Using Javascript to create/store cookies

Question

I'm trying to create a simple cookie using javascript . But for some reason , json.stringify doesnt seem to work

i have the below object

var text = JSON.stringify({username: req.user.username})

which i send back as the cookie

res.cookie('user',text)

however , the client side stores the cookie in this format

user=%7B%22username%22%3A%22Kannaj%22%7D

how do i escape the '%' characters and store it as a stringified JS object?

The % characters are escape sequences. The storage is fine. You just need to unescape it when you want to read the data. — Quentin
– Quentin, Commented Jun 21, 2016 at 11:57

Medet Tleukabiluly · Accepted Answer · 2016-06-21 12:01:39Z

1

decodeURIComponent

decodeURIComponent('%7B%22username%22%3A%22Kannaj%22%7D')
//returns
'{"username":"Kannaj"}'

As noted by Quentin:

The storage is fine. You just need to unescape it when you want to read the data

edited Jun 21, 2016 at 12:01

answered Jun 21, 2016 at 11:57

Medet Tleukabiluly

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3 Comments

Jayaram Over a year ago

Could i do this on the server side?

Medet Tleukabiluly Over a year ago

Nope, it's a protocol thing, you can unescape on client

Medet Tleukabiluly Over a year ago

@VatsalPathak Replaces each escape sequence in the encoded URI component with the character that it represents. So yeah, it only returns strings, as only strings has replace method

Geeky Ninja · Accepted Answer · 2016-06-21 12:08:04Z

0

Use decodeURLComponent, it accepts an encoded component of a Uniform Resource Identifier.

decodeURIComponent("JavaScript_%D1%88%D0%B5%D0%BB%D0%BB%D1%8B");
// "JavaScript_шеллы"

answered Jun 21, 2016 at 12:08

Geeky Ninja

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