Async fork of Python SignalR Core client(json and messagepack), with invocation auth and two way streaming. Compatible with azure / serverless functions. Also with automatic reconnect and manually reconnect.
Project description
SignalR core client (async fork)
This is asyncio version of the original SignalR Core library.
The main difference is that websocket
library is replaced with asyncio-compatabile websockets
.
All future changes in the original repo will be merged to this fork inheriting the major and minor version number.
Installation
pip install aiosignalrcore
Usage
Check out the docs of the original library.
The names of all modules, classes, and methods are preserved.
Async example
import asyncio
import logging
from aiosignalrcore.hub_connection_builder import HubConnectionBuilder
from aiosignalrcore.messages.completion_message import CompletionMessage
from aiosignalrcore.transport.websockets.connection import ConnectionState
hub_connection = (
HubConnectionBuilder()
.with_url('%URL%')
.with_automatic_reconnect(
{
"type": "raw",
"keep_alive_interval": 10,
"reconnect_interval": 5,
"max_attempts": 5,
}
)
.build()
)
async def on_connect():
logging.info('Connected to the server')
while hub_connection.transport.state != ConnectionState.connected:
await asyncio.sleep(0.1)
await hub_connection.send("SendMessage", [])
async def on_message(message):
pass
def on_error(self, message: CompletionMessage):
raise Exception(message.error)
hub_connection.on_open(on_connect)
hub_connection.on_error(on_error)
hub_connection.on("Message", on_message)
await hub_connection.start()
try:
while hub_connection.transport.state == ConnectionState.connected:
await asyncio.sleep(1)
except KeyboardInterrupt:
pass
finally:
await hub_connection.stop()
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