basic code for using Ladon; taken + merged from readme: https://github.com/ory/ladon

ladon.go

package main

import (
	"log"

	"github.com/ory/ladon"
	manager "github.com/ory/ladon/manager/memory"
)

func main() {
	warden := &ladon.Ladon{
		Manager: manager.NewMemoryManager(),
	}

	var pol = &ladon.DefaultPolicy{}

	_ = warden.Manager.Create(pol)

	err := warden.IsAllowed(&ladon.Request{
		Subject:  "peter",
		Action:   "delete",
		Resource: "myrn:some.domain.com:resource:123",
		Context: ladon.Context{
			"ip": "127.0.0.1",
		},
	})
	if err != nil {
		log.Fatal("Access denied")
	}

}