jsonwebtoken

$ npm install jsonwebtoken

jwt.sign({  exp: Math.floor(Date.now() / 1000) + (60 * 60),  data: 'foobar'}, 'secret');

$ npm install jwt-simple

RSASHA256(
  base64UrlEncode(header) + "." +
  base64UrlEncode(payload),
  ,
  
)

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

JSON Web Token is an Internet standard for creating data with optional
signature and/or optional encryption whose payload holds JSON that asserts
some number of claims.

The tokens are signed either using a private secret or a public/private key.