Python Microservices Development

PyJWT

In Python, the PyJWT (https://pyjwt.readthedocs.io/) library provides all the tools you need to generate and read back JWT tokens.

Once you've pip-installed pyjwt (and cryptography), you can use the encode() function and the decode() functions to create tokens.

In the following example, we're creating a JWT token using HMAC-SHA256 and reading it back. The signature is verified when the token is read, by providing the secret:

>>> import jwt 
 
>>> def create_token(alg='HS256', secret='secret', **data): 
...     return jwt.encode(data, secret, algorithm=alg) 
... 
>>> def read_token(token, secret='secret', algs=['HS256']): 
...     return jwt.decode(token, secret) 
... 
>>> token = create_token(some='data', inthe='token') 
>>> print(token) b'eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJpbnRoZSI6InRva2VuIiwic29tZSI6ImRhdGEifQ.oKmFaNV-C2wHb_WaMAfIGDqBPnOCyOzVf-JWvh-6bRQ' ...