Web service with Laravel: Laravel Philosophy Requirement Installation Basic Routing Requests & Input Request Lifecycle Controller Controller Filters RESTful Controllers Database Model using Eloquent ORM Creating A Migration Code Example

1. Boutique product development company
It is amazing what you can accomplish when you have a client-centric team to deliver outstanding products.

2. Boutique product development company
It is amazing what you can accomplish when you have a client-centric team to deliver outstanding products.
Web Services
with Laravel
Abuzer Firdousi | SE

3. Web Services with Laravel
Content: • Laravel Philosophy
• Requirement
• Installation
• Basic Routing
• Requests & Input
• Request Lifecycle
• Controller
• Controller Filters
• RESTful Controllers
• Database Model using Eloquent ORM
• Creating A Migration
• Code Example
• Questions
Abuzer Firdousi

4. Abuzer Firdousi
Laravel Philosophy
Laravel is a web application framework with expressive, elegant syntax. We believe development
must be an enjoyable, creative experience to be truly fulfilling. Laravel attempts to take the pain out
of development by easing common tas
•ROR
•ASP.NET MVC
•Sinatra (Sinatra is a DSL for quickly creating web applications in Ruby with minimal effort)
Laravel is accessible, yet powerful, providing powerful tools needed for large, robust applications.
Laravel, the elegant PHP framework for web artisans

5. Abuzer Firdousi
Server Requirements
The Laravel framework has a few system requirements:
•PHP >= 5.3.7
•MCrypt PHP Extension
As of PHP 5.5, some OS distributions may require you to manually install the PHP JSON extension.
When using Ubuntu, this can be done via apt-get install php5-json.
MCrypt:
1.aptitude install php5-mcrypt
2.echo extension=php_mcrypt.so >> /etc/php5/apache2/php.ini
3. /etc/init.d/apache2 restart

6. Abuzer Firdousi
Installation
Laravel utilizes Composer to manage its dependencies. First, download a copy of the
composer.phar.
Via Composer Create-Project
You may install Laravel by issuing the Composer create-project command in your terminal:
composer create-project laravel/laravel --prefer-dist
Via Download
Once Composer is installed, download the latest version of the Laravel framework and extract its
contents into a directory on your server. Next, in the root of your Laravel application, run the php
composer.phar install (or composer install) command to install all of the framework's
dependencies. This process requires Git to be installed on the server to successfully complete
the installation.
If you want to update the Laravel framework, you may issue the php composer.phar update
command.
Laravel provides a server, and we can run the server with “php artisan* serve”
* command-line interface, a powerful Symfony Console component

7. Abuzer Firdousi
Basic Routing
Most of the routes for your application will be defined in the app/routes.php file. The simplest
Laravel routes consist of a URI and a Closure callback.
Basic GET Route:
Route::get('/', function()
{
return 'Hello World';
});
Basic POST Route:
Route::post('foo/bar', function()
{
return 'Hello World';
});

8. Abuzer Firdousi
Route Parameters
Route Parameters:
Route::get('user/{id}', function($id)
{
return 'User '.$id;
});
Optional Route Parameters:
Route::get('user/{name?}', function($name = null)
{
return $name;
});
Throwing 404 Errors:
There are two ways to manually trigger a 404 error from a route. First, you may use the App::abort
method:
App::abort(404);

9. Abuzer Firdousi
Requests & Input
Retrieving An Input Value
$name = Input::get('name');
Retrieving A Default Value If The Input Value Is Absent
$name = Input::get('name', Abuzer);
Getting All Input For The Request
$input = Input::all();

10. Abuzer Firdousi
Request Life Cycle
The Laravel request lifecycle is fairly simple. A request enters your application and is dispatched
to the appropriate route or controller. The response from that route is then sent back to the
browser and displayed on the screen. Sometimes you may wish to do some processing before or
after your routes are actually called. There are several opportunities to do this, two of which are
"start" files and application events.

11. Abuzer Firdousi
Controllers
Instead of defining all of your route-level logic in a single routes.php file, you may wish to
organize this behavior using Controller classes. Controllers can group related route logic into a
class, as well as take advantage of more advanced framework features such as automatic
dependency injection.
Controllers are typically stored in the app/controllers directory, and this directory is registered in
the class map option of your composer.json file by default.
Here is an example of a basic controller class:
class UserController extends BaseController {
/** * Show the profile for the given user. */
public function showProfile($id)
{
$user = User::find($id); //
return Response::json( array('user' => $user) );
}
}

12. Abuzer Firdousi
Controllers and Routes
All controllers should extend the BaseController class. The BaseController is also stored in the
app/controllers directory, and may be used as a place to put shared controller logic. The
BaseController extends the framework's Controller class. Now, We can route to this controller
action like so:
Route::get('user/{id}', 'UserController@showProfile');
If you choose to nest or organize your controller using PHP namespaces, simply use the fully
qualified class name when defining the route:
Route::get('foo', 'NamespaceFooController@method');
You may also specify names on controller routes:
Route::get('foo', array('uses' => 'FooController@method', 'as' => 'name'));

13. Abuzer Firdousi
Controller Filters
Filters may be specified on controller routes similar to "regular" routes: ( Kind of Request
INTERCEPTOR)
Route::get('profile', array('before' => 'auth',
'uses' => 'UserController@showProfile'));
However, you may also specify filters from within your controller:
class UserController extends BaseController {
/** * Instantiate a new UserController instance. */
public function __construct()
{
$this->beforeFilter('auth', array('except' => 'getLogin'));
$this->afterFilter('log', array('only' =>
array('fooAction', 'barAction')));
}
}

14. Abuzer Firdousi
RESTful Controllers
Laravel allows you to easily define a single route to handle every action in a controller using
simple, REST naming conventions. First, define the route using the Route::controller method:
Defining A RESTful Controller
Route::controller('users', 'UserController');
The controller method accepts two arguments. The first is the base URI the controller handles,
while the second is the class name of the controller. Next, just add methods to your controller,
prefixed with the HTTP verb they respond to:
class UserController extends BaseController {
public function getIndex()
{ // }
public function postIndex()
{ // }
public function putIndex()
{ // }
public function deleteIndex()
{ // }
}

15. Abuzer Firdousi
Eloquent ORM
The Eloquent ORM included with Laravel provides a beautiful, simple ActiveRecord
implementation for working with your database. Each database table has a corresponding
"Model" which is used to interact with that table.
Before getting started, be sure to configure a database connection in app/config/database.php.
class User extends Eloquent {
protected $table = 'my_users';
}
Retrieving All Models
$users = User::all();
Retrieving A Record By Primary Key
$user = User::find(1);
Querying Using Eloquent Models
$users = User::where('votes', '>', 100)->take(10)->get();
foreach ($users as $user)
var_dump($user->name);

16. Abuzer Firdousi
Example

17. Questions ?
Abuzer Firdousi