override x-forwarded-for for openresty

gistfile1.txt

# NGINX 
location / {

        set $forwarded_for $proxy_add_x_forwarded_for;

        if ($http_x_verify_ip) {
            set $forwarded_for $http_x_verify_ip;
        }

        proxy_set_header X-Forwarded-For $forwarded_for;

        proxy_set_header Host $http_host;
        proxy_redirect off;
        proxy_pass http://127.0.0.1:8000;
}

#NODE JS TEST
var http = require('http');

var srv = http.createServer(function(req, res) {
    res.writeHead(200, {'Content-Type': 'text/plain'});

    var clientip = req.headers['x-forwarded-for'] || 'na';

    res.end("x-forwarded-for: " + clientip + "\n")

});

srv.listen(8000, "127.0.0.1", function() {
    console.log("listening");
});