How to get server response from an AJAX request using jQuery ?

Last Updated : 26 Apr, 2025

In this article, we will see how we can use jQuery to get the server response to an AJAX request. The jQuery ajax() method implements the basic Ajax functionality in jQuery. It communicates with the server via asynchronous HTTP requests.

Syntax:

$.ajax(url);
$.ajax(url,[options]);

Parameters:

url: A URL string to which you wish to post or get the data.
options: Options for configuring an Ajax request. The JSON format is used to specify an options parameter. This is an optional parameter.

The table below lists all of the configuration options for Ajax requests.

Options	Description
url	The URL to which the request is sent is a string.
data	Data is to be transmitted to the server. It can be a JSON object, a string, or an array.
type	A kind of HTTP request, such as POST, PUT, or GET. The default is GET.
success	A callback function is called when an Ajax request is successful.
timeout	A timeout value in milliseconds for the request.
username	In response to an HTTP access authentication request, utilize this username using XMLHttpRequest.
xhr	A function is s called when the XMLHttpRequest object is created.
xhrFields	To set on the native XMLHttpRequest object, an object of field_Name-field_Value pairs.
statusCode	A JSON object containing numeric HTTP codes and methods to be invoked when the matching code is present in the response.
accepts	The content type specified in the request header, which informs the server about the sort of answer it will accept in return.
async	All queries are sent asynchronously by default. To make it synchronous, set it to “false”.
beforeSend	A callback function will be called before the Ajax request is issued.
cache	A boolean indicating the presence of browser cache. The default value is “true”.
complete	When the request is completed, a callback function is invoked.
contentType	When transmitting MIME material to the server, this string contains the kind of content. The default is “application/x-www-form-urlencoded; charset=UTF-8”.
crossDomain	A boolean value that indicates whether or not a request is cross-domain.
dataType	The type of data you anticipate receiving from the server.
error	When the request fails, a callback function is executed.
global	A boolean value indicating whether or not to invoke a global Ajax request handler. The default is “true”.
headers	An object containing additional header key/value pairs to deliver with the request.
ifModified	Only allow the request to succeed if the response has changed since the last request. The Last-Modified header is used to do this. The default setting is “false”.
isLocal	Allow the present environment to be acknowledged as local.
jsonp	In a JSONP request, you can change the name of the callback function. This value will be used instead of ‘callback’ in the query string’callback=?’ section of the URL
jsonpCallback	A string holding the name of the callback function for a JSONP request.
mimeType	Override the XMLHttpRequest mime type with a string containing a mime type.
password	In response to an HTTP access authentication request, utilize this password using XMLHttpRequest.
processData	A Boolean that indicates whether or not the data supplied to the data option will be transformed into a query string. The default value is “true”.

Example 1: The below example uses the ajax() method to get the text content from an external file demo.txt.

HTML

<!DOCTYPE html>
<html>
<head>
    <script src=
"https://ajax.googleapis.com/ajax/libs/jquery/3.6.0/jquery.min.js">
    </script>
</head>
<body>
    <h1 style="color:green">GeeksforGeeks</h1>
 
    <h2>Click on the button to send ajax request</h2>
    <button>Send</button>
 
    <h2 id="p1"></h2>
 
    <script>
        $(document).ready(function () {
            $("button").click(function () {
                $.ajax("demo.txt", {
                    success: function (data) {
                      // Success callback function
                      $("#p1").append(data);
                    },
                    error: function (errorMessage) {
                      // Error callback
                      $("#p1").append("Error: " + errorMessage);
                    },
                });
            });
        });
    </script>
</body>
</html>

demo.txt:

Welcome To GFG

Output:

Example 2: The following example demonstrates how to obtain JSON data using the ajax() function.

HTML

<!DOCTYPE html>
<html>
<head>
    <script src=
"https://ajax.googleapis.com/ajax/libs/jquery/3.6.0/jquery.min.js">
    </script>
 
    <style>
        #output {
            background-color: rgb(205, 228, 30);
            width: fit-content;
        }
    </style>
</head>
<body>
    <h1 style="color:green">GeeksforGeeks</h1>
 
    <h2>Click on the button to send ajax request</h2>
 
    <button>Send</button>
 
    <div id="output"></div>
 
    <script>
        $(document).ready(function () {
            $("button").click(function () {
                $.ajax("demo.json", {
                    success: function (data) {
                      // success callback function
                      $("#output").append("<p> Name: " + data.name + "</p>");
                      $("#output").append("<p>Age : " + data.age + "</p>");
                      $("#output").append("<p>Gender: " + data.gender + "</p>");
                    },
                    error: function (errorMessage) {
                      // error callback
                      $("#output").append("Error: " + errorMessage);
                    },
                });
            });
        });
    </script>
</body>
</html>

demo.json:

{
  "name": "Vishal Kumar", 
  "age" : "22", 
  "gender": "Male" 
}

Output:

What is the use of a WeakMap object in JavaScript ?

vishalkumar98765432

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How to get server response from an AJAX request using jQuery ?

Syntax:

Parameters:

HTML

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