Eine Response hätte einen Content-Type von `application/jsonl` (anstelle von `application/json`) und der Body sähe etwa so aus:

```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."}
```

If a client tries to send some extra data, they will receive an **error** response.

For example, if the client tries to send the form fields:

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

They will receive an error response telling them that the field `extra` is not allowed:

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

      app: {{ template "minio.name" . }}-job
      release: {{ .Release.Name }}
  egress:
    - ports:
        - port: {{ .Values.minioAPIPort }}
          protocol: TCP
        - port: {{ .Values.minioConsolePort }}
          protocol: TCP
    {{- if .Values.networkPolicy.egress.enabled }}
    - ports:
        {{ .Values.networkPolicy.egress.ports | toJson }}
      {{- with .Values.networkPolicy.egress.to }}
      to:

Bir client fazladan veri göndermeye çalışırsa, bir **error** response alır.

Örneğin, client şu form field'larını göndermeye çalışırsa:

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

`extra` field'ının izinli olmadığını söyleyen bir error response alır:

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

services:
  mysql:
    image: 'mysql:latest'
    ports:
      - "127.0.0.1:9910:3306"
    environment:
      - MYSQL_DATABASE=gorm
      - MYSQL_USER=gorm
      - MYSQL_PASSWORD=gorm
      - MYSQL_RANDOM_ROOT_PASSWORD="yes"
  postgres:
    image: 'postgres:latest'
    ports:
      - "127.0.0.1:9920:5432"
    environment:
      - TZ=Asia/Shanghai
      - POSTGRES_DB=gorm
      - POSTGRES_USER=gorm
      - POSTGRES_PASSWORD=gorm

		}
		switch msgp.UnsafeString(field) {
		case "Totals":
			var zb0002 uint32
			zb0002, err = dc.ReadArrayHeader()
			if err != nil {
				err = msgp.WrapError(err, "Totals")
				return
			}
			if zb0002 != uint32(60) {
				err = msgp.ArrayError{Wanted: uint32(60), Got: zb0002}
				return
			}
			for za0001 := range z.Totals {
				err = z.Totals[za0001].DecodeMsg(dc)
				if err != nil {

Si un cliente intenta enviar datos extra, recibirá un response de **error**.

Por ejemplo, si el cliente intenta enviar los campos de formulario:

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

Recibirá un response de error indicando que el campo `extra` no está permitido:

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

    name: str
    price: float


@app.get("/items/stream", response_class=EventSourceResponse)
async def stream_items() -> AsyncIterable[Item]:
    yield Item(name="Plumbus", price=32.99)
    yield Item(name="Portal Gun", price=999.99)
```

For full control over SSE fields (`event`, `id`, `retry`, `comment`), yield `ServerSentEvent` instances:

```python
from collections.abc import AsyncIterable

from fastapi import FastAPI

回應的 content type 會是 `application/jsonl`（而不是 `application/json`），而本體內容會像這樣：

```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."}
```

它和 JSON 陣列（相當於 Python 的 list）很像，但不同於用 `[]` 包起來並以 `,` 分隔項目，它是每一行各放一個 JSON 物件，彼此以換行字元分隔。

/// info

{* ../../docs_src/request_form_models/tutorial002_an_py310.py hl[12] *}

클라이언트가 추가 데이터를 보내려고 하면 **오류** 응답을 받게 됩니다.

예를 들어, 클라이언트가 폼 필드를 보내려고 하면:

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

`extra` 필드가 허용되지 않는다는 오류 응답을 받게 됩니다:

```json
{
    "detail": [
        {
            "type": "extra_forbidden",
            "loc": ["body", "extra"],