nodejs fs read json code example

Example 1: read json file nodejs

const fs = require('fs');
const path = require('path');

let rawdata = fs.readFileSync(path.resolve(__dirname, 'student.json'));
let student = JSON.parse(rawdata);
console.log(student);

Example 2: write json file nodejs

const fs = require('fs');
const path = require('path');

let student = { 
    name: 'Mike',
    age: 23, 
    gender: 'Male',
    department: 'English',
    car: 'Honda' 
};
 
fs.writeFileSync(path.resolve(__dirname, 'student.json'), JSON.stringify(student));

Example 3: how to use json file in nodejs

D:\NodeJs>node readsync.js
 *START*
Output Content:
 /* content here */
*EXIT*
// Define JSON File
 var fs = require("fs");
 console.log("\n *STARTING* \n");
// Get content from file
 var contents = fs.readFileSync("jsoncontent.json");
// Define to JSON type
 var jsonContent = JSON.parse(contents);
// Get Value from JSON
 console.log("User Name:", jsonContent.username);
 console.log("Email:", jsonContent.email);
 console.log("Password:", jsonContent.password);
log("\n *EXIT* \n");