发送POST请求并使用Node.js获取数据

Question

I've been struggling with sending a POST request and fetching data back using Node.js

I've been trialing like this

var querystring = require('querystring');
var http = require('http');

var postData = querystring.stringify({

});

var options = {
  hostname: 'www.google.com',
  port: 80,
  path: '/',
  method: 'POST',
  headers: {
    'Content-Type': 'application/x-www-form-urlencoded',
    'Content-Length': postData.length
  }
};

var req = http.request(options, function(res) {
  console.log('STATUS: ' + res.statusCode);
  console.log('HEADERS: ' + JSON.stringify(res.headers));
  res.setEncoding('utf8');
  res.on('data', function (chunk) {
    console.log('BODY: ' + chunk);
  });
  res.on('end', function() {
    console.log('No more data in response.')
  })
});

req.on('error', function(e) {
  console.log('problem with request: ' + e.message);
});

req.write(postData);
req.end();

But I'm stuck in postData and don't know what would do. Please help me. How can I fill a form in a web, then request POST method (in this case, click Search button on Google), and then fetch data responded?

Answer 1

Google search doesn't use POST method while searching, it uses GET method. You'll have to change method to GET, remove postData and embed data to be sent in url itself.

var options = {
    hostname: 'www.google.com',
    port: 80,
    path: '/#q'+search_key, //search_key is term to be searched
    method: 'GET'
};

Or you can use like this also

http.get("http://www.google.com/#q="+search_key, function(res) {
  console.log("Got response: " + res.statusCode);
}).on('error', function(e) {
  console.log("Got error: " + e.message);
});