Node “req is not defined”

Question

When I try to start following script:

var http = require(\"http\");

http.createServer(function(request, response) {
  response.writeHead(200, {\"Content-Type\":         


        

Answer 1

The variable req is not defined there. You have to move it inside of a request handler. Try this:

var http = require("http");

http.createServer(function(request, response) {
  var ip = request.headers['x-forwarded-for'] || request.connection.remoteAddress;

  console.log(ip)
  response.writeHead(200, {"Content-Type": "text/plain"});
  response.write("Hello World");
  response.end();
}).listen(8000);