QSH Verification, I have tried to verify qsh string but i get a "abc" qsh instead of the "def" qsh from the JWT token

I have used this video to properly understand how JWT QSH is created from a SHA hashed conical request

I also have gone through, this site Understanding JWT. https://developer.atlassian.com/cloud/jira/platform/understanding-jwt-for-connect-apps/.
I have replicated everything done there, and still confused. I have never been able to reproduce the qsh.

 if (verifiedClaims.qsh) {
            const { baseUrl } = payload;
            const url = JWTHelper.decodeUrlToMatchJWTQueryStringHash(baseUrl);
            logger.debug(`url[${url}]`);
            const req = jwt.fromMethodAndUrl("GET", url);
            logger.debug(`req[${JSON.stringify(req)}]`);
            let expectedHash = jwt.createQueryStringHash(req);
            logger.debug(`expectedHash[${expectedHash}]`);
            let signatureHashVerified = verifiedClaims.qsh === expectedHash;

            logger.json("signatureHashVerified", { qsh: verifiedClaims.qsh, expectedHash, signatureHashVerified });

            if (!signatureHashVerified) {
                // If signatureVerified is false, then check the url if its a PUT/POST
                expectedHash = jwt.createQueryStringHash(req, url);
                signatureHashVerified = verifiedClaims.qsh === expectedHash;
                logger.json("signatureHashVerified", { qsh: verifiedClaims.qsh, expectedHash, signatureHashVerified });

                if (verifiedClaims.qsh !== expectedHash && verifiedClaims.qsh  !== "context-qsh") {
                    const canonicalRequest = jwt.createCanonicalRequest(req, true, url);

                    logger.error(
                        'Auth failure: Query hash mismatch: Received: "' + verifiedClaims.qsh + '" but calculated "' + expectedHash + '". ' +
                        'Canonical query was: "' + canonicalRequest);
                    throw new Error("Authentication failed: query hash does not match.");
                }
            }
        }

The code above is from the Link, understanding jwt. I am using atlassian-jwt npm package
atlassian-jwt - npm.

Please where am I getting it all wrong, from my codes or from any perspective what can I do to fix the issue and verify qsh