Skip to content
Related Articles

Related Articles

Improve Article
Save Article
Like Article

How to send data from client side to Node.js server using Ajax without page reloading ?

  • Difficulty Level : Easy
  • Last Updated : 06 Oct, 2021

In this article, we are learning about how can we send data to a node server using Ajax without reloading the page from the client-side.

Approach: We are creating a button in HTML document on the client-side when the button is pressed a request is made on our node server and the object is received at our server without reloading the page. This can be done by Ajax request, we are sending data to our node server, and it also gives back data in response to our Ajax request. 

Step 1: Initialize the node modules and create the package.json file using the following command.

npm init

Step 2: Install express module locally into your system by using the following command.

npm i express 

Step 3: Create script.js, index.html file in js folder as shown below.



Project structure: It will look like the following.

File structure 

Step 4: Write down the following code in the given files.

index.html




<!DOCTYPE html>
<html lang="en">
  
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content=
        "width=device-width, initial-scale=1.0">
    <style>
        .container {
            width: 500px;
            margin: auto;
            text-align: center;
        }
    </style>
</head>
  
<body>
    <div class="container">
        <h1>
            Sending data to a node server using 
            Ajax Request without Reloading Page
        </h1>
          
        <button id="submit">submit</button>
    </div>
  
        integrity=
        "sha256-/xUj+3OJU5yExlq6GSYGSHk7tPXikynS7ogEvDej/m4=" 
        crossorigin="anonymous">
    </script>
    <script src="js/script.js"></script>
</body>
  
</html>

script.js




$(document).ready(function () {
   $("#submit").click(function () {
      $.post("/request",
         {
            name: "viSion",
            designation: "Professional gamer"
         },
         function (data, status) {
            console.log(data);
         });
   });
});

app.js




const express = require("express")
const path = require("path");
  
const app = express();
const port = process.env.PORT || 3000;
  
// Setting path for public directory 
const static_path = path.join(__dirname, "public");
app.use(express.static(static_path));
app.use(express.urlencoded({ extended: true }));
  
// Handling request 
app.post("/request", (req, res) => {
   res.json([{
      name_recieved: req.body.name,
      designation_recieved: req.body.designation
   }])
})
  
// Server Setup
app.listen(port, () => {
   console.log(`server is running at ${port}`);
});

Step 5: Run the app.js file using the following command:

node app.js

Starting node server 

Output:

Browser output 




My Personal Notes arrow_drop_up
Recommended Articles
Page :

Start Your Coding Journey Now!