JWT gives JsonWebTokenError "invalid token"

jwt verify
jsonwebtokenerror: invalid signature
jwt module
php-jwt
jsonwebtokenerror('jwt must be a string)
jwt signature verification failed
tokenexpirederror: jwt expired
npm jwt-decode

I have used jsonwebtoken for token verification in my Node Application . Here jwt.sign works perfectly . But when jwt.verify gives following error

"auth": false, "message": { "name": "JsonWebTokenError", "message": "invalid token" } }

Here is my Post and Get Router

router.post('/signup',(req,res)=>{
    const body = _.pick(req.body,['username','email_id','name','college','password','dob','gender','city','joinedOn','bio']);
    User.findOne({'username':body.username},function(err,user){
        if(err){
            res.status(404).send(err)
        }else if(user){
            res.status(404).send('User with Username Exists')
        }else{
            var user = new User(body);
            user.save().then((user) => {
                var token = jwt.sign({ username: user.username},'secret', {
                    "algorithm": "HS256",
                    expiresIn: 86400 // expires in 24 hours
                  });
                  res.status(200).send({ auth: true, token: token });
              }, (e) => {
                res.status(400).send(e)
              })
        }
    })

});

router.get('/me', VerifyToken, function(req, res) {

    User.findOne({username:req.username}, function (err, user) {
        if (err) return res.status(500).send(err);
        if (!user) return res.status(404).send("No user found.");
        res.status(200).send(user);
      });

});

Below is verifyToken Function

function verifyToken(req, res, next) {
  var token =  req.headers['x-access-token'];
  if (!token)
    return res.status(403).send({ auth: false, message: 'No token provided.' });
    console.log(token)
  jwt.verify(token,'secret', function(err, decoded) {
    if (err)
    return res.status(500).send({ auth: false, message: err }); 
    //req.username = decoded.username;
    console.log(decoded)
    next();
  });
}

I can't figure out what's wrong in my program .Any suggestions would be appreciated . Thanks

If you are passing in a token to your jwt.verify function like so Bearer *************...., ensure to split the token first before passing it in to jwt by doing

const token = req.headers.authorization.split(' ')[1]; jwt.verify(token)

Hope this helps someone.

"JsonWebTokenError: invalid signature" when verifying JWT signed , I used the debugger at jwt.io to decode it, which gave the option to provide the secret as base64 - which worked on the debugger, but not in my  I'd love to give you a hand with this. Would you be able to provide an example token and the secret you used to sign it so I can take a look. With what you've provided, hard to say - from looking at jjwt your example should be throwing since "my-secret-token-to-change-in-production" is not base64.

I had the same issue. Basically the token should not have brearer information. When I stripped it out it started working as expected.

For instance:

Failed when I used brearer *************....

Worked when I used *************....

[JsonWebTokenError: invalid token] when using a authentication , I have the following header: authorization: 'JWT kjf838.token.8383bfjefjh' When I try to verify the token I get a invalid token error: var token  JsonWebTokenError: jwt malformed #333. Closed glowlabs opened this issue Mar 27, 2017 · 3 comments Closed JsonWebTokenError: jwt malformed #333.

My Code is true . The mistake I was doing that I was giving access token with double quote("token") in Postman. That's why postman was giving me following error

"auth": false, "message": { "name": "JsonWebTokenError", "message": "invalid token" } }

JWT gives JsonWebTokenError “invalid token” - node.js - html, But when jwt.verify gives following error "auth": false, "message": { "name": "​JsonWebTokenError", "message": "invalid token" } } Here is my Post and Get Router  Endpoints requiring authentication with invalid tokens will throw an authentication error. There are two tokens generated: access-token and refresh-token. The access token has a short expiry of 15 minutes and if still valid we send that request straight through to the resolver instead of querying our user table.

when you pass token from service convert into JSON.parse(token) from local storage then pass to verify

Why does jwt.verify() give "invalid signature"?, If the password is correct, a token is created with the method jwt.sign. The token Error handling. Token verification can also cause a JsonWebTokenError. JWT access tokens are regular JWT tokens complying with the requirements described in this section. 2.1. Header. Although JWT access tokens can use any signing algorithm, use of asymmetric algorithms is RECOMMENDED as it simplifies the process of acquiring validation information for resource servers (see Section 4).

Fullstack part4, Package jwt provides an implementation of the JSON Web Token standard. string) (*JSONWebToken, error); func (t *JSONWebToken) Claims(key interface{},​  Whenever we talk about web development and particularly web-application security, we can't walk past these two terms—authentication and authorization.In this article, I want to teach you how to implement JSON Web Token (JWT) authorization with access and refresh tokens in your Angular application.

jwt, Decode the JWT token without verification. This gives you a header JSON object, a claims JSON object, and a signature. Extract the issuer ( iss )  A well-formed JSON Web Token (JWT) consists of three concatenated Base64url-encoded strings, separated by dots (.. Header: contains metadata about the type of token and the cryptographic algorithms used to secure its contents.

Understanding JWT, A tutorial on building a web application in Node that uses JWT (JSON web JsonWebTokenError) { // if the error thrown is because the JWT is  First, it generates a signed JWT token with a static message via a call to /get_token endpoint. For the signature we use a proper public and private key pair. The JWT token can be validated and the message payload decoded using the /verify_token endpoint. If the JWT token is not tampered, the verification endpoint will return the payload to the