docs_src/websockets/tutorial001.py · 宫宁/FastAPI

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FastAPI

docs_src

websockets

tutorial001.py

tutorial001.py 1.40 KB

from fastapi import FastAPI, WebSocket
from fastapi.responses import HTMLResponse

app = FastAPI()

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("ws://localhost:8000/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>
"""

@app.get("/")
async def get():
 return HTMLResponse(html)

@app.websocket("/ws")
async def websocket_endpoint(websocket: WebSocket):
 await websocket.accept()
 while True:
 data = await websocket.receive_text()
 await websocket.send_text(f"Message text was: {data}")

一键复制编辑原始数据按行查看历史

Sebastián Ramírez 提交于 2020年03月27日 03:09 +08:00 . :sparkles: Add support for docs translations (#1168)

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from fastapi import FastAPI, WebSocket
from fastapi.responses import HTMLResponse

app = FastAPI()

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("ws://localhost:8000/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>
"""


@app.get("/")
async def get():
 return HTMLResponse(html)


@app.websocket("/ws")
async def websocket_endpoint(websocket: WebSocket):
 await websocket.accept()
 while True:
 data = await websocket.receive_text()
 await websocket.send_text(f"Message text was: {data}")