API call in JavaScript Using the jQuery AJAX

jQuery is a library used to make JavaScript programming simple and if you are using it then with the help of the $.ajax() method you can make asynchronous HTTP requests to get data.

To learn more about jQuery AJAX, refer to this article: What is the use of jQuery ajax() method?

Example: In this example, jQuery AJAX is used to make an API call.

Explanation of the above example

Step A: Makinig an API request.

To make an HTTP request use the $.ajax() method and pass a URL inside it by giving the necessary method.

$.ajax({
    url: 'APIURL',
    method: 'GET',
})

Step B: Handling and Parsing the response.

We will use a callback function success to handle the response and if the response is present we will parse the data to JSON format.

success: function(response) {
        const parsedData = JSON.parse(response);
        // Process the parsed data here
}

Step C: Handling Error.

To handle an error during the API call, we will use the error callback function. 

Here xhr object contains information about the request.

error: function(xhr, status, error) {
        // Handle any errors
}

To handle the response, it has two callback functions success and error. 

API(Application Programming Interface) is a set of protocols, rules, and tools that allow different software applications to access allowed functionalities, and data, and interact with each other. API is a service created for user applications that request data or some functionality from servers.

To give specific access to our system to other applications that may be useful to them, developers create APIs and give them endpoints to interact and access the server data. While working with JavaScript it is common to interact with APIs to fetch data or send requests to the server.

4 Ways to Make an API Call in JavaScript: