REST API products and categories from pinnacleCart

<?php
class Products extends MX_Controller 
{
    function __construct()
    {
        parent::__construct();
 
	// Load the rest client spark
	$this->load->spark('restclient/2.1.0');
 
	// Load the library
	$this->load->library('rest');
 
	//load domain, format and API creds
	$this->secure_domain = 'https://www.yoursecuredomain.com/';
	$this->user = 'apiuser';
	$this->pass = 'apipass';
	$this->token = 'apitokenstring';
	$this->format = 'json';
    }
	public function getCategories(){
 
		// Run some setup
		$this->rest->initialize(array('server' => $this->secure_domain));
		$call = 'GetCategories';
		$url = 'content/admin/plugins/openapi/index.php?token=' . $this->token . '&apiType=' . $this->format . '&call=' . $call . '&username=' . $this->user . '&password=' . $this->pass;
 
		$categories = $this->rest->get( $url );
		print json_encode( $categories );
    } 
	public function getRecentlyAdded($num){
		// Run some setup
		$this->rest->initialize(array('server' => $this->secure_domain));
		$call = 'GetProducts';
		$call .= '&mode=search&BatchPage=3&BatchSize=' . $num . '&CatalogSortBy=date';
		$url = 'content/admin/plugins/openapi/index.php?token=' . $this->token . '&apiType=' . $this->format . '&call=' . $call . '&username=' . $this->user . '&password=' . $this->pass;
 
		$products = $this->rest->get( $url );
		print json_encode( $products );
    }        
    public function getProductsByCategory($id){
 
    // if URL contains $mode = 'category' then do PrimaryCategory request
    // URL Scheme : ~/restclient/getProductsByCategory/$catID/$batch_size/
		$this->uri = array(
			//'mode' 		=> $this->uri->segment(2), -- assumed mode by default -- PrimaryCategory (argument)
			'category' 	=> $id, //$this->uri->segment(3)
			'batch' 	=> $this->uri->segment(5)
		);
 
		// Run some setup
		$this->rest->initialize(array('server' => $this->secure_domain));
		$call = 'GetProducts';
 
		$args = 'PrimaryCategory=' . $this->uri['category'];
		$batch_size = $this->uri['batch'];
 
		$call .= '&' . $args . '&BatchSize=' . $batch_size . '&CatalogSortBy=date'; //build up args	
		$url = 'content/admin/plugins/openapi/index.php?token=' . $this->token . '&apiType=' . $this->format . '&call=' . $call . '&username=' . $this->user . '&password=' . $this->pass;
 
		$products = $this->rest->get( $url );
		print json_encode( $products );
 
    }
    public function getProductImagesByCategory($id){
 
    // if URL contains $mode = 'category' then do PrimaryCategory request
    // URL Scheme : ~/restclient/getProductsByCategory/$catID/$batch_size/
		$this->uri = array(
			//'mode' 		=> $this->uri->segment(2), -- assumed mode by default -- PrimaryCategory (argument)
			'category' 	=> $id, //$this->uri->segment(3)
			'batch' 	=> $this->uri->segment(5)
		);
 
		// Run some setup
		$this->rest->initialize(array('server' => $this->secure_domain));
		$call = 'GetProducts';
 
		$args = 'PrimaryCategory=' . $this->uri['category'];
		$batch_size = $this->uri['batch'];
 
		$call .= '&' . $args . '&BatchSize=' . $batch_size . '&CatalogSortBy=date'; //build up args	
		$url = 'content/admin/plugins/openapi/index.php?token=' . $this->token . '&apiType=' . $this->format . '&call=' . $call . '&username=' . $this->user . '&password=' . $this->pass;
 
		$products = $this->rest->get( $url );
 
		$result = array();
 
		foreach($products as $i=>$prod){
			foreach($prod->Product as $key=>$value){
			if($key!='Description') $result[$i]['Product'][$key] = $value;
		}}
		print json_encode( $result );
 
    }	
    // URL Scheme : ~/restclient/getProducts/$mode/$batch_size/
	$this->uri = array(
		'mode' => $mode,
		'batch' => $this->uri->segment(5),
		'keyword1' => $this->uri->segment(6),
		'keyword2' => $this->uri->segment(7),
		'keyword3' => $this->uri->segment(8),
	);
 
		// Run some setup
		$this->rest->initialize(array('server' => $this->secure_domain));
		$call = 'GetProducts';
 
		$args = 'mode=' . $this->uri['mode']; 
 
	if( $this->uri['batch']!='' && $this->uri['mode'] == 'search' )	
		$args .= '&BatchSize=' . $this->uri['batch'];
 
	if( $this->uri['keyword1']!='' ) 
		$args .= '&keywords=' . $this->uri['keyword1'];
 
	if( $this->uri['keyword2']!='' ) 
		$args .= ',or,' . $this->uri['keyword2'];
 
	if( $this->uri['keyword3']!='' ) 
		$args .= ',or,' . $this->uri['keyword3'];
 
		$args .= '&CatalogSortBy=added';
 
	// string : API arguments and URL string
	$call .= '&' . $args;// . '&BatchSize=' . $batch_size; //build up args	
	$url = 'content/admin/plugins/openapi/index.php?token=' . $this->token . '&apiType=' . $this->format . '&call=' . $call . '&username=' . $this->user . '&password=' . $this->pass;
	// REST GET REQUEST
	$products = $this->rest->get( $url );
	print json_encode( $products );
 
    }
}