Neste caso o **FastAPI** esperará um corpo como:

```JSON hl_lines="2"
{
    "item": {
        "name": "Foo",
        "description": "The pretender",
        "price": 42.0,
        "tax": 3.2
    }
}
```

ao invés de:

```JSON
{
    "name": "Foo",
    "description": "The pretender",
    "price": 42.0,
    "tax": 3.2
}
```

## Recapitulando { #recap }

Wenn Sie dieses Beispiel ausführen und auf <a href="http://127.0.0.1:8000/items/foo" class="external-link" target="_blank">http://127.0.0.1:8000/items/foo</a> gehen, sehen Sie als <abbr title="Response – Antwort: Daten, die der Server zum anfragenden Client zurücksendet">Response</abbr>:

```JSON
{"item_id":"foo"}
```

## Pfad-Parameter mit Typen { #path-parameters-with-types }

        URL rel = new URL(base, "foo/bar", handler);

        // Assert
        assertEquals(SmbConstants.DEFAULT_PORT, rel.getPort(), "Default port should be applied");
        String actualPath = rel.getPath();
        assertNotNull(actualPath, "Path should not be null");
        // Based on the test output, the actual path is "/bar" when parsing relative spec "foo/bar"

from docs_src.handling_errors.tutorial001_py39 import app

client = TestClient(app)


def test_get_item():
    response = client.get("/items/foo")
    assert response.status_code == 200, response.text
    assert response.json() == {"item": "The Foo Wrestlers"}


def test_get_item_not_found():
    response = client.get("/items/bar")
    assert response.status_code == 404, response.text

app = FastAPI()


class Item(BaseModel):
    name: str | None = None
    description: str | None = None
    price: float | None = None
    tax: float = 10.5
    tags: list[str] = []


items = {
    "foo": {"name": "Foo", "price": 50.2},
    "bar": {"name": "Bar", "description": "The bartenders", "price": 62, "tax": 20.2},
    "baz": {"name": "Baz", "description": None, "price": 50.2, "tax": 10.5, "tags": []},
}

    assert response.status_code == 200, response.text
    assert response.json() == {"q": None}


def test_default_param_query():
    response = client.get("/items/?q=foo")
    assert response.status_code == 200, response.text

    suite.addTestSuite(CharSourceTest.class);
    return suite;
  }

  private static final String STRING = ASCII + I18N;
  private static final String LINES = "foo\nbar\r\nbaz\rsomething";
  private static final ImmutableList<String> SPLIT_LINES =
      ImmutableList.of("foo", "bar", "baz", "something");

  private TestCharSource source;

  @Override
  public void setUp() {
    source = new TestCharSource(STRING);
  }

client = TestClient(app)


def test_post_items():
    response = client.post("/items/", json={"name": "Foo", "price": 5})
    assert response.status_code == 200, response.text
    assert response.json() == {"message": "Item received"}


def test_post_users():
    response = client.post(
        "/users/", json={"username": "Foo", "email": "foo@example.com"}
    )
    assert response.status_code == 200, response.text

    response = client.post(
        "/items/",
        json={
            "name": "Foo",
            "description": "Item description",
            "price": 42.0,
            "tax": 3.2,
            "tags": ["bar", "baz"],
        },
    )
    assert response.status_code == 200, response.text
    assert response.json() == {
        "name": "Foo",
        "description": "Item description",
        "price": 42.0,
        "tax": 3.2,

    assert response.json() == {  # pragma: no cover
        "items": [{"item_id": "Foo"}, {"item_id": "Bar"}],
    }


def test_query_params_str_validations_q_query(client: TestClient):
    response = client.get("/items/", params={"q": "query"})
    assert response.status_code == 200
    assert response.json() == {
        "items": [{"item_id": "Foo"}, {"item_id": "Bar"}],
        "q": "query",
    }