@types/jsonwebtoken

Signing Tokens

This feature allows you to create a JWT by encoding a payload and a secret. The `sign` method takes the payload and the secret key, then returns a token string.

import jwt from 'jsonwebtoken';

const token = jwt.sign({ foo: 'bar' }, 'shhhhh');

Verifying Tokens

This feature enables the verification of a JWT's signature and the extraction of the token's payload. The `verify` method takes the token and the secret key, and either returns the decoded payload or throws an error if the token is invalid.

import jwt from 'jsonwebtoken';

try {
  const decoded = jwt.verify(token, 'shhhhh');
  console.log(decoded);
} catch(err) {
  // handle token verification error
}

Decoding Tokens

This feature allows for the decoding of a JWT without verifying its signature. The `decode` method returns the payload of the token. This is useful for cases where you just need to read the token's payload without needing to validate it.

import jwt from 'jsonwebtoken';

const decoded = jwt.decode(token, { complete: true });
console.log(decoded);