Using javascript and node.js how to post the content to the text file through ajax

Question

Using javascript and node.js how to post the content to the text file through ajax

Using javascript and node.js how to post the content to the text file through ajax.

<html>
<body>
     <input type="button" value="Click Me" onclick="postContent()">
  <script>
    function postContent(){
        var req=new XMLHttpRequest();
        req.open('post','addContent.js',true);//in this sample.txt file i want to insert some content
        req.send();
      }

  </script>
 </body>
</html>

addContent.js

  var fs = require('fs');
  fs.writeFile("/tmp/sample.txt", "Hey there!", function(err) {
   if(err) {
      console.log(err);
   } else {
     console.log("The file was saved!");
   }
});

javascript
ajax
node.js

Answer 1

You can have a server-side script that writes the content to a text file and call that server-side script using Ajax.

req.open('POST', 'FilePoster', true);
req.send(dataToWrite);

Edited for new question:

req.open('post','addContent.js',true);

addContent.js should be an HTTP server running on a host and port.

If addContent.js is a node HTTP server, running on localhost and port 8080, the open call should be

req.open('POST', 'localhost:8080', true);