Node的 Flat JSON 文件數據庫：lowdb

Node的 Flat JSON 文件數據庫

• 無服務器
• 快捷
• 事件觸發
• 來自 Lo-Dash 的 50+多個方法

LowDB構建在 Lo-Dash, 這使得它非常不同、獨特，相比其他往往是基于MongoDBAPI的無服務器數據庫。

LowDB powers JSON Server and JSONPlaceholder.

Usage

var low = require('lowdb')  low('songs').insert({title: 'low!'}) 

Database is automatically created and saved to db.json in a readable format.

{
  "songs": [
    {
      "title": "low!",
      "id": "e31aa48c-a9d8-4f79-9fce-ded4c16c3c4c"
    }
  ]
}

To query data, you can use Lo-Dash methods.

var songs = low('songs').where({ title: 'low!' }).value() 

Or LowDB equivalent short syntax.

var songs = low('songs', { title: 'low!' }) 

Changes can also be monitored.

low.on('add', function(name, object) {
  console.log(object + 'added to' + name)
})

Benchmark

get    x 1000    0.837708 ms
update x 1000    4.433322 ms
insert x 1000    11.78481 ms
remove x 1000    24.60179 ms

項目主頁：http://www.baiduhome.net/lib/view/home/1408799295975