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routes.py
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from fastapi import APIRouter, WebSocket, WebSocketDisconnect
from fastapi.responses import HTMLResponse
from ws_handler import ws_handler
router = APIRouter()
html = """
<!DOCTYPE html>
<html>
<head>
<title>Chat</title>
</head>
<body>
<h1>WebSocket Chat</h1>
<form action="" onsubmit="sendMessage(event)">
<input type="text" id="messageText" autocomplete="off"/>
<button>Send</button>
</form>
<ul id='messages'>
</ul>
<script>
var ws = new WebSocket("wss://ad7479926bd5.ngrok.io/ws");
ws.onmessage = function(event) {
var messages = document.getElementById('messages')
var message = document.createElement('li')
var content = document.createTextNode(event.data)
message.appendChild(content)
messages.appendChild(message)
};
function sendMessage(event) {
var input = document.getElementById("messageText")
ws.send(input.value)
input.value = ''
event.preventDefault()
}
</script>
</body>
</html>
"""
@router.get("/")
async def get():
return HTMLResponse(html)
@router.websocket('/ws')
async def ws(websocket: WebSocket):
await websocket.accept()
id_ = await ws_handler.new_connect(websocket)
while True:
try:
data = await websocket.receive_text()
except WebSocketDisconnect:
await ws_handler.delete_connection(id_=id_)
break
await ws_handler.handle_message(
id_=id_,
data=data,
)