How to add http_referer to a cookie? - nginx

Question

I was trying something like this:
map $http_referer $setCookie {
default "referrer={$http_referer};Domain=.verbalink.com";
~*test1\.com "referrer=bl;Domain=.verbalink.com;Max-Age=31536000";
}
server{
add_header Set-Cookie $setCookie;
}
But when the cookie is created it has ${http_referer} as the value not the actual http referer. I also tried {$http_referer} and $http_referer but none worked. How can I get the referer into my Cookie?

Answer 1

map $http_referer $setCookie {
default $http_referer;
~*test1\.com "bl;Max-Age=31536000";
}
server{
add_header Set-Cookie "referrer=$setCookie;Domain=.verbalink.com";
}
The resulting value can be a string or another variable. © http://nginx.org/r/map
vs.
value can contain variables © http://nginx.org/r/add_header

Answer 2

If you have only two entries i would map them into some keywords and then in server entry you can If them :) and it should work. So it would look like:
map $http_referer $setCookie {
default "def";
~*test1\.com "test";
}
server{
if ($setCookie == "def"){
add_header Set-Cookie "referrer=$http_referer;Domain=.verbalink.com";
}
if ($setCookie == "test"){
add_header Set-Cookie "referrer=bl;Domain=.verbalink.com;Max-Age=31536000";
}
}