AngularJS has provided a $http service that works as an ajax call in jquery. It performs a function of reading data from the server. $http makes a call to the database and retrieves the desired data or records.

How to use?

1. you need to inject $http into your controller.
2. you need to fire a method. There are several shortcut methods of the $http service:-
    •    .delete()
    •    .get()
    •    .head()
    •    .jsonp()
    •    .patch()
    •    .post()
    •    .put()

 To get the data you need to use .get() method. For example-

mainApp.controller( "editprofileController", function( $scope, $http, $state ) {
    editProfileData['responsetype'] = 'json';
    console.log( JSON.stringify( editProfileData ) );
    var responsePromise = $http.get( BASE_URL+"editprofile",JSON.stringify( editProfileData ) );
        responsePromise.success( function( data, status, headers, config ) {
        console.log( JSON.stringify( data ) );
    $scope.displaymsg = data.message;
    });
    responsePromise.error( function ( data, status, headers, config ) {
        console.log( JSON.stringify( data ) );
    } );

HTML-

<div ng-app="mainApp"  ng-controller="editprofileController">

<p>Today's welcome message is:</p>
<h1>{{displaymsg}}</h1>

</div>

$http comes with two functions,i.e. what to do on success and what to do on failure or error condition.

Note:- This is just an example. A simpler syntax is-

var url = "data.txt";

   $http.get(url).success( function(response) {

......

});