How do I run Flask application Web server gives ssl error

Question

I am running a basic web server with a Flask application over HTTPS, call it https://myappserver:5000 Everything works fine until I need to make a call to an external API, alpha vantage. As soon as I request the data with something like data = ti.get_sma(symbol=symbol, interval='daily', time_period=60) I get an error that looks like this:

  File "/usr/local/lib/python2.7/dist-packages/flask/app.py", line 1813, in 
  full_dispatch_request
    rv = self.dispatch_request()
  File "/usr/local/lib/python2.7/dist-packages/flask/app.py", line 1799, in 
  dispatch_request
    return self.view_functions[rule.endpoint](**req.view_args)
  File "myflask.py", line 18, in add_numbers
    data = get_data(a, hashvalue)
  File "/opt/app/Get_Data.py", line 15, in get_data
    sma60, _ = ti.get_sma(symbol=symbol, interval='daily', time_period=60)
  File "/usr/local/lib/python2.7/dist-packages/alpha_vantage/alphavantage.py", 
  line 175, in _format_wrapper
    self, *args, **kwargs)
  File "/usr/local/lib/python2.7/dist-packages/alpha_vantage/alphavantage.py", 
  line 160, in _call_wrapper
    return self._handle_api_call(url), data_key, meta_data_key
  File "/usr/local/lib/python2.7/dist-packages/alpha_vantage/alphavantage.py", 
  line 76, in _retry_wrapper
    return func(self, *args, **kwargs)
  File "/usr/local/lib/python2.7/dist-packages/alpha_vantage/alphavantage.py", 
  line 268, in _handle_api_call
    response = requests.get(url, proxies=self.proxy)
  File "/usr/local/lib/python2.7/dist-packages/requests/api.py", line 72, in get
    return request('get', url, params=params, **kwargs)
  File "/usr/local/lib/python2.7/dist-packages/requests/api.py", line 58, in 
  request
    return session.request(method=method, url=url, **kwargs)
  File "/usr/local/lib/python2.7/dist-packages/requests/sessions.py", line 508, 
  in request
    resp = self.send(prep, **send_kwargs)
  File "/usr/local/lib/python2.7/dist-packages/requests/sessions.py", line 640, 
  in send
    history = [resp for resp in gen] if allow_redirects else []
  File "/usr/local/lib/python2.7/dist-packages/requests/sessions.py", line 218, 
  in resolve_redirects
    **adapter_kwargs
  File "/usr/local/lib/python2.7/dist-packages/requests/sessions.py", line 618, 
  in send
    r = adapter.send(request, **kwargs)
  File "/usr/local/lib/python2.7/dist-packages/requests/adapters.py", line 506, 
  in send
    raise SSLError(e, request=request)
  SSLError: HTTPSConnectionPool(host='www.alphavantage.co', port=443): Max 
  retries exceeded with url: /query?function
  =SMA&symbol=DATA&interval=daily&time_period=60&series_type=close&apikey=<API key> (Caused by SSLError(SSLErr
or("bad handshake: Error([('SSL routines', 'tls_process_server_certificate', 'certificate verify failed')],)",),))
209.249.175.115 - - [27/Sep/2018 17:11:56] "GET /_add_numbers?a=DATA HTTP/1.1" 500 -

Can someone please shed some light on what I would be doing wrong in this situation? If my web server is running on HTTP then this whole process works just fine. Thanks.

Have you tried solution from following link, its kind similar error : https://stackoverflow.com/questions/47208466/sslerrorbad-handshake-when-trying-to-access-resources-custom-certificates-an — Rishikesh Teke, Sep 27 '18 at 18:43
It is similar, but it doesn't look like there has been a resolution. do I need to pass my certicate and key when I make a request to an external API URL? — shazeltion17, Sep 27 '18 at 18:56

How do I run Flask application Web server gives ssl error

Can someone please shed some light on what I would be doing wrong in this situation? If my web server is running on HTTP then this whole process works just fine. Thanks.

0 Answers0