="color: green;">INFO</span>:     Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)
```

</div>

### Vérifier les réponses { #check-the-responses }

Maintenant, si vous allez à l'URL avec le port pour Uvicorn : [http://127.0.0.1:8000/app](http://127.0.0.1:8000/app), vous verrez la réponse normale :

```JSON
{
    "message": "Hello World",

```

</div>

출력되는 줄들 중에는 아래와 같은 내용이 있습니다:

```hl_lines="4"
INFO:     Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)
```

해당 줄은 로컬 머신에서 앱이 서비스되는 URL을 보여줍니다.

### 확인하기 { #check-it }

브라우저로 [http://127.0.0.1:8000](http://127.0.0.1:8000)를 여세요.

아래와 같은 JSON 응답을 볼 수 있습니다:

```JSON
{"message": "Hello World"}
```

### 대화형 API 문서 { #interactive-api-docs }

<span style="color: green;">INFO</span>:     Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)
```

</div>

### Verifique as respostas { #check-the-responses }

Agora, se você for ao URL com a porta para o Uvicorn: [http://127.0.0.1:8000/app](http://127.0.0.1:8000/app), você verá a resposta normal:

```JSON
{
    "message": "Hello World",

        for (int i = 0; i < sampleSize; i++) {
            nonces[i] = encryptionContext.generateNonce();
        }

        // Then - Check that counter portion has entropy
        // For SMB3-compliant nonces, the first 8 bytes are a counter (little-endian)
        // so we check that the counter bytes change as expected
        Set<String> uniqueCounters = new HashSet<>();
        for (int i = 0; i < sampleSize; i++) {

     * @return the chunkBytesWritten
     */
    public int getChunkBytesWritten() {
        return this.chunkBytesWritten;
    }

    /**
     * Gets the number of chunks successfully written
     * @return the chunksWritten
     */
    public int getChunksWritten() {
        return this.chunksWritten;
    }

    /**

      V result = map.get(key);
      checkArgument(result != null || map.containsKey(key), "Key '%s' not present in map", key);
      // The unchecked cast is safe because of the containsKey check.
      return uncheckedCastNullableTToT(result);
    }

    @Override
    public boolean equals(@Nullable Object o) {
      if (o instanceof FunctionForMapNoDefault) {

        }
        return result.replaceAll("\\s+", " ");
    }

    /**
     * Returns the supported language for a given language.
     *
     * @param lang The language to check.
     * @return The supported language, or null if not supported.
     */
    protected String getSupportedLanguage(final String lang) {
        if (StringUtil.isBlank(lang)) {
            return null;
        }

   * - It might be preferable to be consistent with the JDK precedent (which they stuck with even
   *   for "UncheckedIOException").
   *
   * - If we change the name, some of our callers break because our Android Lint ParameterName check
   *   doesn't make the exception for com.google.common that internal Error Prone does: b/386402967.
   */
  @SuppressWarnings("IdentifierName")
  public static void close(@Nullable Closeable closeable, boolean swallowIOException)