Adding data to a Json file using javascript

Question

So I have an existing JSON file where the login data is stored. How can I add new users to this JSON file with JavaScript or JQuery?

This is my JSON-File:

{
 "users": [
   {
    "username": "Tim",
    "password": "test1"
   },
   {
    "username": "Tom",
    "password": "test2"
   }
 ]
}

Also usually password is hashed and not stored in raw form. If you are using Nodejs. You can push new data to this array and use fs package to update your JSON file — junwen-k
– junwen-k, Commented Dec 13, 2019 at 0:04
For Jquery, You can check this answer out - stackoverflow.com/a/17976034/6128530 — Nazir
– Nazir, Commented Dec 13, 2019 at 5:49

Mohammad · Accepted Answer · 2019-12-13 00:44:30Z

1

At the first put your data from login in data

var data  = {
 "users": [
   {
    "username": "Tim",
    "password": "test1"
   },
   {
    "username": "Tom",
    "password": "test2"
   }
 ]
}

And after that you shoud parse your json and put in jsonData and push your new user in it.

 var jsonData = JSON.parse(data);  //parse the JSON
 jsonData.users .push({        //add new user
 username :"Mohammad",
 password  :"test3",
 });

At the end stringfy your json data to a string

data= JSON.stringify(jsonData);

answered Dec 13, 2019 at 0:44

Mohammad

1271 silver badge13 bronze badges

Sign up to request clarification or add additional context in comments.

1 Answer 1