middleware/auth-utils/token.js
function Token (token, clientId) {
  this.token = token;
  this.clientId = clientId;

  if (token) {
    try {
      const parts = token.split('.');
      this.header = JSON.parse(Buffer.from(parts[0], 'base64').toString());
      this.content = JSON.parse(Buffer.from(parts[1], 'base64').toString());
      this.signature = Buffer.from(parts[2], 'base64');
      this.signed = parts[0] + '.' + parts[1];
    } catch (err) {
      this.content = {
        exp: 0
      };
    }
  }
}
function Token (token, clientId) {
  this.token = token;
  this.clientId = clientId;

  if (token) {
    try {
      const parts = token.split('.');
      this.header = JSON.parse(Buffer.from(parts[0], 'base64').toString());
      this.content = JSON.parse(Buffer.from(parts[1], 'base64').toString());
      this.signature = Buffer.from(parts[2], 'base64');
      this.signed = parts[0] + '.' + parts[1];
    } catch (err) {
      this.content = {
        exp: 0
      };
    }
  }
}
function Token ( token , clientId ) { this . token = token ; this . clientId = clientId ; if ( token ) { try { const parts = token . split ( '.' ) ; this . header = JSON . parse ( Buffer . from ( parts [ 0 ] , 'base64' ) . toString ( ) ) ; this . content = JSON . parse ( Buffer . from ( parts [ 1 ] , 'base64' ) . toString ( ) ) ; this . signature = Buffer . from ( parts [ 2 ] , 'base64' ) ; this . signed = parts [ 0 ] + '.' + parts [ 1 ] ; } catch ( err ) { this . content = { exp : 0 } ; } } }
Construct a token.

Based on a JSON Web Token string, construct a token object. Optionally
if a `clientId` is provided, the token may be tested for roles with
`hasRole()`.

@constructor

@param {String} token The JSON Web Token formatted token string.
@param {String} clientId Optional clientId if this is an `access_token`.
Construct a token .