I had to do this with a different API the toehr year, and made this
method:
def auth_token(self):
''' Obtain a current auth token [...]
Refreshes the cached token if stale.
'''
while True:
with self._auth_token_lock:
token = self._auth_token
if (token and token.timestamp + FM_TOKEN_LIFESPAN -
FM_TOKEN_LIFESPAN_SKEW > time.time()):
break
try:
token = self._get_new_auth_token()
except Exception as e:
error("error fetching token: %s", e)
else:
if token:
self._auth_token = token
break
error("token not refreshed, delay then retry")
time.sleep(self.DEFAULT_RETRY_DELAY)
return token
The "while True" bit was because the server was flakey and sometime you
just had to wait for it to come back.
Then I just called this to obtain a current token whenever I needed a
token. in the API, for example:
headers = {'Authorization': 'Bearer ' + self.auth_token().token}
Means you don't have to embed verbose checks all through your code -
just grab "the token" and proceeed.
Cheers,
Cameron Simpson <c...@cskk.id.au>
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