Generating a JWT token

main.py

from __future__ import absolute_import

#
# To run:
#
# $ pip install pyjwt
# $ python main.py
#

import jwt

ISSUER = '8eb12629d265493588af989decb91209'
IAT = '1516239022'
EXP = '1526239022'


def _get_private_key():
    # File private_key.pem generated using `openssl genpkey -algorithm RSA -out private_key.pem -pkeyopt rsa_keygen_bits:4096`
    with open('private_key.pem', 'r') as f:
        return f.read()


def build_jwt_token(subject='sys'):
    payload = {
        'sub': subject,
        'iss': ISSUER,
        'iat': IAT,
        'exp': EXP,
    }

    private_key = _get_private_key()

    return jwt.encode(payload, key=private_key, algorithm='RS256').decode('utf-8')


if __name__ == '__main__':
    print('sys token: ' + build_jwt_token())
    print('user token: ' + build_jwt_token('usr:123123-123123-45325'))