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etcd-adapter

Build Status Coverage Status Godoc

ETCD adapter is the policy storage adapter for Casbin. With this library, Casbin can load policy from ETCD and save policy to it. ETCD adapter support the Auto-Save feature for Casbin policy. This means it can support adding a single policy rule to the storage, or removing a single policy rule from the storage.

Installation

go get github.com/sebastianliu/etcd-adapter

Sample Example

package main

import (
	"github.com/sebastianliu/etcd-adapter"
	"github.com/casbin/casbin"
)

func main() {
	// Initialize a casbin etcd adapter and use it in a Casbin enforcer:
	// The adapter will use the ETCD and a named path with the key you give.
	// If not provided, the adapter will try to use the default value casbin_policy.
	// If you have namespace to distinguish keys in your etcd, you can use your_namespace/casbin_root_path
	a := etcdadapter.NewAdapter([]string{"http://127.0.0.1:2379"}, "casbin_policy_test") // Your etcd endpoints and the path key.

	e := casbin.NewEnforcer("rbac_model.conf", a)

	// Load the policy from ETCD.
	e.LoadPolicy()

	// Check the permission.
	e.Enforce("alice", "data1", "read")

	// Modify the policy.
	// e.AddPolicy(...)
	// e.RemovePolicy(...)

	// Save the policy back to DB.
	e.SavePolicy()
}