How to make «express + request» and display the data?

Question

How to make «express + request» and display the data?

How to make the body site to display?

I understand that I may not pass a function variable res, but I do not understand how it can pass there, please show once, so that later I knew how to do it.

var request = require('request');

var express = require('express');
var app = express();

app.get('/', function(req, res){
    request({
        url: 'http://google.com/'
    }, gotData);
});

app.listen(3000);

function gotData(err, res, body) {
    if(!err && res.statusCode == 200) {
        console.log(body); // fine
        res.send(body); // error
    }
    else {
        console.log(err);
    }
}

node.js
express
request

Answer 1

The res you are using is not the express res. The res you want is out of scope.

var request = require('request');

var express = require('express');
var app = express();

app.get('/', function(req, res){    // express res
  request({
    url: 'http://google.com/'
  }, function(err, res2, body) {    // request res
    if(!err && res.statusCode == 200) {
      return res.send(body);
    } else {
      return res.send('Could not load google.com');
    }   
  }); 
});

app.listen(3000);