Node JS save user input into a text file

Question

I have a local server running with Node JS. Then I have several select tags and I want after the user chooses, to save their inout on a text file? Could somebody help me out how to do this? (furthermore, when I press submit I get an undefined on the terminal)

The node js code:

var express = require('express');
var bodyParser = require('body-parser');
var app = express();
app.use(bodyParser.json());
var port = process.env.PORT || 8000;

app.use(express.static(__dirname + '/server'));
app.use(express.static(__dirname + '/public'));

app.use('/images', express.static(__dirname +'/images'));

app.get('/', function(req, res){
    res.sendfile('main.html');
});

app.listen(port, function(){
    console.log('server is running on ' + port);
});

app.post('/submit', function(req, res){
  console.log(req.body.rank);
});

The HTML:

<form method="POST" action="/submit"  > <!--action-page.php-->

        <select name="option" size="1" style="width:80px;" required id="rankx">
          <option value="" selected disabled hidden>Option</option>
          <option value="1">1</option>
          <option value="2">2</option>
        </select>

      <br />
        <select name="option" size="1" style="width:80px;" required>
          <option value="" selected disabled hidden>Rank</option>
          <option value="1">1</option>
          <option value="2">2</option>
        </select>

  <input type="submit" value="Submit" name="submit" id="submit"/>

Quentin · Accepted Answer · 2018-02-12 10:04:23Z

1

Problem 1

app.use(bodyParser.json());

Your form is submitting data in application/x-www-form-urlencoded format, not JSON.

You need a body parser that can handle application/x-www-form-urlencoded.

See bodyParser.urlencoded([options])

app.use(bodyParser.urlencoded());

Problem 2

You have inputs named option and submit but you are looking for one named rank.

You have to match your input names to what you are looking for.

answered Feb 12, 2018 at 10:04

Quentin

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Comments

Vipin PS · Accepted Answer · 2018-02-12 14:44:04Z

0

Use this code inside the node js file

const bodyParser = require('body-parser');
app.use(bodyParser.json()); // for parsing application/json
app.use(bodyParser.urlencoded({ extended: true })); // for parsing application/x-www-form-urlencoded\

answered Feb 12, 2018 at 14:44

Vipin PS

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