client = TestClient(app)
    response = client.get("/")
    assert response.status_code == 200, response.text
    assert b"<form" in response.content


def test_openapi_schema(client: TestClient):
    response = client.get("/openapi.json")
    assert response.status_code == 200, response.text
    assert response.json() == {
        "openapi": "3.1.0",
        "info": {"title": "FastAPI", "version": "0.1.0"},
        "paths": {

///

### `Response` { #response }

Базовый класс `Response`, от него наследуются все остальные ответы.

Его можно возвращать напрямую.

Он принимает следующие параметры:

- `content` — `str` или `bytes`.
- `status_code` — целое число, HTTP статус-код.

# Response-Statuscode { #response-status-code }

Genauso wie Sie ein Responsemodell angeben können, können Sie auch den HTTP-Statuscode für die <abbr title="Response – Antwort: Daten, die der Server zum anfragenden Client zurücksendet">Response</abbr> mit dem Parameter `status_code` in jeder der *Pfadoperationen* deklarieren:

* `@app.get()`
* `@app.post()`
* `@app.put()`
* `@app.delete()`
* usw.

    response = client.get("/query_examples/")
    assert response.status_code == 200, response.text
    response = client.get("/query_example_examples/")
    assert response.status_code == 200, response.text
    response = client.get("/header_example/")
    assert response.status_code == 200, response.text
    response = client.get("/header_examples/")
    assert response.status_code == 200, response.text

def main_route(callback_url: HttpUrl):
    pass  # pragma: no cover


client = TestClient(app)


def test_openapi_schema():
    response = client.get("/openapi.json")
    assert response.status_code == 200, response.text
    assert response.json() == snapshot(
        {
            "openapi": "3.1.0",
            "info": {"title": "FastAPI", "version": "0.1.0"},
            "paths": {

def test_generic_parameterless_depends():
    response = client.get("/a")
    assert response.status_code == 200, response.text
    assert response.json() == {"cls": "A"}

    response = client.get("/b")
    assert response.status_code == 200, response.text
    assert response.json() == {"cls": "B"}


def test_openapi_schema():
    response = client.get("/openapi.json")
    assert response.status_code == 200, response.text

### Add some custom `tags`, `responses`, and `dependencies` { #add-some-custom-tags-responses-and-dependencies }

We are not adding the prefix `/items` nor the `tags=["items"]` to each *path operation* because we added them to the `APIRouter`.

But we can still add _more_ `tags` that will be applied to a specific *path operation*, and also some extra `responses` specific to that *path operation*:

```

/// note | Technical Details

You could also use `from starlette.requests import Request` and `from starlette.responses import JSONResponse`.

**FastAPI** provides the same `starlette.responses` as `fastapi.responses` just as a convenience for you, the developer. But most of the available responses come directly from Starlette. The same with `Request`.

///

## Zusätzliche Responses { #additional-responses }

Sie haben wahrscheinlich gesehen, wie man das `response_model` und den `status_code` für eine *Pfadoperation* deklariert.

Das definiert die Metadaten der Haupt-<abbr title="Response – Antwort: Daten, die der Server zum anfragenden Client zurücksendet">Response</abbr> einer *Pfadoperation*.

Sie können auch zusätzliche Responses mit deren Modellen, Statuscodes usw. deklarieren.

It includes the `tags`, `parameters`, `requestBody`, `responses`, etc.

This *path operation*-specific OpenAPI schema is normally generated automatically by **FastAPI**, but you can also extend it.

/// tip

This is a low level extension point.

If you only need to declare additional responses, a more convenient way to do it is with [Additional Responses in OpenAPI](additional-responses.md){.internal-link target=_blank}.

///