y_sweet_sdk

Usage

from y_sweet_sdk import DocumentManager

# Get the websocket url for a document.
doc = DocumentManager('ys://localhost:8080')
url = doc.get_websocket_url('my-document-id')

# Connect to the document using y_py and ypy_websocket.
# (Based on: https://davidbrochart.github.io/ypy-websocket/usage/client/)
from ypy_websocket import WebsocketProvider
import y_py as Y
from websockets import connect
import asyncio

ydoc = Y.YDoc()

# Simple example: log the array "todolist" to stdout every time it changes.
data = ydoc.get_array("todolist")
def data_changed(event: Y.AfterTransactionEvent):
    print(f"data changed: {data.to_json()}")

data.observe_deep(data_changed)

async with (
    connect(url) as websocket,
    WebsocketProvider(ydoc, websocket),
):
    await asyncio.Future()  # run forever

y_sweet_sdk is only used to talk directly with the Y-Sweet server to obtain a WebSocket URL to pass to a client. Use a Yjs client like ypy-websocket or pycrdt in conjunction with y_sweet_sdk to access the actual Y.Doc data.

Installation

For development installation with test dependencies:

pip install -e ".[dev]"

Tests

First run a y-sweet server:

npx y-sweet serve

Then run the tests:

pytest

Development

Run ruff format to format before committing changes.