PHP JSON API Library

Version 2 of our library for building HTTP JSON APIs in PHP.

Some major changes in version 2

Adopt better code practices, allowing for Dependency Injection
Adopt our new "Single Responsibility Controller" approach
Decouple Router from JAPI container
Use PSR logging
Adopt PHP 5.4 minimum version

As we expand our Service Orientated Architecture (SOA) at Docnet, we're using this more and more - so I hope it's useful to someone else ;)

Intended to use HTTP status codes wherever possible for passing success/failure etc. back to the client.

Single Responsibility Controller

We've adopted a new (for us) take on routing and controller complexity in 2.0. As such, where previously, you might have had multiple actions (methods) on the same class like this:

BasketController::fetchDetailAction()
BasketController::addAction()
BasketController::removeAction()
BasketController::emptyAction()

Now this would be 4 name-spaced classes, like this

Basket\FetchDetail
Basket\Add
Basket\Remove
Basket\Empty

This allows for

Greater code modularity
Smaller classes
Much easier Dependency Injection via __construct() as each "action" is it's own class.

You can still share common code via extension/composition - whatever takes your fancy!

JAPI will call the dispatch() method on your controller.

SOLID Routing

The bundled router will accept any depth of controller namespace, like this

/one => One
/one/two => One\Two
/one/two/three => One\Two\Three

When you construct the Router, you can give it a "root" namespace, like this:

$router = new \Docnet\JAPI\SolidRouter('\\Docnet\\App\\Controller\\');

Which results in this routing:

/one/two => \Docnet\App\Controller\One\Two

Static Routes

If you have some static routes you want to set up, that's no problem - they also bypass the routing regex code and so make calls very slightly faster.

Add a single custom route

$router = new \Docnet\JAPI\SolidRouter();
$router->addRoute('/hello', '\\Some\\Controller');

Or set a load of them

$router = new \Docnet\JAPI\SolidRouter();
$router->setRoutes([
    '/hello' => '\\Some\\Controller',
    '/world' => '\\Other\\Controller'
]);

Installation

Here's the require line for Composer users (during 2-series development)...

"docnet/php-japi": "2.0.*@dev"

...or just download and use the src folder.

Bootstrapping

Assuming...

You've got Apache/whatever set up to route all requests to this file
An auto-loader is present (like the Composer example here) or you've included all files necessary

...then something like this is all the code you need in your index.php

(new \Docnet\JAPI())->bootstrap(function(){

    $obj_router = new \Docnet\JAPI\SolidRouter();
    $obj_router->route();

    $str_controller = $obj_router->getController();
    return new $str_controller();

});

See the examples folder for a working demo (api.php).

Coding Standards

Desired adherence to PSR-2. Uses PSR-3 logging.

tomwalder / php-japi