[tool.ruff.lint.per-file-ignores]
"__init__.py" = ["F401"]
"docs_src/dependencies/tutorial007_py39.py" = ["F821"]
"docs_src/dependencies/tutorial008_py39.py" = ["F821"]
"docs_src/dependencies/tutorial009_py39.py" = ["F821"]
"docs_src/dependencies/tutorial010_py39.py" = ["F821"]
"docs_src/custom_response/tutorial007_py39.py" = ["B007"]
"docs_src/dataclasses/tutorial003_py39.py" = ["I001"]

Und Sie möchten diese Exception global mit FastAPI handhaben.

Sie könnten einen benutzerdefinierten Exceptionhandler mit `@app.exception_handler()` hinzufügen:

{* ../../docs_src/handling_errors/tutorial003_py39.py hl[5:7,13:18,24] *}

Hier, wenn Sie `/unicorns/yolo` anfordern, wird die *Pfadoperation* eine `UnicornException` `raise`n.

Aber diese wird von `unicorn_exception_handler` gehandhabt.

{* ../../docs_src/python_types/tutorial003_py39.py hl[1] *}

Da der Editor die Typen der Variablen kennt, erhalten Sie nicht nur Code-Vervollständigung, sondern auch eine Fehlerprüfung:

<img src="/img/python-types/image04.png">

Jetzt, da Sie wissen, dass Sie das reparieren müssen, konvertieren Sie `age` mittels `str(age)` in einen String:

{* ../../docs_src/python_types/tutorial004_py39.py hl[2] *}

from fastapi.testclient import TestClient

from docs_src.additional_responses.tutorial003_py39 import app

client = TestClient(app)


def test_path_operation():
    response = client.get("/items/foo")
    assert response.status_code == 200, response.text
    assert response.json() == {"id": "foo", "value": "there goes my hero"}


def test_path_operation_not_found():
    response = client.get("/items/bar")

{* ../../docs_src/response_directly/tutorial002_py39.py hl[1,18] *}

### `HTMLResponse` { #htmlresponse }

Принимает текст или байты и возвращает HTML-ответ, как описано выше.

### `PlainTextResponse` { #plaintextresponse }

Принимает текст или байты и возвращает ответ в виде простого текста.

{* ../../docs_src/custom_response/tutorial005_py39.py hl[2,7,9] *}

### `JSONResponse` { #jsonresponse }

@pytest.fixture(
    name="mod_name",
    params=[
        pytest.param("tutorial001_py39"),
        pytest.param("tutorial001_py310", marks=needs_py310),
        pytest.param("tutorial002_py39"),
        pytest.param("tutorial002_py310", marks=needs_py310),
        pytest.param("tutorial003_py39"),
        pytest.param("tutorial003_py310", marks=needs_py310),
    ],
)
def get_mod_name(request: pytest.FixtureRequest):

Mas é a maneira mais simples de focar no lado do servidor de WebSockets e ter um exemplo funcional:

{* ../../docs_src/websockets/tutorial001_py39.py hl[2,6:38,41:43] *}

## Crie um `websocket` { #create-a-websocket }

Em sua aplicação **FastAPI**, crie um `websocket`:

{* ../../docs_src/websockets/tutorial001_py39.py hl[1,46:47] *}

/// note | Detalhes Técnicos

Você também poderia usar `from starlette.websockets import WebSocket`.

import importlib

import pytest
from fastapi.testclient import TestClient

from ...utils import needs_py310


@pytest.fixture(
    name="client",
    params=[
        pytest.param("tutorial003_py39"),
        pytest.param("tutorial003_py310", marks=needs_py310),
    ],
)
def get_client(request: pytest.FixtureRequest):
    mod = importlib.import_module(f"docs_src.query_params.{request.param}")

    client = TestClient(mod.app)

from fastapi.testclient import TestClient
from inline_snapshot import snapshot

from ...utils import needs_py310


@pytest.fixture(
    name="client",
    params=[
        pytest.param("tutorial003_py39"),
        pytest.param("tutorial003_py310", marks=needs_py310),
    ],
)
def get_client(request: pytest.FixtureRequest):
    mod = importlib.import_module(f"docs_src.response_model.{request.param}")

    client = TestClient(mod.app)

And you want to handle this exception globally with FastAPI.

You could add a custom exception handler with `@app.exception_handler()`:

{* ../../docs_src/handling_errors/tutorial003_py39.py hl[5:7,13:18,24] *}

Here, if you request `/unicorns/yolo`, the *path operation* will `raise` a `UnicornException`.

But it will be handled by the `unicorn_exception_handler`.