Why am I getting "signature is invalid (Code = 40110000)" error?

Alpaca Integration Applications
1

With my oAuth access token with live trading, the following call succeeds:

GET https://api.alpaca.markets/v2/positions/MSFT

However the following call fails:

GET https://data.alpaca.markets/v1/last/stocks/MSFT

with error: signature is invalid (Code = 40110000)

It has been working for a week or so, then it started producing above error. Thought there might be a problem with the access token. So I regenerated one. Still getting the same error.

What does this error actually mean?

2

This morning it (data.alpaca.markets) started throwing this error:


403 Forbidden

403 Forbidden


nginx

3

Yes, I got this message too few time on paper account

4

I think these errors are because two certificates are presented, one of which is invalid (CN=Kubernetes Ingress Controller Fake Certificate).

5

Today, the alpaca support responded to my email regarding this error. They fixed the issue and it is now working for me.

6

This has randomly happened to me, but it appears to be related to the /bars/ endpoint:

Traceback (most recent call last):

File “/usr/local/lib/python3.8/site-packages/alpaca_trade_api/rest.py”, line 140, in _one_request

resp.raise_for_status()

File “/usr/local/lib/python3.8/site-packages/requests/models.py”, line 940, in raise_for_status

raise HTTPError(http_error_msg, response=self)

requests.exceptions.HTTPError: 401 Client Error: Unauthorized for url: https://data.alpaca.markets/v1/bars/day?symbols=TLRY%2CSPWR%2CMP%2CMARA%2CGME&limit=20

During handling of the above exception, another exception occurred:

Traceback (most recent call last):

File “/usr/local/lib/python3.8/site-packages/django/core/handlers/exception.py”, line 34, in inner

response = get_response(request)

File “/usr/local/lib/python3.8/site-packages/django/core/handlers/base.py”, line 115, in _get_response

response = self.process_exception_by_middleware(e, request)

File “/usr/local/lib/python3.8/site-packages/django/core/handlers/base.py”, line 113, in _get_response

response = wrapped_callback(request, *callback_args, **callback_kwargs)

File “/usr/local/lib/python3.8/site-packages/django/utils/decorators.py”, line 142, in _wrapped_view

response = view_func(request, *args, **kwargs)

File “/usr/local/lib/python3.8/site-packages/django/contrib/auth/decorators.py”, line 21, in _wrapped_view

return view_func(request, *args, **kwargs)

File “/ap/alpaca/views.py”, line 223, in positions

bars = api_test.get_barset(sym_list, ‘day’, 20)

File “/usr/local/lib/python3.8/site-packages/alpaca_trade_api/rest.py”, line 456, in get_barset

resp = self.data_get(’/bars/{}’.format(timeframe), params)

File “/usr/local/lib/python3.8/site-packages/alpaca_trade_api/rest.py”, line 172, in data_get

return self._request(

File “/usr/local/lib/python3.8/site-packages/alpaca_trade_api/rest.py”, line 119, in _request

return self._one_request(method, url, opts, retry)

File “/usr/local/lib/python3.8/site-packages/alpaca_trade_api/rest.py”, line 148, in _one_request

raise APIError(error, http_error)

alpaca_trade_api.rest.APIError: token is not authorized for this scope (Code = 40110000)