EasyRecon/Hunt3r

class JsonWebToken
  require 'jwt'
  SECRET_KEY = "YOUR_JWT_SUPER_SECRET"
  JWT_EXPIRY = 1.day

  def self.encode(payload, exp = JWT_EXPIRY.from_now)
    payload[:exp] = exp.to_i
    JWT.encode(payload, SECRET_KEY, 'HS512')
  end

  def self.decode(token)
    decoded = JWT.decode(token, SECRET_KEY, true, {algorithm: 'HS512'})[0]

    res = HashWithIndifferentAccess.new decoded
    if Time.at(res[:exp]) > Time.now
      res
    else
      nil
    end
  rescue
    return nil
  end
end