Ajax and API

API - Application Program Interface 

It is a  set of functions and procedures that allow the creation of applications which access the features or data of an operating system, application, or other service.

what i understood..

It is like a middle ware between user and the database ( can made from java/PHP/java script) .
Not giving the full access to the user
Hiding the real data ( like a SQL view or can be real data too)
in web services we use " ajax " to access the  database through API ( not always )

user uses --> ajax --> to access API -->database

AJAX - Asynchronous JavaScript and XML

 In a nutshell, it is the use of the XMLHttpRequest object to communicate with server-side scripts. It can send as well as receive information in a variety of formats, including JSON, XML, HTML, and even text files

AJAX is a developer's dream, because you can:

• Update a web page without reloading the page
• Request data from a server - after the page has loaded
• Receive data from a server - after the page has loaded
• Send data to a server - in the background

what is learnt in lab class..

Write a function to call GitHub API (https://api.github.com/users) and get users and return the users to the caller.

function getSomething() {
    $.ajax({
        url: 'https://api.github.com/users',
        method: 'POST',
        success: function (data) {
            console.log(data);
        },
        error: function (data) {
            console.log(data);
        }
    });
};

getSomething();