Jwt verification error

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the url for the key is not working

You need to fetch the key from there and use it in the verify method, not just put the URL as parameter. Check the example on GitHub - auth0/node-jsonwebtoken: JsonWebToken implementation for node.js http://self-issued.info/docs/draft-ietf-oauth-json-web-token.html

// Verify using getKey callback
// Example uses https://github.com/auth0/node-jwks-rsa as a way to fetch the keys.
var jwksClient = require('jwks-rsa');
var client = jwksClient({
  jwksUri: 'https://sandrino.auth0.com/.well-known/jwks.json'
});
function getKey(header, callback){
  client.getSigningKey(header.kid, function(err, key) {
    var signingKey = key.publicKey || key.rsaPublicKey;
    callback(null, signingKey);
  });
}

jwt.verify(token, getKey, options, function(err, decoded) {
  console.log(decoded.foo) // bar
});

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