R shiny: how to write variable to cookies

Question

It easy to write a fixed string to cookies using such as Cookies.set(\'cookie_2\', \'value\', { expires: 7 }) (see tutorial here).

But how can I save user to cookie_2? Say I have

user = "Klay"
runjs('Cookies.set(\'cookie_2\', user, { expires: 7 });')

Is it possible to achieve this in one-liner? Thanks.

score 2 · Answer 1 · answered Mar 11 '20 at 08:47

2

Function is runjs('String') so we made the string with our user variable, Like 'String'+variable+'String'

user = "Klay" runjs('Cookies.set(\"cookie_2\",' + user +', { expires: 7 });')

answered Mar 11 '20 at 08:47

Hafzal BZ

Thanks for the answer, but it did not work. Would you please advice more? Thanks. – Samoth Mar 11 '20 at 08:59
`Error in "Cookies.set(\"cookie_2\"," + user : non-numeric argument to binary operator` is the error message. – Samoth Mar 11 '20 at 12:28

Samoth · Answer 2 · 2020-03-11T14:34:06.270

0

I finally come up with the answer as follows:

user = "Klay"
string = sprintf("Cookies.set(\'username\', '%s', { expires: 7 });", user)
runjs(string)

edited Mar 11 '20 at 14:34

answered Mar 11 '20 at 14:27

Samoth

you don't need to escape `\'` you use double quotes. – jcubic Mar 12 '20 at 14:06

2 Answers2