import uuid
import requests
import json
import jwt
import time
from ..config import url_apis
from ..exceptions import BadResponse
from .. import __version__
[docs]
class Authenticator:
def __init__(self, api_key) -> None:
self.api_key = api_key
self._id = uuid.uuid4().hex[:8]
self._token = self.get_new_token()
self._expiration = self._get_expiration()
[docs]
def get_new_token(self):
url = f"{url_apis}/authenticate"
headersList = {
"Content-Type": "application/json"
}
payload = json.dumps({
"api_key": self.api_key,
"client_id": f"btgsolutions-client-python/{__version__}/{self._id}"
})
response = requests.request("POST", url, data=payload, headers=headersList)
if response.status_code == 200:
token = json.loads(response.text).get('AccessToken')
if not token:
raise Exception('Something has gone wrong while authenticating: No token as response.')
else:
response = json.loads(response.text)
raise BadResponse(f'Error: {response.get("ApiClientError")}.\n{response.get("SuggestedAction")}')
return token
def _get_expiration(self):
token_decoded = jwt.decode(self._token, options={"verify_signature": False})
exp = token_decoded.get("exp")
return exp
@property
def token(self):
if int(time.time()) - 5 >= self._expiration: ## Subtracting 5 seconds to avoid edge cases of token expiration during request processing.
self._token = self.get_new_token()
self._expiration = self._get_expiration()
return self._token