始终返回“ HttpError：访问资源权限不足”

Question

我正在尝试使用node acl来实现用户，管理员权限 不幸的是总是返回错误HttpError: Insufficient permissions to access resource

1。当用户登录时添加用户角色

acl.addUserRoles(admin._id.toString(), admin.role)

admin.role是admin

2.checkpermission.js 使用Redis和页面包含在admin.js

中

 var acl     = require('acl');
 var redis   = require("redis");
 var client  = require('redis').createClient(6379, '127.0.0.1', {no_ready_check: true});

 acl = new acl(new acl.redisBackend(client, "acl_"));

 // Using redis backend

     acl.allow([
            {
                roles: ['admin'],
                allows: [
                          {
                           resources: 'admin',
                           permissions: ['get', 'post', 'put', 'delete'],
                          },    
                ]
            }

        ]);


  module.exports = acl;

3. admin.js 页调用checkpermission.js并从会话中获取登录的用户ID

var acl = require('config/checkpermission');

function get_user_id( request, response ) {

    return request.user && request.user.id.toString() || false;
}

......................
......................


router.get('/',  [acl.middleware(1, get_user_id)],(req, res, next) =>{

                Admin.findById(req.user.id,  function (err, data) {
                if (err) return err;

                return res.json(data);

            }); 
});