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1f01ce9615
* Updated .py files with Optional tag (up to body_nested_models) * Update optionals * docs_src/ all updates, few I was unsure of * Updated markdown files with Optional param * es: Add Optional typing to index.md * Last of markdown files updated with Optional param * Update highlight lines * it: Add Optional typings * README.md: Update with Optional typings * Update more highlight increments * Update highlights * schema-extra-example.md: Update highlights * updating highlighting on website to reflect .py changes * Update highlighting for query-params & response-directly * Address PR comments * Get rid of unnecessary comment * ⏪ Revert Optional in Chinese docs as it probably also requires changes in text * 🎨 Apply format * ⏪ Revert modified example * ♻️ Simplify example in docs * 📝 Update OpenAPI callback example to use Optional * ✨ Add Optional types to tests * 📝 Update docs about query params, default to using Optional * 🎨 Update code examples line highlighting * 📝 Update nested models docs to use "type parameters" instead of "subtypes" * 📝 Add notes about FastAPI usage of None including: = None and = Query(None) and clarify relationship with Optional[str] * 📝 Add note about response_model_by_alias * ♻️ Simplify query param list example * 🔥 Remove test for removed example * ✅ Update test for updated example Co-authored-by: Christopher Nguyen <chrisngyn99@gmail.com> Co-authored-by: yk396 <yk396@cornell.edu> Co-authored-by: Kai Chen <kaichen120@gmail.com>
84 lines
2.7 KiB
Python
84 lines
2.7 KiB
Python
from typing import Optional
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from fastapi import Cookie, Depends, FastAPI, Query, WebSocket, status
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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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<label>Item ID: <input type="text" id="itemId" autocomplete="off" value="foo"/></label>
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<label>Token: <input type="text" id="token" autocomplete="off" value="some-key-token"/></label>
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<button onclick="connect(event)">Connect</button>
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<hr>
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<label>Message: <input type="text" id="messageText" autocomplete="off"/></label>
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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 = null;
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function connect(event) {
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var itemId = document.getElementById("itemId")
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var token = document.getElementById("token")
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ws = new WebSocket("ws://localhost:8000/items/" + itemId.value + "/ws?token=" + token.value);
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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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event.preventDefault()
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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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async def get_cookie_or_token(
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websocket: WebSocket,
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session: Optional[str] = Cookie(None),
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token: Optional[str] = Query(None),
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):
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if session is None and token is None:
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await websocket.close(code=status.WS_1008_POLICY_VIOLATION)
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return session or token
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@app.websocket("/items/{item_id}/ws")
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async def websocket_endpoint(
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websocket: WebSocket,
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item_id: str,
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q: Optional[int] = None,
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cookie_or_token: str = Depends(get_cookie_or_token),
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):
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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(
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f"Session cookie or query token value is: {cookie_or_token}"
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)
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if q is not None:
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await websocket.send_text(f"Query parameter q is: {q}")
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await websocket.send_text(f"Message text was: {data}, for item ID: {item_id}")
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