proxy cookie

gistfile1.nginxconf

location /setcookie {
    content_by_lua '
        ngx.header.set_cookie = { "login=test%2Ftest", "cookie2" }
        ngx.say("OK")
    ';
}

location /getcookie {
    content_by_lua '
        local resty_http = require "resty.http"
        local httpc = resty_http.new()
        local ok, err = httpc:connect("127.0.0.1", 80)

        local res, err = httpc:request{
            method = "POST",
            headers = {
                Host = "dev.local",
            },
            path = "/setcookie",
        }

        local body = res:read_body()
        for k,v in pairs(res.headers) do
            ngx.say(k, ": ", v)
        end
        ngx.say(body)
        httpc:close()
    ';
}

output

$> curl -v -H "Host: dev.local" http://127.0.0.1/getcookie

Transfer-Encoding: chunked
Connection: keep-alive
Date: Wed, 17 Sep 2014 09:09:14 GMT
Content-Type: text/plain
set-cookie: login=test%2Ftest, cookie2
Server: openresty/1.5.8.1
OK