///

### Passo 2: crie uma "instância" de `FastAPI` { #step-2-create-a-fastapi-instance }

{* ../../docs_src/first_steps/tutorial001_py39.py hl[3] *}

Aqui, a variável `app` será uma "instância" da classe `FastAPI`.

Este será o principal ponto de interação para criar toda a sua API.

### Passo 3: crie uma operação de rota { #step-3-create-a-path-operation }

#### Path { #path }

///

### Paso 2: crea una "instance" de `FastAPI` { #step-2-create-a-fastapi-instance }

{* ../../docs_src/first_steps/tutorial001_py39.py hl[3] *}

Aquí la variable `app` será una "instance" de la clase `FastAPI`.

Este será el punto principal de interacción para crear toda tu API.

### Paso 3: crea una *path operation* { #step-3-create-a-path-operation }

#### Path { #path }

            requestData.setUrl(url.substring(0, url.length() - 1));
        } else {
            requestData.setUrl(url + "/");
        }
        return requestData;
    }

    /**
     * Creates and configures a DOM parser with the specified features and properties.
     *
     * @return a configured DOM parser
     * @throws CrawlerSystemException if the parser configuration is invalid
     */

   * the least significant bit zero is chosen. (In such cases, both of the nearest representable
   * values are even integers; this method returns the one that is a multiple of a greater power of
   * two.)
   *
   * @throws ArithmeticException if {@code mode} is {@link RoundingMode#UNNECESSARY} and {@code x}
   *     is not precisely representable as a {@code double}
   * @since 30.0
   */

   * #previous()} can retrieve the preceding {@code position} elements.
   *
   * @throws IndexOutOfBoundsException if {@code position} is negative or is greater than {@code
   *     size}
   * @throws IllegalArgumentException if {@code size} is negative
   */
  protected AbstractIndexedListIterator(int size, int position) {
    checkPositionIndex(position, size);

                    "ctx": {"le": 100},
                },
                {
                    "type": "greater_than_equal",
                    "loc": ["query", "offset"],
                    "msg": "Input should be greater than or equal to 0",
                    "input": "-1",
                    "ctx": {"ge": 0},
                },
                {
                    "type": "literal_error",

    assert response.json() == {
        "detail": [
            {
                "loc": ["path", "item_id"],
                "input": "0",
                "msg": "Input should be greater than 0",
                "type": "greater_than",
                "ctx": {"gt": 0},
            }
        ]
    }


def test_read_items_item_id_greater_than_one_thousand(client: TestClient):

     * @throws Exception
     */
    public void testFromBinaryToObject_PermissiveFilter() throws Exception {
        final ObjectInputFilter permissiveFilter = SerializeUtil.createPermissiveFilter();

        // Create a custom class instance
        final TestSerializableClass obj = new TestSerializableClass("test", 123);
        final byte[] binary = SerializeUtil.fromObjectToBinary(obj);

        // Should work with permissive filter

{* ../../docs_src/background_tasks/tutorial001_py39.py hl[1,13] *}

**FastAPI** erstellt für Sie das Objekt vom Typ `BackgroundTasks` und übergibt es als diesen Parameter.

## Eine Taskfunktion erstellen { #create-a-task-function }

Erstellen Sie eine Funktion, die als Hintergrundtask ausgeführt werden soll.

Es handelt sich schlicht um eine Standard-Funktion, die Parameter empfangen kann.

// 32-bit decimal input.
func ExampleScanner_custom() {
	// An artificial input source.
	const input = "1234 5678 1234567901234567890"
	scanner := bufio.NewScanner(strings.NewReader(input))
	// Create a custom split function by wrapping the existing ScanWords function.
	split := func(data []byte, atEOF bool) (advance int, token []byte, err error) {
		advance, token, err = bufio.ScanWords(data, atEOF)