응답의 콘텐츠 타입은 `application/json` 대신 `application/jsonl`이고, 본문은 다음과 같습니다:

```json
{"name": "Plumbus", "description": "A multi-purpose household device."}
{"name": "Portal Gun", "description": "A portal opening device."}
{"name": "Meeseeks Box", "description": "A box that summons a Meeseeks."}
```

JSON 배열(Python의 list에 해당)과 매우 비슷하지만, 항목들을 `[]`로 감싸고 항목 사이에 `,`를 넣는 대신, 줄마다 하나의 JSON 객체가 있고, 새 줄 문자로 구분됩니다.

Response’un `application/json` yerine `application/jsonl` içerik türü (Content-Type) olur ve body aşağıdaki gibi görünür:

```json
{"name": "Plumbus", "description": "A multi-purpose household device."}
{"name": "Portal Gun", "description": "A portal opening device."}
{"name": "Meeseeks Box", "description": "A box that summons a Meeseeks."}
```

def test_no_redirect() -> None:
    response = client.get("/items/")
    assert response.status_code == 200

class Item(BaseModel):
    name: str
    description: str | None = None


items = [
    Item(name="Plumbus", description="A multi-purpose household device."),
    Item(name="Portal Gun", description="A portal opening device."),
    Item(name="Meeseeks Box", description="A box that summons a Meeseeks."),
]


app = FastAPI()


@app.get("/items/stream", response_class=EventSourceResponse)

from typing import Annotated

from fastapi import Depends, FastAPI, HTTPException

app = FastAPI()


data = {
    "plumbus": {"description": "Freshly pickled plumbus", "owner": "Morty"},
    "portal-gun": {"description": "Gun to create portals", "owner": "Rick"},
}


class OwnerError(Exception):
    pass


def get_username():
    try:
        yield "Rick"
    except OwnerError as e:

Если клиент попробует отправить дополнительные данные, то в ответ он получит **ошибку**.

Например, если клиент попытается отправить поля формы:

* `username`: `Rick`
* `password`: `Portal Gun`
* `extra`: `Mr. Poopybutthole`

То в ответ он получит **ошибку**, сообщающую ему, что поле `extra` не разрешено:

```json
{
    "detail": [
        {
            "type": "extra_forbidden",

Une réponse aurait un type de contenu `application/jsonl` (au lieu de `application/json`) et le corps ressemblerait à ceci :

```json
{"name": "Plumbus", "description": "A multi-purpose household device."}
{"name": "Portal Gun", "description": "A portal opening device."}
{"name": "Meeseeks Box", "description": "A box that summons a Meeseeks."}
```

from fastapi import FastAPI

app = FastAPI()


class Tags(Enum):
    items = "items"
    users = "users"


@app.get("/items/", tags=[Tags.items])
async def get_items():
    return ["Portal gun", "Plumbus"]


@app.get("/users/", tags=[Tags.users])
async def read_users():

app = FastAPI()


@app.post("/items/")
def create_item(item: Item):
    return item


@app.get("/items/")
def read_items() -> list[Item]:
    return [
        Item(
            name="Portal Gun",
            description="Device to travel through the multi-rick-verse",
        ),
        Item(name="Plumbus"),

@app.post("/items/")
def create_item(item: Item):
    return item


@app.get("/items/")
def read_items() -> list[Item]:
    return [
        Item(
            name="Portal Gun",
            description="Device to travel through the multi-rick-verse",
        ),
        Item(name="Plumbus"),