Are there some methods get encrypt algorithm of a token?

[superbogy]

Decode a base64 encode token get the payload info, look like :

{"typ":"JWT","alg":"HS256","jti":"e6ca395f2a6479f9a84739e339544aec"}

Now I want to get the alg: HS256 item of a encode token, How should I do or I need to handle the string by myself?

[gbrlsnchs]

Since your payload is already decoded, simply unmarshal it to have access to claims and header fields:

var jot jwt.JWT

if err = jwt.Unmarshal(decodedPayload, &jot); err != nil {
    // ...
}

fmt.Println(jot.Algorithm())

Please tell me if this solves your issue. 😄

[superbogy]

thank u