nodejs-fs-json-wrapper

A simple nodejs wrapper for inserting and deleting objects into a json file. Uses fs library to read/write the json file.

Running the example.js -

1. Clone/Download zip of repository.

2. Extract content of the zip.

3. Open cmd to run the following code -

cd "folderpath where zip is extracted"
npm install

4. After the installation, run -

npm start

Usage -

1. Import the file in your project -

var jsonOperation = require('./json-read-write.js');

2. Insert object in the json using

 var object =
  {
  title: "Installing Packages",
  body: "Run npm install to install the packages. "
};

jsonOperation.insertJsonObject(object);

use the following to create a promise function to print json after inserting an object -

var object =
 {
 title: "Installing Packages",
 body: "Run npm install to install the packages. "
};

var insertAndPrintFunction = function(){
 var promise = new Promise(function(resolve, reject){
   jsonOperation.insertJsonObject(object);
   resolve();
 });
 return promise;
}

insertAndPrintFunction().then(function(){
 console.log("Printing the contents of JSON file: \n");
 jsonOperation.printJsonFile();
});

JSON File Syntax Example - (I have used the objectarray in the json-read-write.js)

 {
  "objectarray": [
    {
      "title": "Installing Packages",
      "body": "Run npm install to install the packages. "
    }
  ]
 }

Refer to the line in the js file - objectarray is the array name defined in the json file.

fileAsJson.objectarray.push(object); //objectarray is the array defined in your json.