Print firebase access token for remote config scope

print_access_token.py

###
#
# install oauth2client before running
# pip3 install --upgrade oauth2client or pip install --upgrade oauth2client
#
###

from oauth2client.service_account import ServiceAccountCredentials
import sys

if(len(sys.argv) == 1):
    print 'Usage: print.py <private key json file>'
    sys.exit(1)
privatekeyfile = sys.argv[1]
scopes = ["https://www.googleapis.com/auth/firebase.remoteconfig"]

credentials = ServiceAccountCredentials.from_json_keyfile_name(privatekeyfile, scopes=scopes)
access_token_info = credentials.get_access_token()
print("Access token: " + access_token_info.access_token)