token - Decoding HS256 in client side? -

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i'm using json web tokens app.

when login site , want see user logged in, have stored token needed data in encoded in hs256.

should use token payload show "hello ..." , user name inside payload, or should decode token server side , retrieve user data there?

is there client-side library decode hs256 me use? or bad practice , should avoided.

jwt self-contained , protected digital signature. can use information contained in token, should validate expiration time , ensure digital signature has not been altered.

to verify signature on client side need key asymmetrical , use public key verify. may send token server save problems. depends on operation take risk, long token used autenthication on server , performs validation

is there client-side library decode hs256 me use? or bad practice , should avoided.

in fact, not need library. payload base64 url encoded, , can decoded in programming language. need library verify digital signature. take @ jwt.io


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