From the code, the following is the way to verify a token. <div class="snippet-cli

If you take a look at the test cases or the documentation <div class="Box Box--con

Thanks for your response <a class="user-mention notranslate" data-hovercard-type="user

How to determine if verification is successful or not? about jwt-cpp HOT 2 CLOSED

thalhammer commented on July 21, 2024

How to determine if verification is successful or not?

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Comments (2)

Thalhammer commented on July 21, 2024

If you take a look at the test cases or the documentation

jwt-cpp/include/jwt-cpp/jwt.h

Line 1472 in 65b632b

* \throws token_verification_exception Verification failed

you can see that it throws if the verification fails for any reason. The exception might vary depending on the reason of failure, but you know for sure the token is valid if it does not throw.
So you would do something along the lines of this:

bool verify(std::string some_token)
{
        try {
	       auto verifier = jwt::verify().allow_algorithm(jwt::algorithm::hs256{ "secret"}).with_issuer("auth0");
	       verifier.verify(jwt::decode(some_token));
               return true;
        } catch(const std::exception& e) {
               return false;
        }
}

Also note that you can store and reuse a verifier unless the params conditions change. The verifier is designed to do that and it might improve performance.

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bfamzz commented on July 21, 2024

Thanks for your response @Thalhammer I understand better. I will close this issue.

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How to determine if verification is successful or not? about jwt-cpp HOT 2 CLOSED

Comments (2)

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