Make an object from a string in node js

Question

I am sending the string from AngularJS to NodeJS in following form.

"{↵obj:{↵one:string,↵two:integer↵}↵}"//request object from browser console

I want to convert this string in object and use its properties.for this the server side code is following:

var data=req.body.data.replace(/"/g,"");
var str=data.replace(/\n/g," ");
//res.json(str) // returning "{ obj:{ one:string, two:integer } }"
try {
var obj=JSON.parse(JSON.stringify(str)).replace(/"/g,"");
res.json(obj);//returning same "{ obj:{ one:string, two:integer } }"
} catch (error) {
console.log(error);
}

I want to get ['users'] by Object.keys[obj] or by any other method want to access the properties of this object.but failed to achieve this.

Many solutions like This couldn't be helpful.any suggestion here??

Why are you removing quotes and newlines? If it's valid JSON then all you need to do is call JSON.parse() on req.body.data. — mscdex
– mscdex, Commented Nov 23, 2016 at 7:32
it is not parsing req.body.data directly.by doing this JSON.parse(JSON.stringify(req.body.data)) the answer is "{\nobj:{\none:string,\ntwo:integer\n}\n}".....still properties are not accessible — N.A
– N.A, Commented Nov 23, 2016 at 7:39
@ThomasThiebaud error after json.parse shows this but how can i validate this json in case.???can u please explain? — N.A
– N.A, Commented Nov 23, 2016 at 7:42

Ani · Accepted Answer · 2016-11-23 07:38:09Z

2

All you need is JSON.parse to convert string to object.

Something like this:

var jsonString='{"obj":{"one":"string","two":"integer"}}';
console.log(JSON.parse(jsonString));

Output:

{ obj: { one: 'string', two: 'integer' } }

answered Nov 23, 2016 at 7:38

Ani

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11 Comments

N.A Over a year ago

just json.parse is creating error as unexpected token.

Ani Over a year ago

Show the console output.

N.A Over a year ago

this is req.body.data { obj:{ one:string, two:integer } } not like json object.and this is console output.SyntaxError: Unexpected token o in JSON at position 2 at Object.parse (native)

Ani Over a year ago

That's because it's not a proper JSON string. This is json object. A json string would be this : '{"obj":{"one":"string","two":"integer"}}';

N.A Over a year ago

okay so is this an object string?? can we convert it into simple object instead of json?

|

Maryadi Poipo · Accepted Answer · 2017-12-09 11:58:14Z

0

For example my raw data is like this :

var raw_data = 
    {
        "ok": true,
        "user": {
            "id": "U89MZ4PV2",
            "team_id": "T895HCY8H",
            "name": "hyosoka187",       
        }
    }

then just use JSON.parse(raw_data, true);. So

var real_data = JSON.parse(raw_data, true);
console.log(real_data.user.name);

Result :

hyosoka187

NOTE : Output of JSON.parse(raw_data, true) :

{
    ok: true,
    user: {
        id: 'U89MZ4PV2',
        team_id: 'T895HCY8H',
        name: 'hyosoka187',       
    }
}

answered Dec 9, 2017 at 11:58

Maryadi Poipo

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