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github.com/casbin/mongodb-adapter/v2

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github.com/casbin/mongodb-adapter/v2

  • v2.1.0
  • Source
  • Go
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MongoDB Adapter Build Status Coverage Status Godoc

MongoDB Adapter is the Mongo DB adapter for Casbin. With this library, Casbin can load policy from MongoDB or save policy to it.

Installation

go get -u github.com/casbin/mongodb-adapter/v2

Simple Example

package main

import (
	"github.com/casbin/casbin/v2"
	"github.com/casbin/mongodb-adapter/v2"
)

func main() {
	// Initialize a MongoDB adapter and use it in a Casbin enforcer:
	// The adapter will use the database named "casbin".
	// If it doesn't exist, the adapter will create it automatically.
	a := mongodbadapter.NewAdapter("127.0.0.1:27017") // Your MongoDB URL. 
	
	// Or you can use an existing DB "abc" like this:
	// The adapter will use the table named "casbin_rule".
	// If it doesn't exist, the adapter will create it automatically.
	// a := mongodbadapter.NewAdapter("127.0.0.1:27017/abc")

	e, err := casbin.NewEnforcer("examples/rbac_model.conf", a)
	if err != nil {
		panic(err)
	}

	// Load the policy from DB.
	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()
}

Filtered Policies

import "github.com/globalsign/mgo/bson"

// This adapter also implements the FilteredAdapter interface. This allows for
// efficent, scalable enforcement of very large policies:
filter := &bson.M{"v0": "alice"}
e.LoadFilteredPolicy(filter)

// The loaded policy is now a subset of the policy in storage, containing only
// the policy lines that match the provided filter. This filter should be a
// valid MongoDB selector using BSON. A filtered policy cannot be saved.

Getting Help

  • Casbin

License

This project is under Apache 2.0 License. See the LICENSE file for the full license text.

FAQs

Package last updated on 21 Mar 2020

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