empower-permission

Given a permission set and a request return a permission token.

it will look in the PermissionMap for for a url that matches the given URL. If found, then it will return the token string associated with that path. Otherwise, it will return the GeneralAccessToken or '*'.

Paths will be parsed using the pathToRegexp module. g

PermissionToken

Example Token Strings:

'token:entity:create'
'token:entity:update'
'token:entity:sub-entity:read'

PermissionMap

This is a map of path strings to PermissionTokens

Example Map:

{
  "/url/token/entity/:entityId": "url:token:entity",
  "/url/token/:tokenId": "url:token",
  "/url/token": "url:token:list",
  "/url/token/:tokenId/action": "url:token:action"
}

Usage

Building the Map from JSON

 
var PermissionMap = require('empower-permission');
var map = PermissionMap.fromJson({
  "/url/token/entity/:entityId": "url:token:entity",
  "/url/token/:tokenId": "url:token",
  "/url/token": "url:token:list",
  "/url/token/:tokenId/action": "url:token:action"
}}
 
var token = map.getToken("/url/token/entity/1234");
 
console.log(token); // will output "url:token:entity"
 

Building the Map Programmatically

 
var PermissionMap = require('empower-permission');
var map = PermissionMap();
 
map
  .addToken("/url/token/entity/:entityId", "url:token:entity")
  .addToken("/url/token/:tokenId", "url:token")
  .addToken("/url/token", "url:token:list")
  .addToken("/url/token/:tokenId/action", "url:token:action")
 
var token = map.getToken("/url/token");
 
console.log(token); // will output "url:token:list"