chore(release): 5.2.2 [skip ci] ## [5.2.2](https://github.com/casbin/node-casbin/compare/v5.2.1...v5.2.2) (2020-11-29) ### Bug Fixes * **builtinoperators:** fix function keyMatch3 ([1245aa0](https://github.com/casbin/node-casbin/commit/1245aa072b47135b49cb70abeed0796908a8feb7)), closes [#214](https://github.com/casbin/node-casbin/issues/214)
News: still worry about how to write the correct node-casbin policy? Casbin online editor is coming to help!
node-casbin is a powerful and efficient open-source access control library for Node.JS projects. It provides support for enforcing authorization based on various access control models.
 |  |  |  |
|---|---|---|---|
| Casbin | jCasbin | node-Casbin | PHP-Casbin |
| production-ready | production-ready | production-ready | production-ready |
 |  |  |  |
|---|---|---|---|
| PyCasbin | Casbin.NET | Casbin-CPP | Casbin-RS |
| production-ready | production-ready | beta-test | production-ready |
https://casbin.org/docs/en/overview
# NPM npm install casbin --save # Yarn yarn add casbin
New a node-casbin enforcer with a model file and a policy file, see Model section for details:
import { newEnforcer } from 'casbin'; const enforcer = await newEnforcer('basic_model.conf', 'basic_policy.csv');
Note: you can also initialize an enforcer with policy in DB instead of file, see Persistence section for details.
Add an enforcement hook into your code right before the access happens:
const sub = 'alice'; // the user that wants to access a resource. const obj = 'data1'; // the resource that is going to be accessed. const act = 'read'; // the operation that the user performs on the resource. const res = await enforcer.enforce(sub, obj, act); if (res) { // permit alice to read data1 } else { // deny the request, show an error }
Besides the static policy file, node-casbin also provides API for permission management at run-time. For example, You can get all the roles assigned to a user as below:
const roles = await enforcer.getRolesForUser('alice');
See Policy management APIs for more usage.
Casbin provides two sets of APIs to manage permissions:
https://casbin.org/docs/en/supported-models
https://casbin.org/docs/en/adapters
https://casbin.org/docs/en/watchers
https://casbin.org/docs/en/role-managers
This project exists thanks to all the people who contribute.
Thank you to all our backers! 🙏 [Become a backer]
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This project is licensed under the Apache 2.0 license.
If you have any issues or feature requests, please contact us. PR is welcomed.
