349fcb5ac1
The Python application exposes an endpoint /message for the UI to send messages to. It also exposes an SSE endpoint /sse for the UI to listen to. Every second, the CB sends the current time to UI. ref: N25B-107 ref: N25B-110
40 lines
1.0 KiB
Python
40 lines
1.0 KiB
Python
import asyncio
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from fastapi import FastAPI, Request
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from fastapi.middleware.cors import CORSMiddleware
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from fastapi.responses import StreamingResponse
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from pydantic import BaseModel
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import datetime
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from sse_starlette import EventSourceResponse
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class Message(BaseModel):
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message: str
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app = FastAPI()
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app.add_middleware(
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CORSMiddleware,
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allow_origins=["http://localhost:5173"],
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allow_credentials=True,
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allow_methods=["*"],
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allow_headers=["*"],
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)
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@app.post("/message")
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async def receive_message(message: Message):
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print(f"Received message: {message}")
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return { "status": "Message received" }
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@app.get("/sse")
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async def sse_endpoint(request: Request):
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async def event_generator():
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while True:
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if await request.is_disconnected():
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break
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current_time = datetime.datetime.now().strftime("%H:%M:%S")
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yield f"data: Server time: {current_time}\n\n"
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await asyncio.sleep(1)
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return EventSourceResponse(event_generator())
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