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.
go get github.com/sebastianliu/etcd-adapterpackage 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()
}