pysignalr 0.1.2

Modern, reliable and async-ready client for SignalR protocol

pysignalr

pysignalr is a modern, reliable and async-ready client for SignalR protocol. This project started as an asyncio fork of mandrewcito's signalrcore library.

Usage

Let's connect to TzKT, indexer and explorer of Tezos blockchain, and subscribe to all operations:

import asyncio
from contextlib import suppress
from typing import Any, Dict, List
from pysignalr.client import SignalRClient
from pysignalr.messages import CompletionMessage


async def on_open() -> None:
    print('Connected to the server')


async def on_close() -> None:
    print('Disconnected from the server')


async def on_message(message: List[Dict[str, Any]]) -> None:
    print(f'Received message: {message}')


async def on_error(message: CompletionMessage) -> None:
    print(f'Received error: {message.error}')


async def main():
    client = SignalRClient('https://api.tzkt.io/v1/events')

    client.on_open(on_open)
    client.on_close(on_close)
    client.on_error(on_error)
    client.on('operations', on_message)

    await asyncio.gather(
        client.run(),
        client.send('SubscribeToOperations', [{}]),
    )


with suppress(KeyboardInterrupt, asyncio.CancelledError):
    asyncio.run(main())

Roadmap to the stable release

• More documentation, both internal and user.
• Integration tests with containerized ASP hello-world server.
• Ensure that authentication works correctly.