barong_jwt.rb

require "pry-byebug"
require "openssl"
require "jwt"
require "securerandom"

priv_key = File.open("path/to/private/key") do |f|
  OpenSSL::PKey.read(f.read)
end

payload = {
  algorithm: "RS256",
  :iss=>"barong",
  :sub=>"session",
  :aud=>["yellow-logic"],
  :email=>"[email protected]",
  :uid=>"U123456789",
  :role=>"admin",
  :state=>"active",
  :level=>"3",
  :iat=>Time.now.to_i,
  :exp=>(Time.now + 60).to_i,
  :jti=>SecureRandom.hex(12)
  }
jwt = JWT.encode(payload, priv_key, payload[:algorithm])
print jwt