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52 lines
1.4 KiB
Python
52 lines
1.4 KiB
Python
from fastapi import FastAPI, WebSocket
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from fastapi.responses import HTMLResponse
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app = FastAPI()
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html = """
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<!DOCTYPE html>
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<html>
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<head>
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<title>Chat</title>
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</head>
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<body>
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<h1>WebSocket Chat</h1>
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<form action="" onsubmit="sendMessage(event)">
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<input type="text" id="messageText" autocomplete="off"/>
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<button>Send</button>
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</form>
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<ul id='messages'>
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</ul>
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<script>
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var ws = new WebSocket("ws://localhost:8000/ws");
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ws.onmessage = function(event) {
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var messages = document.getElementById('messages')
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var message = document.createElement('li')
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var content = document.createTextNode(event.data)
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message.appendChild(content)
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messages.appendChild(message)
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};
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function sendMessage(event) {
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var input = document.getElementById("messageText")
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ws.send(input.value)
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input.value = ''
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event.preventDefault()
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}
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</script>
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</body>
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</html>
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"""
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@app.get("/")
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async def get():
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return HTMLResponse(html)
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@app.websocket("/ws")
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async def websocket_endpoint(websocket: WebSocket):
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await websocket.accept()
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while True:
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data = await websocket.receive_text()
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await websocket.send_text(f"Message text was: {data}")
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