Merge pull request #84 from niulingyun/master

custom headers

Author: hhxsv5

src/Api.php

@@ -48,6 +48,11 @@ abstract class Api
      */
     protected static $logLevel = Logger::DEBUG;
 
+    /**
+     * @var array
+     */
+    protected static $customHeaders;
+
     /**
      * @var IAuth $auth
      */
@@ -171,6 +176,22 @@ public static function setLogLevel($logLevel)
         self::$logLevel = $logLevel;
     }
 
+    /**
+     * @param array $headers
+     */
+    public static function setCustomHeaders(array $headers)
+    {
+        self::$customHeaders = $headers;
+    }
+
+    /**
+     * @return array
+     */
+    public static function getCustomHeaders()
+    {
+        return self::$customHeaders;
+    }
+
     /**
      * @param string $method
      * @param string $uri
@@ -198,6 +219,11 @@ public function call($method, $uri, array $params = [], array $headers = [], $ti
             $headers = array_merge($headers, $authHeaders);
         }
         $headers['User-Agent'] = 'KuCoin-PHP-SDK/' . static::VERSION;
+
+        if (self::$customHeaders) {
+            $headers = array_merge($headers, self::$customHeaders);
+        }
+
         $request->setHeaders($headers);
 
         $requestId = uniqid();