@jenselg/obj.js NPM

FEATURES

use Javascript objects and object notation to read / write from the filesystem / datastore
symmetric encryption of data using multiple keys
read / write permissions for instances
pure Node.js, no third-party libraries
tested on Linux and MacOS

INSTALLATION

npm install --save @jenselg/obj.js

HOW TO USE

Create new instance:

require in your project:

const Obj = require('@jenselg/obj.js')
let obj = new Obj(options)

options argument is optional, see below

Instance options:

options should be an object:

{ name: 'obj-store', path: '/some/path' }

name of the obj instance / folder, defaults to 'obj-store':
```
options.name = 'string'
```

base path where to store obj instance / folder, defaults to user home directory:
```
options.path = 'string'
```

encoding used for data, defaults to 'utf8':
```
options.encoding = 'string'
```

set read/write permissions for obj instance:
```
options.permissions = 'string'
```

permissions options:
- read only: 'r'
- write only: 'w'
- read and write: 'rw'
- defaults to 'rw'

set encryption for obj instance:

options.encryption = {}
options.encryption.algorithm = 'string'
options.encryption.key = 'string'
options.encryption.keyfile = '/path/to/keyfile'

encryption options:
- available algorithms: 'aes256', 'aria256', 'camellia256'
- key(s) formats:
  - 'key'
    - string
    - single-level encryption
  - 'a:sequence:of:different:keys'
    - string
    - multi-level encryption
    - recursive
    - colon-separated values
  - keyfile
    - optional
    - if provided, key property is optional
- if both key and keyfile are present, both will be used
- once a data store has been encrypted, you can't start an unencrypted instance on it
- provided key(s) and/or keyfile must match the key(s) and/or keyfile of an encrypted instance
- see code for implementation

Properties:

object / directory absolute paths (filesystem) are accessed via the _path property, which returns a string of the absolute path

const Obj = require('@jenselg/obj.js')
let obj = new Obj()

console.log(obj.one.two.three._path)
// '/home/username/obj-store/one/two/three'

object / directory relative paths (Obj.js instance) are accessed via the _name property, which returns a string of object name(s) / directory path(s) delimited by colons
```
const Obj = require('@jenselg/obj.js')
let obj = new Obj()

console.log(obj.one.two.three._name)
// 'obj-store:one:two:three'
```

object / directory contents are accessed via the _keys property, which returns an array

const Obj = require('@jenselg/obj.js')
let obj = new Obj()

console.log(obj.one.two.three._keys)
// []

Set data:

just like a regular object
data can be created in recursively non-existent paths / directories / objects

Get data:

just like a regular object
non-existent paths / directories / objects returns an object

Delete / update data:

set the obj.key to undefined, null, or set to other data

obj.key = undefined
// folders / files deleted from filesystem, and returns undefined

obj.key = 'data'
// replaces value of obj.key with 'data'

LICENSE

MIT License

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.