Apple Signin REST

apple.py

import time;
import requests;
import jwt;

TEAM_ID = ''
BUNDLE_ID = ''
KEY_FILE = './AuthKey_XXXX.p8'
ALG = 'ES256'
KID = ''
CODE_URL = 'https://appleid.apple.com/auth/token'
GRAND_TYPE = 'authorization_code'
AUD_URL = 'https://appleid.apple.com'
AUD_WS = 'appleid.apple.com'
VALIDITY_PERIOD = 180
DAY_SECOND = 86400

header = {'alg': ALG, 'kid': KID}
payload = {
    'iss': TEAM_ID,
    'iat': int(time.time()),
    'exp': int(time.time() + DAY_SECOND * VALIDITY_PERIOD),
    'aud': AUD_URL,
    'sub': BUNDLE_ID
}
private_key = open(KEY_FILE).read()
client_sec = jwt.encode(payload=payload, key=private_key, algorithm=ALG, headers=header)
# .decode('utf-8')
post_data = {
    'client_id': BUNDLE_ID,
    'client_secret': client_sec,
    'code': code,
    'grant_type': GRAND_TYPE
}
login_req = requests.post(url=CODE_URL, data=post_data).json()
print(login_req)