RajaOngkir.php

<?php

namespace Agungjk\Rajaongkir;

class RajaOngkir {
	protected $endpoint;
	protected $key;
	private $error;

	public function __construct(){
		$this->endpoint = config('rajaongkir.end_point_api', 'http://rajaongkir.com/api/starter');
		$this->key = config('rajaongkir.api_key');
		$this->city = json_decode(file_get_contents(__DIR__ . '/config/city.json'));
		$this->province = json_decode(file_get_contents(__DIR__ . '/config/province.json'));
	}	

	private function _request($path, $options = null)
	{
		$url = $this->endpoint . "/" . $path;

		$curl = curl_init();
		$config = array(
			CURLOPT_URL => $url,
			CURLOPT_RETURNTRANSFER => true,
			CURLOPT_ENCODING => "",
			CURLOPT_MAXREDIRS => 10,
			CURLOPT_TIMEOUT => 30,
			CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
			CURLOPT_CUSTOMREQUEST => "GET",
			CURLOPT_HTTPHEADER => array(
		    	"key: " . $this->key
			),
		);
		$config = array_merge($config, $options);
		curl_setopt_array($curl, $config);

		$response = curl_exec($curl);
		$err = curl_error($curl);
		curl_close($curl);

		if ($err) {
			throw new Exception($err, 1);
		}

		if (! isset($response->rajaongkir)) {
			$this->error = 'Response not valid';
			return false;
		}

		$rajaongkir = $response->rajaongkir;

		if ( $rajaongkir->status->code == 400 ) {
			$this->error = $rajaongkir->status->description;
		}

		if ( $rajaongkir->status->code == 200 ) {
			return $rajaongkir->results;
		}
	}

	public function province($id = null)
	{
		if ($id = null) {
			return empty($this->province) ? self::_request('/province') : $this->province;
		}

		if (empty($this->province)) {
			return self::_request('/province?id=' . $id);
		}

		foreach ($this->province as $key => $value) {
			if ($value->province_id == $id) {
				return $value;
			}
		}

		return null;
	}

	public function city($id = null)
	{
		if ($id == null) {
			return empty($this->city) ? self::_request('/city') : $this->city;
		}

		if (empty($this->city)) {
			return self::_request('/city?id=' . $id);
		}

		foreach ($this->city as $key => $value) {
			if ($value->city_id == $id) {
				return $value;
			}
		}
		
		return null;
	}

	public function cost($origin, $destination, $weight, $courier)
	{
		$options = [
			CURLOPT_CUSTOMREQUEST => "POST",
			CURLOPT_POSTFIELDS => "origin=". $origin ."&destination=". $destination ."&weight=". $weight ."&courier=". $courier,
			CURLOPT_HTTPHEADER => array(
				"content-type: application/x-www-form-urlencoded",
		    	"key: " . self::key
			),
		];
		return self::_request('/cost', $options);
	}

}