Get a bearer token for Twitter application-only requests in Python3

get-bearer-token-twitter-api

#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
# Copyright (C) 2015-2018 Bitergia
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA.
#
# Authors:
#     Valerio Cosentino <valcos@bitergia.com>
#

from __future__ import print_function

import base64
import requests
import urllib.parse

OAUTH2_TOKEN = 'https://api.twitter.com/oauth2/token'


def get_bearer_token(consumer_key, consumer_secret):
    # enconde consumer key
    consumer_key = urllib.parse.quote(consumer_key)
    # encode consumer secret
    consumer_secret = urllib.parse.quote(consumer_secret)
    # create bearer token
    bearer_token = consumer_key + ':' + consumer_secret
    # base64 encode the token
    base64_encoded_bearer_token = base64.b64encode(bearer_token.encode('utf-8'))
    # set headers
    headers = {
        "Authorization": "Basic " + base64_encoded_bearer_token.decode('utf-8') + "",
        "Content-Type": "application/x-www-form-urlencoded;charset=UTF-8",
        "Content-Length": "29"}

    response = requests.post(OAUTH2_TOKEN, headers=headers, data={'grant_type': 'client_credentials'})
    to_json = response.json()
    print("token_type = %s\naccess_token  = %s" % (to_json['token_type'], to_json['access_token']))


def main():
    consumer_key = input('Enter your consumer key: ')
    consumer_secret = input('Enter your consumer secret: ')
    print("***** ***** ***** *****")
    get_bearer_token(consumer_key, consumer_secret)


if __name__ == "__main__":
    main()

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