### Das Attribut `app.dependency_overrides` verwenden { #use-the-app-dependency-overrides-attribute }

### Utilize o atributo `app.dependency_overrides` { #use-the-app-dependency-overrides-attribute }

Para estes casos, a sua aplicação **FastAPI** possui o atributo `app.dependency_overrides`. Ele é um simples `dict`.

C'est le "**décorateur d'opération de chemin**".

///

Vous pouvez aussi utiliser les autres opérations :

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

Tout comme celles les plus exotiques :

* `@app.options()`
* `@app.head()`
* `@app.patch()`
* `@app.trace()`

/// tip | Astuce

Vous êtes libres d'utiliser chaque opération (méthode HTTP) comme vous le désirez.

RUN pip install --no-cache-dir --upgrade -r /code/requirements.txt

COPY ./app /code/app

# (1)!
CMD ["fastapi", "run", "app/main.py", "--port", "80", "--workers", "4"]
```

1. Here we use the `--workers` command line option to set the number of workers to 4.

Here are some examples of when that could make sense:

#### A Simple App { #a-simple-app }

from fastapi.testclient import TestClient
from pydantic import BaseModel

app = FastAPI()


class ItemGroup(BaseModel):
    items: list[tuple[str, str]]


class Coordinate(BaseModel):
    x: float
    y: float


@app.post("/model-with-tuple/")
def post_model_with_tuple(item_group: ItemGroup):
    return item_group


@app.post("/tuple-of-models/")

import org.codelibs.fess.Constants;
import org.codelibs.fess.app.pager.WebConfigPager;
import org.codelibs.fess.app.service.WebConfigService;
import org.codelibs.fess.app.web.CrudMode;
import org.codelibs.fess.app.web.api.ApiResult;
import org.codelibs.fess.app.web.api.ApiResult.ApiConfigResponse;
import org.codelibs.fess.app.web.api.ApiResult.ApiResponse;
import org.codelibs.fess.app.web.api.ApiResult.ApiUpdateResponse;

from inline_snapshot import snapshot

app = FastAPI(
    servers=[
        {"url": "/", "description": "Default, relative server"},
        {
            "url": "http://staging.localhost.tiangolo.com:8000",
            "description": "Staging but actually localhost still",
        },
        {"url": "https://prod.example.com"},
    ]
)


@app.get("/foo")
def foo():
    return {"message": "Hello World"}

from pydantic import BaseModel, WithJsonSchema

app = FastAPI()


class Item(BaseModel):
    name: str

    description: Annotated[
        Optional[str], WithJsonSchema({"type": ["string", "null"]})
    ] = None

    model_config = {
        "json_schema_extra": {
            "x-something-internal": {"level": 4},
        }
    }


@app.get("/foo", response_model=Item)
def foo():

policy/v1beta1 kind: PodDisruptionBudget metadata: name: minio labels: app: {{ template "minio.name" . }} spec: maxUnavailable: {{ .Values.podDisruptionBudget.maxUnavailable }} selector: matchLabels: app: {{ template "minio.name" . }} {{- end }} minio/templates/post-install-create-bucket-job.yaml {{- if .Values.buckets }} apiVersion: batch/v1 kind: Job metadata: name: {{ template "minio.fullname" . }}-make-bucket-job labels: app: {{ template "minio.name" . }}-make-bucket-job chart: {{ template "minio.chart"...

@app.post("/users/", response_model=User)
async def create_user(user: UserCreate):
    return user


@app.get("/pets/{pet_id}", response_model=PetOut)
async def read_pet(pet_id: int):
    user = UserDB(
        email="******@****.***",
        hashed_password="secrethashed",
    )
    pet = PetDB(name="Nibbler", owner=user)
    return pet


@app.get("/pets/", response_model=list[PetOut])