If you would like to see the entire JSON payload then you can reference this variable: -json If the claim is "foo" and the DecodeJWT policy is named DecodeJWT-1, then the variable name is: .foo Having said that, after the DecodeJWT policy, you can find the claims in this context variable: .CLAIMNAME If this is not what you are doing - if you are not using DecodeJWT and VerifyJWT in concert, then you are probably doing it wrong, and you probably don't want to use DecodeJWT alone. There MAY BE a reason to decode a JWT with the DecodeJWT policy - to retrieve items from the header that may help determine which key to use to verify the signature in a subsequent VerifyJWT policy. Do not rely on, or trust, the claims that you receive from a DecodeJWT policy. That means that it might be a completely contrived JWT with an invalid signature. I highly suggest that you take care when doing this.ĭecodeJWT does not verify the JWT. I personally faced this issue and wanted to share this here.I understand you are using the DecodeJWT policy, and you want to examine the decoded claims.
Note: The reason I have mentioned both the libraries is, sometimes your build pipeline like gitlab/Jenkins complains(for no reason) of having different/incompatible versions of cryptography with PyJWT.However using python-jose on such scenarios would be a quick solution without changing the code. Python-jose is a wrapper on top of PyJWT. For this reason, you should never put secret information like passwords or cryptographic keys in a JWT. Please note that anyone can decode the information contained in a JWT without knowing the private keys.
Jwt decode code#
The code really doesn’t look different from PyJWT. I have used python-jose here just to show that there is no significant difference between these libraries. key = response.json() # get the algorithm type from the request header algorithm = jwt.get_unverified_header(authorisation_token).get('alg') user_info = jwt.decode(token=authorisation_token, key=key, algorithms=algorithm) return user_info import jwt import httpx def decode_access_token(authorisation_token): # get public key from jwks uri response = httpx.get(url="your open id wellknown url to fetch public key") # gives the set of jwks keys.the keys has to be passed as it is to jwt.decode() for signature verification. Now let’s write a python code to decode a JWT token using python-jose. Encode: import jwt def encode_user(): """ encode user payload as a jwt :param user: :return: """ encoded_data = jwt.encode(payload= To name a few,įor our discussion, we will be using PyJWT as the library.
Python provides multiple libraries to encode and decode JSON web tokens.
In most cases, it’s an encoded JSON containing a set of claims and a signature In plain text, JWT, or JSON Web Token, is an open standard used to share information between two parties securely - a client and a server. The claims in a JWT are encoded as a JSON object that is used as the payload of a JSON Web Signature (JWS) structure or as the plaintext of a JSON Web Encryption (JWE) structure, enabling the claims to be digitally signed or integrity protected with a Message Authentication Code(MAC) and/or encrypted. JSON Web Token (JWT) is a compact, URL-safe means of representing claims to be transferred between two parties.
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