iPaymer.php

<?php 


class iPaymer
{
    private $endpoint = 'http://127.0.0.1:8080/api/v{version}/';
    private $secret;

    private function __construct($secret, $v)
    {
        $this->secret = $secret;
        $this->endpoint = str_replace('{version}', $v, $this->endpoint);
    }

    public static function make($secret, $v = '1')
    {
        return new iPaymer($secret, $v);
    }

    private function headers()
    {
        return [
            'X-iPaymer-Secret: '.$this->secret,
            'Accept: Application/json',
        ];
    }

    public function sendGetRequest($endpoint, $parameters = [])
    {
        $url = $this->endpoint . ltrim($endpoint, '/');

        if (!empty($parameters)) {
            $url .= '?' . http_build_query($parameters);
        }

        $ch = curl_init();
        curl_setopt($ch, CURLOPT_VERBOSE, true);
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($ch, CURLOPT_HTTPHEADER, $this->headers());
        
        $response = curl_exec($ch);
        $error = curl_error($ch);

        $responseCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);

        curl_close($ch);

        return $this->constructResponse($url, $response, $responseCode, $error);
    }

    public function sendPutRequest($endpoint, $parameters)
    {
        return $this->sendPostRequest($endpoint, array_merge($parameters, [
            '_method' => 'PUT',
        ]));
    }

    public function sendDeleteRequest($endpoint, $parameters)
    {
        return $this->sendPostRequest($endpoint, array_merge($parameters, [
            '_method' => 'DELETE',
        ]));
    }

    public function sendPostRequest($endpoint, $parameters = [])
    {
        $url = $this->endpoint . ltrim($endpoint, '/');

        $ch = curl_init();
        curl_setopt($ch, CURLOPT_VERBOSE, true);
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); 
        curl_setopt($ch, CURLOPT_HTTPHEADER, $this->headers());
        curl_setopt($ch, CURLOPT_POST, true);
        curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($parameters));

        $response = curl_exec($ch);
        $error = curl_error($ch);
        
        $responseCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);

        curl_close($ch);

        return $this->constructResponse($url, $response, $responseCode, $error);
    }

    private function constructResponse($url, $response, $code, $error) 
    {
        $body = json_decode($response);
        return [
            'endpoint' => $url,
            'response' => $response,
            'body' => !empty($response) && json_last_error() === JSON_ERROR_NONE ? $body : new stdClass,
            'code' => $code,
            'error' => $error,
        ];
    }
}


$iPaymer = iPaymer::make('9dc1479e-0565-4ee2-865c-0220e7e21420', 1);

$response = $iPaymer->sendGetRequest('invoice');

echo '<pre>'; print_r($response);

// var_dump($iPaymer);