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JQuery
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In this tutorial we will learn how to use API in javaScript using Ajax.
How to use API in javaScript using Ajax
To use an API in JavaScript using Ajax, you can follow these steps:
Step 1 - Create an XMLHttpRequest object
var xhr = new XMLHttpRequest();
Step 2 - Open a connection to the API URL
xhr.open('GET', 'https://api.example.com/data', true);
Step 3 - Set the response type and headers if necessary
xhr.responseType = 'json';
xhr.setRequestHeader('Content-Type', 'application/json');
Step 4 - Define a callback function to handle the response
xhr.onload = function() {
if (xhr.status === 200) {
// do something with the response data
console.log(xhr.response);
} else {
// handle errors
console.error(xhr.statusText);
}
};
Step 5 - Send the request
xhr.send();
Here's an example of using Ajax to get data from a JSON API:
var xhr = new XMLHttpRequest();
xhr.open('GET', 'https://api.example.com/data', true);
xhr.responseType = 'json';
xhr.setRequestHeader('Content-Type', 'application/json');
xhr.onload = function() {
if (xhr.status === 200) {
var data = xhr.response;
console.log(data);
} else {
console.error(xhr.statusText);
}
};
xhr.send();
Note: This is just a basic example, and there are many variations and options for using Ajax with APIs in JavaScript.