Patrick Strawderman <******@****.***> 1765550827 -0800

从 `fastapi.sse` 导入 `EventSourceResponse`：

{* ../../docs_src/server_sent_events/tutorial001_py310.py ln[1:25] hl[4,22] *}

每个被 yield 的项会被编码为 JSON，并放入 SSE 事件的 `data:` 字段发送。

如果你将返回类型声明为 `AsyncIterable[Item]`，FastAPI 将使用它通过 Pydantic对数据进行**校验**、**文档化**和**序列化**。

{* ../../docs_src/server_sent_events/tutorial001_py310.py ln[1:25] hl[10:12,23] *}

/// tip | 提示

由于 Pydantic 会在**Rust** 端序列化它，相比未声明返回类型，你将获得更高的**性能**。

///

`EventSourceResponse`는 `fastapi.sse`에서 임포트합니다:

{* ../../docs_src/server_sent_events/tutorial001_py310.py ln[1:25] hl[4,22] *}

각 `yield`된 항목은 JSON으로 인코딩되어 SSE 이벤트의 `data:` 필드로 전송됩니다.

반환 타입을 `AsyncIterable[Item]`으로 선언하면 FastAPI가 이를 사용해 데이터를 Pydantic으로 **검증**, **문서화**, **직렬화**합니다.

{* ../../docs_src/server_sent_events/tutorial001_py310.py ln[1:25] hl[10:12,23] *}

/// tip | 팁

pkg debug/elf, const R_AARCH64_P32_TLSDESC_ADR_PREL21 R_AARCH64
pkg debug/elf, const R_AARCH64_P32_TLSDESC_CALL = 127
pkg debug/elf, const R_AARCH64_P32_TLSDESC_CALL R_AARCH64
pkg debug/elf, const R_AARCH64_P32_TLSDESC_LD32_LO12_NC = 125
pkg debug/elf, const R_AARCH64_P32_TLSDESC_LD32_LO12_NC R_AARCH64
pkg debug/elf, const R_AARCH64_P32_TLSDESC_LD_PREL19 = 122
pkg debug/elf, const R_AARCH64_P32_TLSDESC_LD_PREL19 R_AARCH64

`EventSourceResponse` は `fastapi.sse` からインポートします:

{* ../../docs_src/server_sent_events/tutorial001_py310.py ln[1:25] hl[4,22] *}

yield された各アイテムは JSON にエンコードされ、SSE イベントの `data:` フィールドで送信されます。

戻り値の型を `AsyncIterable[Item]` と宣言すると、FastAPI は Pydantic を用いてデータを**検証**、**ドキュメント化**、**シリアライズ**します。

{* ../../docs_src/server_sent_events/tutorial001_py310.py ln[1:25] hl[10:12,23] *}

/// tip | 豆知識

	return ww.writeFrame(w, frame)
}

// writeFrame writes frame binary representation into w.
func (ww *wsWriter) writeFrame(w io.Writer, f ws.Frame) error {
	const (
		bit0  = 0x80
		len7  = int64(125)
		len16 = int64(^(uint16(0)))
		len64 = int64(^(uint64(0)) >> 1)
	)

	bts := ww.tmp[:]
	if f.Header.Fin {
		bts[0] |= bit0
	}
	bts[0] |= f.Header.Rsv << 4

  - [beta] Kubelet integrates with memcg notification API to detect when a hard eviction threshold is crossed ([kubernetes/features#125](https://github.com/kubernetes/enhancements/issues/125))

	}
}

func TestDecoderFlat(t *testing.T) {
	var (
		counter int
		mv      *MetaValue
		body    = `[
  "1st test string",
  "Roberto*Maestro", "Charles",
  0, null, false,
  1, 2.5
]`
		expected = []struct {
			Value     any
			ValueType ValueType
		}{
			{
				"1st test string",
				String,
			},
			{
				"Roberto*Maestro",
				String,
			},
			{
				"Charles",

apsed-card .card-footer{display:none}.card .nav.flex-column:not(.nav-sidebar)>li{border-bottom:1px solid rgba(0,0,0,.125);margin:0}.card .nav.flex-column:not(.nav-sidebar)>li:last-of-type{border-bottom:0}.card.height-control .card-body{max-height:300px;overflow:auto}.card .border-right{border-right:1px solid rgba(0,0,0,.125)}.card .border-left{border-left:1px solid rgba(0,0,0,.125)}.card.card-tabs:not(.card-outline)>.card-header{border-bottom:0}.card.card-tabs:not(.card-outline)>.card-header .nav-item:first-child...

    - [Client Binaries](#client-binaries-4)
    - [Server Binaries](#server-binaries-4)
    - [Node Binaries](#node-binaries-4)
  - [Changelog since v1.12.5](#changelog-since-v1125)
    - [Other notable changes](#other-notable-changes-4)
- [v1.12.5](#v1125)
  - [Downloads for v1.12.5](#downloads-for-v1125)
    - [Client Binaries](#client-binaries-5)
    - [Server Binaries](#server-binaries-5)
    - [Node Binaries](#node-binaries-5)