dAi6SMat

1<?php
2
3class Api {
4
5    protected $options = [];
6
7    public function __construct($options = [])
8    {
9        $default_options = array(
10            'api_host'    => 'host',
11            'public_key'  => 'public key',
12            'private_key'  => 'private key',
13        );
14        $this->options = array_merge($default_options, $options);
15    }
16
17
18    public function set_option($key, $value)
19    {
20        $this->options[$key] = $value;
21    }
22
23
24    public function get($path, $params = [])
25    {
26        return $this->request($path, $params);
27    }
28
29
30    public function post($path, $params = [])
31    {
32        return $this->request($path, $params, 'POST');
33    }
34
35
36    public function request($path, $params = [], $canonical_verb='GET')
37    {
38        $headers = [];
39
40        $tonce = time() * 1000;
41        $api_host = $this->options['api_host'];
42
43        ksort($params);
44
45        $is_post = ($canonical_verb == 'POST');
46        if (!$is_post) {
47            $canonical_verb = 'GET';
48        } else {
49            $headers[] = 'Content-Type: application/json';
50            $headers[] = 'x-api-key: ' . $this->options['public_key'];
51            $headers[] = 'x-api-tonce: ' . $tonce;
52            $headers[] = 'x-api-signature: ' . hash_hmac('sha512', $path . $tonce . json_encode($params, JSON_UNESCAPED_UNICODE), $this->options['private_key']);
53        }
54
55        $canonical_uri = strtolower($path);
56        if (substr($api_host , -1) == '/') {
57            $api_host  = substr($api_host , 0, -1);
58        }
59
60        $url = $api_host . $path;
61        $query_str = http_build_query($params);
62        if ($is_post) {
63            $content = $this->contents($url, json_encode($params, JSON_UNESCAPED_UNICODE), $headers);
64        } else {
65            if (!empty($params)) {
66                $url .= '?' . $query_str;
67            }
68            $content = $this->contents($url, null, $headers);
69        }
70
71        if (empty($content)) {
72            throw new Exception('Content is empty');
73        }
74
75        $obj = json_decode($content, true);
76        if (empty($obj)) {
77            throw new Exception('JSON decode failed, content: ' . $content);
78        }
79        return $obj;
80    }
81
82
83    public function contents($url, $post_params = null, $headers = [])
84    {
85        $ch = curl_init();
86
87        curl_setopt($ch, CURLOPT_AUTOREFERER, true);
88        curl_setopt($ch, CURLOPT_HEADER, false);
89        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
90        curl_setopt($ch, CURLOPT_FOLLOWLOCATION, false);
91        curl_setopt($ch, CURLOPT_TIMEOUT, 60000);
92        curl_setopt($ch, CURLOPT_USERAGENT, 'API Client');
93
94        curl_setopt($ch, CURLOPT_URL, $url);
95        curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
96        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
97        if (!empty($post_params)) {
98            curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
99            curl_setopt($ch, CURLOPT_POST, true);
100            if (is_array($post_params)) {
101                $post_params = http_build_query($post_params);
102            }
103            curl_setopt($ch, CURLOPT_POSTFIELDS, $post_params);
104        }
105        $data = curl_exec($ch);
106        $curl_errno = curl_errno($ch);
107        $curl_error = curl_error($ch);
108        curl_close($ch);
109        if ($curl_errno > 0) {
110            throw new Exception("cURL Error ($curl_errno): $curl_error, url: {$url}");
111        }
112        return $data;
113    }
114}
115
116$client = new Api([
117    'api_host'    => 'https://creekex.com',
118    'public_key' => 'your public key',
119    'private_key' => 'your private key'
120]);
121
122
123try {
124    print_r($client->get('/api/market'));
125    //print_r($client->post('/api/v1/trading/order/create', ['market' => 'btc_usd', 'type' => 'sell', 'price' => 1, 'amount' => 1]));
126} catch (Exception $e) {
127    print_r($e->getMessage());
128}