added ip middleware

Author: botplex

app.js

@@ -1,9 +1,19 @@
 var http = require("http");
 var express = require("express");
+const requestIp = require('request-ip');
 
 var app = express();
 var port = process.env.PORT || 8080;
 
+//middleware handler 
+const ipMiddleware = function(req, res, next) {
+    const clientIp = requestIp.getClientIp(req); 
+    req.ip = clientIp;
+    next();
+};
+
+app.use(ipMiddleware);
+
 app.use(function(req, res)
         {
             res.json({"Ip address":req.ip, "UserAgent":req.get("user-agent"), "language":req.acceptsLanguages()});