SSE接口一次請(qǐng)求會(huì)分多次響應(yīng)體(chunk)返回, 這就可以表現(xiàn)為流式響應(yīng).
chatgpt對(duì)話窗口幾個(gè)字幾個(gè)字蹦出來(lái)的效果,就使用的這種協(xié)議

python httpx-sse 客戶端 demo

import httpx
from httpx_sse import connect_sse
import json


url = "http://127.0.0.1:8080/streamecho"
param = {
    "text": "你好啊~",
    "num": 100,
    "interval": 0.5
}
with httpx.Client() as client:
    with connect_sse(client, "GET", url, params=param) as event_source:
        # 把 iter_sse() 迭代完, 就相當(dāng)于處理完了一次流式調(diào)用
        for sse in event_source.iter_sse():
            # 流式響應(yīng)中,每次響應(yīng)體的處理邏輯
            chunk_result = json.loads(sse.data)
            # sse.event 獲取 event 類型; sse.data 獲取每次返回的數(shù)據(jù)
            print(sse.event, json.dumps(chunk_result, ensure_ascii=False))
        print()
# message {"part": 0, "text": "你好啊~", "datetime": "2024-09-03 17:53:35.684078"}
# message {"part": 1, "text": "你好啊~", "datetime": "2024-09-03 17:53:36.185339"}
# message {"part": 2, "text": "你好啊~", "datetime": "2024-09-03 17:53:36.686913"}

參考

Server-Sent Events 教程參考: https://www.ruanyifeng.com/blog/2017/05/server-sent_events.html