node-json-db

A simple "database" that use JSON file for Node.JS.

Installation

Add node-json-db to your existing Node.js project.

npm install node-json-db --save

Inner Working

###Data The module store the data using JavaScript Object directly into a JSON file. You can easily traverse the data to reach directly the interesting property using the DataPath. The principle of DataPath is the same as XMLPath.

###Example

{
    test: {
        data1 : {
            array : ['test','array']
        },
        data2 : 5
    }
}

If you want to fet the value of array, the DataPath is /test/data1/array To reach the value of data2 : /test/data2 You can of course get also the full object test : /test Or even the root : /

Usage

See test for more usage details.

var JsonDB = require('node-json-db');
//The second argument is used to tell the DB to save after each push
//If you put false, you'll have to call the save() method.
var db = new JsonDB("myDataBase", true);

//Pushing the data into the database
//With the wanted DataPath
//By default the push will override the old value
db.push("/test1","super test");

//It also create automatically the hierarchy when pushing new data for a DataPath that doesn't exists
db.push("/test2/my/test/",5);

//You can also push directly objects
db.push("/test3", {test:"test", json: {test:["test"]}});

//If you don't want to override the data but to merge them
//The merge is recursive and work with Object and Array.
db.push("/test3", {new:"cool", json: {important : 5}}, false);
/*
This give you this results :
{
   "test":"test",
   "json":{
      "test":[
         "test"
      ],
      "important":5
   },
   "new":"cool"
}
*/

//Get the data from the root
var data = db.getData("/");

//From a particular DataPath
var data = db.getData("/test1");

//Deleting data
db.delete("/test1");

//Save the data (usefull if you disable the saveOnPush)
db.save();