How to create a file using user input in nodejs? - node.js

Question

I have a text area, where the user type in their text. Once they click save the content in the text area is send to the server side. In the server side I want to use the content to create a file. I have a variable called "usercode" which holds the content of the text area. I create a file,
fs.wirteFile(name + "java", usercode, function(){})
Name the file name, given by user. This does create a file, however the only thing in the file is "[object Object]".
here is my client side I am using jade:
extends layout
block content
div(id="ineditortxt")
h1(name="headings") #{title}
a(href='/signout', class='text-center new-account') Sign Out
div(id="editor")
|public class #{title}{
| public static void main(String[] args) {
|
| }
|}
script(src="src/ace.js", type="text/javascript")
script(type="text/javascript").
//var myRequest = new XMLHttpRequest();
var editor=ace.edit("editor");
editor.setTheme("ace/theme/monokai");
editor.getSession().setMode("ace/mode/java");
$(document).ready(function(){
$("#save").click(function(event){
var content = editor.getValue();
$.ajax({
url:'/getcode',
type:'POST',
data: content,
jsonpCallback: 'callback'
});
event.preventDefault();
return false;
});
});
form(name="Save", id = "save")
input(type="submit", value="Save")
div(id="result")
|
Here is the server side i didn't include all the code, just the one related to this question:
var express = require('express');
var router = express();
var passport = require('passport');
var LocalStrategy = require('passport-local').Strategy;
var param = require('express-params');
var Parse = require('parse').Parse;
var http = require('http');
var fs = require('fs');
router.post('/editor', function(req, res){
name = req.body.newname;
res.render('Editor', {title: "" + name});
});
router.post('/getcode', function(req, res){
var usercode = req.body;
fs.writeFile(name + ".java", usercode, function(err){
if(err){
console.log(err);
} else{
console.log("The file is saved!");
}
})
res.send({code: "" + usercode});
console.log(usercode);
});
return router;
}

Answer 1

You are actually writing the req.body object to the file which is a JSON object to access the post data in your request.
You need to access the post data by form field name inside that object so if you have a form field named "myField", it's data will be available in req.body.myField
If you want to just write the whole object to the file, you need to first stringify the JSON object using JSON.stringify(req.body)
JSON.stringify is going to escape the string which you can fix by unescaping it using unescape(string)

Answer 2

On client side the code should be:
$(document).ready(function(){
$("#save").click(function(event){
var content = editor.getValue();
console.log("This is content: " + content);
$.ajax({
url:'/getcode',
type:'POST',
data: {'code': content},
processData: 'false',
});
event.preventDefault();
return false;
});
});
on the server side the code should be:
router.post('/getcode', function(req, res){
var usercode = req.body.code;
newname = name+".java";