def __get_auth(self):
'''Return auth headers. Will use API Keys if present in settings.'''
if self.shouldAuth is False:
return []
self.logger.info("Authenticating with API Key.")
# To auth to the WS using an API key, we generate a signature of a nonce and
# the WS API endpoint.
nonce = generate_nonce()
return [
"api-nonce: " + str(nonce), "api-signature: " + generate_signature(
settings.API_SECRET, 'GET', '/realtime', nonce, ''),
"api-key:" + settings.API_KEY
]
def __call__(self, r):
"""
Called when forming a request - generates api key headers. This call uses `expires` instead of nonce.
This way it will not collide with other processes using the same API Key if requests arrive out of order.
For more details, see https://www.bitmex.com/app/apiKeys
"""
# modify and return the request
expires = int(round(time.time()) +
5) # 5s grace period in case of clock skew
r.headers['api-expires'] = str(expires)
r.headers['api-key'] = self.apiKey
r.headers['api-signature'] = generate_signature(
self.apiSecret, r.method, r.url, expires, r.body or '')
return r