CODEWITHSUNDEEP
javascriptnode.jsjson
Batchen Regev
Batchen Regev

Reputation: 1013

JavaScript get object from json file

Im new to js and i dont understand how can i take an object from json file,

for example this file : local.json

{
"server": "myname",
"url": 10.0.0.1
}

I need to get the url to insert in in my js code like this, replace the 127.0.0.1 with what i have in json file at url:

import axios from 'axios';
import jsonFile from '../local.json';
const http = require("http");
const host = '127.0.0.1'; #should be 10.0.0.1 from json file

Upvotes: 0

Views: 120

Answers (4)

Jean Villarreal
Jean Villarreal

Reputation: 65

I assume you need to get configurations to instantiate your server.

You may like to follow below steps to instantiate settings:

Install the dependency config

It allows you to define a json file of settings.

I define the structure

you create a directory inside your project called config inside you create a json file default.json

│
config
│--- default.json
│

inside the file you write your values

{
   "server": "myname",
   "url": "10.0.0.1"
}

and to access you do the following

file = index.js

const config = require ("config");

console.log (config.get ("url"));

Upvotes: 0

Arjun Singh
Arjun Singh

Reputation: 312

In javascript, Specific Object value can be accessed by following three ways:

  1. DOT (.) operator

    const obj = {
   "server": "myname",
   "url": "10.0.0.1"
};
const url = obj.url;
console.log(url); // 10.0.0.1

  2. Square bracket ([])

    const obj = {
   "server": "myname",
   "url": "10.0.0.1"
};
const url = obj["url"];
console.log(url); // 10.0.0.1

  3. De-structuring (>=ES6)

    const obj = {
   "server": "myname",
   "url": "10.0.0.1"
};
const { url } = obj;
console.log(url); // 10.0.0.1

Upvotes: 1

Aleksandr Kuharenko
Aleksandr Kuharenko

Reputation: 491

Your json file should be: 

{
  "server": "myname",
  "url": "10.0.0.1"
}

(use double quotes)

and just use dot: 

const host = jsonFile.url

Upvotes: 2

Abel Otugeme
Abel Otugeme

Reputation: 1

You need to use the "dot" syntax.

const host = jsonFile.url

Upvotes: 0

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