How to convert POST form data to JSON object

Question

if there any default functions that can convert a post form data string into json object ?

Here is an example

sendNotification=true&type=extended&additionalNotes=&returnToMainPage=true

As you can this is the format of POST form data. I need to convert it into JSON object

{
    "sendNotification": "true",
    "type": "extended",
    "additionalNotes": "",
    "returnToMainPage": "true"
}

Also it should handle arrays like this

blog.blogposts[1].comments  1
blog.blogposts[1].likes 12

I wonder how can I do this using existing tools and libraries. I know that I can write my own converter, but I guess there should a default one.

Thanks

IMPORTANT

I don't have a form, I need just convert the form data string.

Answer 1

Try this

var params = getUrlVars('some=params&over=here');
console.log(params);

function getUrlVars(url) {
    var hash;
    var myJson = {};
    var hashes = url.slice(url.indexOf('?') + 1).split('&');
    for (var i = 0; i < hashes.length; i++) {
        hash = hashes[i].split('=');
        myJson[hash[0]] = hash[1];
    }
    return myJson;
}

I found it here Convert URL to json

Answer 2

Building on the answer from Prashanth Reddy, if you want json string output simply add JSON.stringify(myJson); on the return

var params = getUrlVars('sendNotification=true&type=extended&additionalNotes=&returnToMainPage=true');
console.log(params);
function getUrlVars(url) {
    var hash;
    var myJson = {};
    var hashes = url.slice(url.indexOf('?') + 1).split('&');
    for (var i = 0; i < hashes.length; i++) {
        hash = hashes[i].split('=');
        myJson[hash[0]] = hash[1];
    }
    return JSON.stringify(myJson);
}

Output: {"sendNotification":"true","type":"extended","additionalNotes":"","returnToMainPage":"true"}

Answer 3

I see it this way

getStringJson('sendNotification=true&type=extended&additionalNotes=&returnToMainPage=true');

function getStringJson(text) {
    var json = {}, text = text.split("&");
    for (let i in text){
        let box = text[i].split("=");
        json[box[0]] = box[1];
    }
    return JSON.stringify(json);
}

Output generated:

"{"sendNotification":"true","type":"extended","additionalNotes":"","returnToMainPage":"true"}"

Answer 4

Working Demo

 // Form Data String var dataString = "sendNotification=true&type=extended&additionalNotes=&returnToMainPage=true"; // Split the String using String.split() method. It will return the array. var params = dataString.split("&"); // Create the destination object. var obj = {}; // iterate the splitted String and assign the key and values into the obj. for (var i in params) { var keys = params[i].split("="); obj[keys[0]] = keys[1]; } console.log(obj); // Object {sendNotification: "true", type: "extended", additionalNotes: "", returnToMainPage: "true"}