How to get post parameters in Node.js

Question

I am not able to get the post parameters in my node js ,when I put console it says undefined but when I post parameters from postman it is working.Can anyone suggest help, please?

exports.login = function( req, res ) {
console.log(req.body)
  var query = 'select * from profile where email = ? and password = ?'; 
 connection.query(query,[req.body.email,req.body.password],function(error,result,rows,fields){
    if(!!error){console.log(error)
      console.log('fail');
    }else{
      console.log(result);
      res.send(result);
    }
  // }

  });}

My Express code,

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

var admin = require('../controller/user'); 
 router.post('/login',cors(), admin.login);

abdulbarik · Answer 1 · 2016-09-13T09:09:13.380

2

Always put body-parser before all route. Like this

  var app=express();
  app.use(bodyParser.json());
  app.use(bodyParser.urlencoded({ extended: true }));

Other wise always get undefined body value if you use it before any route since body not parsed yet.

edited Sep 13 '16 at 09:09

answered Sep 13 '16 at 08:23

abdulbarik

6,101
5
38
59

Thank you it worked but getting the data to server like this – MMR Sep 13 '16 at 09:11
{ '{"email":"s@gmail.com","password":"1"}': '' } – MMR Sep 13 '16 at 09:11
How are you passing data from client side? – abdulbarik Sep 13 '16 at 09:41
headers.append('Content-Type', 'application/x-www-form-urlencoded') this.http.post(this.header1+'login', JSON.stringify(form), { headers: headers }) – MMR Sep 13 '16 at 09:45
your JSON is not coming properly – abdulbarik Sep 13 '16 at 09:50
what might be the problem – MMR Sep 13 '16 at 09:51
application/json. – MMR Sep 13 '16 at 09:55
yes, that's why you were getting the proper value. Here are any specific reason to pass as application/x-www-form-urlencoded – abdulbarik Sep 13 '16 at 09:57
You should remove content type and if you are parsing JSON to string you should also remove that – abdulbarik Sep 13 '16 at 10:00
i am finding any data being sent to server when i removed that – MMR Sep 13 '16 at 10:03
headers.append('Content-Type', 'application/x-www-form-urlencoded') this.http.post(this.header1+'login', form, { headers: headers }) – MMR Sep 13 '16 at 10:15
Can you try with this type of header setRequestHeader("enctype", "multipart/form-data"); It should work – abdulbarik Sep 13 '16 at 10:44
http://stackoverflow.com/questions/35088479/how-to-submit-a-form-using-angular-2-http-post-function-using-javascript – abdulbarik Sep 13 '16 at 10:49

score 1 · Answer 2 · answered Sep 13 '16 at 07:42

1

You forgot to use bodyParser. First install it using command

npm install body-parser --save

Then add the following to your app

var bodyParser = require('body-parser');
app.use(bodyParser.json()); // support json encoded bodies
app.use(bodyParser.urlencoded({ extended: true })); // support encoded bodies

After that you can use req.body

answered Sep 13 '16 at 07:42

Rashad Ibrahimov

3,279
2
18
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As I understand the first code is separate file, let's call it `Admin module`, and `admin.login` in the second code example refers to that file. So you have to use `body-parser` in `Admin module` file – Rashad Ibrahimov Sep 13 '16 at 08:10

How to get post parameters in Node.js

2 Answers2