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tests/test_sse.py
yield item @app.get("/items/stream-raw", response_class=EventSourceResponse) async def sse_items_raw(): yield ServerSentEvent(raw_data="plain text without quotes") yield ServerSentEvent(raw_data="<div>html fragment</div>", event="html") yield ServerSentEvent(raw_data="cpu,87.3,1709145600", event="csv") router = APIRouter() @router.get("/events", response_class=EventSourceResponse)
Created: Sun Apr 05 07:19:11 GMT 2026 - Last Modified: Sun Mar 01 09:21:52 GMT 2026 - 9.8K bytes - Click Count (0) -
fastapi/sse.py
def _check_data_exclusive(self) -> "ServerSentEvent": if self.data is not None and self.raw_data is not None: raise ValueError( "Cannot set both 'data' and 'raw_data' on the same " "ServerSentEvent. Use 'data' for JSON-serialized payloads " "or 'raw_data' for pre-formatted strings." ) return self def format_sse_event( *,
Created: Sun Apr 05 07:19:11 GMT 2026 - Last Modified: Sun Mar 01 09:21:52 GMT 2026 - 6.2K bytes - Click Count (0) -
fastapi/.agents/skills/fastapi/references/streaming.md
yield ServerSentEvent(data={"status": "started"}, event="status", id="1") yield ServerSentEvent(data={"progress": 50}, event="progress", id="2") ``` Use `raw_data` instead of `data` to send pre-formatted strings without JSON encoding: ```python yield ServerSentEvent(raw_data="plain text line", event="log") ``` ## Stream bytes
Created: Sun Apr 05 07:19:11 GMT 2026 - Last Modified: Sun Mar 01 10:05:57 GMT 2026 - 2.5K bytes - Click Count (0) -
docs/en/docs/tutorial/server-sent-events.md
If you need to send data **without** JSON encoding, use `raw_data` instead of `data`. This is useful for sending pre-formatted text, log lines, or special <dfn title="A value used to indicate a special condition or state">"sentinel"</dfn> values like `[DONE]`. {* ../../docs_src/server_sent_events/tutorial003_py310.py hl[17] *} /// note `data` and `raw_data` are mutually exclusive. You can only set one of them on each `ServerSentEvent`.
Created: Sun Apr 05 07:19:11 GMT 2026 - Last Modified: Thu Mar 05 18:13:19 GMT 2026 - 4.6K bytes - Click Count (0) -
docs_src/server_sent_events/tutorial003_py310.py
Created: Sun Apr 05 07:19:11 GMT 2026 - Last Modified: Sun Mar 01 09:21:52 GMT 2026 - 518 bytes - Click Count (0) -
docs_src/server_sent_events/tutorial005_py310.py
async def stream_chat(prompt: Prompt) -> AsyncIterable[ServerSentEvent]: words = prompt.text.split() for word in words: yield ServerSentEvent(data=word, event="token")
Created: Sun Apr 05 07:19:11 GMT 2026 - Last Modified: Sun Mar 01 09:21:52 GMT 2026 - 528 bytes - Click Count (0) -
docs/zh-hant/docs/tutorial/server-sent-events.md
`data` 欄位一律會以 JSON 編碼。你可以傳入任何可序列化為 JSON 的值,包括 Pydantic 模型。 ## 原始資料 { #raw-data } 如果你需要在**不**進行 JSON 編碼的情況下傳送資料,請使用 `raw_data` 取代 `data`。 這對於傳送已格式化的文字、日誌行或特殊的 <dfn title="用於表示特殊條件或狀態的值">"哨兵"</dfn> 值(例如 `[DONE]`)很有用。 {* ../../docs_src/server_sent_events/tutorial003_py310.py hl[17] *} /// note `data` 與 `raw_data` 互斥。每個 `ServerSentEvent` 只能設定其中一個。 /// ## 使用 `Last-Event-ID` 繼續 { #resuming-with-last-event-id }Created: Sun Apr 05 07:19:11 GMT 2026 - Last Modified: Fri Mar 20 14:33:04 GMT 2026 - 4.6K bytes - Click Count (0) -
docs/ko/docs/tutorial/server-sent-events.md
## 원시 데이터 { #raw-data } JSON 인코딩 없이 데이터를 보내야 한다면, `data` 대신 `raw_data`를 사용하세요. 미리 포맷된 텍스트, 로그 라인, 또는 `[DONE]`과 같은 특수한 <dfn title="특수한 조건이나 상태를 나타내는 데 사용되는 값">"센티널"</dfn> 값을 보낼 때 유용합니다. {* ../../docs_src/server_sent_events/tutorial003_py310.py hl[17] *} /// note | 참고 `data`와 `raw_data`는 상호 배타적입니다. 각 `ServerSentEvent`에는 이 둘 중 하나만 설정할 수 있습니다. ///Created: Sun Apr 05 07:19:11 GMT 2026 - Last Modified: Thu Mar 19 18:56:39 GMT 2026 - 5.3K bytes - Click Count (0) -
docs/ja/docs/tutorial/server-sent-events.md
## 生データ { #raw-data } JSON エンコードせずにデータを送る必要がある場合は、`data` の代わりに `raw_data` を使用します。 これは、整形済みテキスト、ログ行、または `[DONE]` のような特別な <dfn title="特別な条件や状態を示すために用いられる値">"センチネル"</dfn> 値を送るのに有用です。 {* ../../docs_src/server_sent_events/tutorial003_py310.py hl[17] *} /// note | 備考 `data` と `raw_data` は相互排他的です。各 `ServerSentEvent` ではどちらか一方しか設定できません。 ///Created: Sun Apr 05 07:19:11 GMT 2026 - Last Modified: Thu Mar 19 18:55:22 GMT 2026 - 5.8K bytes - Click Count (0) -
docs/de/docs/tutorial/server-sent-events.md
Das ist nützlich zum Senden vorformatierter Texte, Logzeilen oder spezieller <dfn title="Ein Wert, der verwendet wird, um eine besondere Bedingung oder einen besonderen Zustand anzuzeigen">„Sentinel“</dfn>-Werte wie `[DONE]`. {* ../../docs_src/server_sent_events/tutorial003_py310.py hl[17] *} /// note | Hinweis
Created: Sun Apr 05 07:19:11 GMT 2026 - Last Modified: Thu Mar 19 17:48:21 GMT 2026 - 5.1K bytes - Click Count (0)