尝试连接时出现python signalR -500Server错误

Question

我尝试使用此库连接到signalR api

https://pypi.org/project/signalr-client/

以下是我的代码

from requests import Session
from signalr import Connection

with Session() as session:
    #create a connection
    connection = Connection("https://firouzex.exphoenixtrade.com/realtime", session)

    #get chat hub
    chat = connection.register_hub('GetNewAPIToken')

    #start a connection
    connection.start()

但是我得到了这个错误

$ python test.py
Traceback (most recent call last):
  File "test.py", line 12, in <module>
    connection.start()
  File "C:\Users\Rooz\AppData\Local\Programs\Python\Python35\lib\site-packages\signalr\_connection.py", line 47, in start
    negotiate_data = self.__transport.negotiate()
  File "C:\Users\Rooz\AppData\Local\Programs\Python\Python35\lib\site-packages\signalr\transports\_auto_transport.py", line 16, in negotiate
    negotiate_data = Transport.negotiate(self)
  File "C:\Users\Rooz\AppData\Local\Programs\Python\Python35\lib\site-packages\signalr\transports\_transport.py", line 28, in negotiate
    negotiate.raise_for_status()
  File "C:\Users\Rooz\AppData\Local\Programs\Python\Python35\lib\site-packages\requests\models.py", line 940, in raise_for_status
    raise HTTPError(http_error_msg, response=self)
requests.exceptions.HTTPError: 500 Server Error: Internal Server Error for url: https://firouzex.exphoenixtrade.com/realtime/negotiate?clientProtocol=1.5&connectionData=%5B%7B%22name%22%3A+%22GetNewAPIToken%22%7D%5D

Answer 1

我无法重现你的错误。该问题可能是由于损坏或过期的包，也许重新安装可以解决您的问题。SignalR库依赖于这些包

certifi, idna, chardet, urllib3, requests, websocket-client, greenlet, pycparser, cffi, gevent, sseclient, signalr-client

要执行全新安装，请先卸载包

python -m pip uninstall -y certifi, idna, chardet, urllib3, requests, websocket-client, greenlet, pycparser, cffi, gevent, sseclient, signalr-client

然后重新安装

python -m pip install certifi, idna, chardet, urllib3, requests, websocket-client, greenlet, pycparser, cffi, gevent, sseclient, signalr-client --upgrade

Answer 2

您应该使用omsclienttokenhub而不是GetNewAPIToken来注册集线器。您还应该将signalr更改为signalr_aio。

干杯。