How do I set the expiry time on my JWT?

How do I set the expiry time on my JWT?

The most common solution is to reduce the duration of the JWT and revoke the refresh token so that the user can’t generate a new JWT. With this setup, the JWT’s expiration duration is set to something short (5-10 minutes) and the refresh token is set to something long (2 weeks or 2 months).

What is the default expiration time of JWT token?

The JWT access token is only valid for a finite period of time. Using an expired JWT will cause operations to fail. As you saw above, we are told how long a token is valid through expires_in. This value is normally 1200 seconds or 20 minutes.

What format is the EXP expiration time claim in a JWT?

A JSON numeric value representing the number of seconds from 1970-01-01T00:00:00Z UTC until the specified UTC date/time, ignoring leap seconds. This is equivalent to the IEEE Std 1003.1, 2013 Edition [POSIX.

How often should JWT expire?

JWT Token has an expiration of 2 hours. The token is refreshed every hour by the client. If the user token is not refreshed (user is inactive and the app is not open) and expires, they will need to log in whenever they want to resume.

How do I fix JWT expired?

There are three ways:

1. Changing the secret key. This will revoke all tokens of all users, which is not acceptable.
2. Make each user has his own secret and just change the secret of a specified user. Now the RESTful backend is not stateless anymore.
3. Store the revoked JWT tokens in Redis.

How do I know if my JWT token is expired node JS?

If that is the case, have a look at the jwt. verify method: jwt. verify(token, ‘shhhhh’, function(err, decoded) { if (err) { /* err = { name: ‘TokenExpiredError’, message: ‘jwt expired’, expiredAt: 1408621000 } */ } });

What is JWT expiration?

1. How to hadle JWT expiration. A JWT token that never expires is dangerous if the token is stolen then someone can always access the user’s data. Quoted from JWT RFC: The “exp” (expiration time) claim identifies the expiration time on or after which the JWT MUST NOT be accepted for processing.

How long should JWTs last?

This is why JWTs have an expiry value. And these values are kept short. Common practice is to keep it around 15 minutes, so that any leaked JWTs will cease to be valid fairly quickly. But also, make sure that JWTs don’t get leaked.

What does it mean to have a JWT that does not expire?

I said until recently above, because with the advent of JWT, JSON Web Tokens, JWT usually acts as a stateless token. The server has no knowledge of that token other than what the token self-describes. This is also called an assertion. There are of course mitigations to keep people from asserting things such as signing the token.

Is the EXP claim of a JWT token optional?

The exp claim of a JWT is optional. If a token does not have it it is considered that it does not expire According to documentation of https://www.npmjs.com/package/jsonwebtoken the expiresIn field does not have a default value either, so just omit it.

How to decode the expiry date in JS?

Like James has pointed out: The number is the number of seconds since Jan 1 1970. This is converted into the Date object in a quite straight-forward way (the *1000 part is here because in JS main time unit is millisecond):

How to decode the expiry date in Ruby?

The number is the number of seconds since Jan 1 1970. This is converted into the Date object in a quite straight-forward way (the *1000 part is here because in JS main time unit is millisecond): Then you can use any Date method you please. Likewise, in Ruby you can use Time.at (1473912000) to create a new Time instance like Maxim has shown.