Merge pull request #190 from brintal/master

Custom dispatcher for sharedClient to allow for more parallel requests.

Author: joaopsilva

src/main/java/com/binance/api/client/impl/BinanceApiServiceGenerator.java

@@ -4,6 +4,7 @@
 import com.binance.api.client.constant.BinanceApiConstants;
 import com.binance.api.client.exception.BinanceApiException;
 import com.binance.api.client.security.AuthenticationInterceptor;
+import okhttp3.Dispatcher;
 import okhttp3.OkHttpClient;
 import okhttp3.RequestBody;
 import okhttp3.ResponseBody;
@@ -22,12 +23,20 @@
  * Generates a Binance API implementation based on @see {@link BinanceApiService}.
  */
 public class BinanceApiServiceGenerator {
-    private static final OkHttpClient sharedClient = new OkHttpClient.Builder()
-            .pingInterval(20, TimeUnit.SECONDS)
-            .build();
 
+    private static final OkHttpClient sharedClient;
     private static final Converter.Factory converterFactory = JacksonConverterFactory.create();
 
+    static {
+        Dispatcher dispatcher = new Dispatcher();
+        dispatcher.setMaxRequestsPerHost(500);
+        dispatcher.setMaxRequests(500);
+        sharedClient = new OkHttpClient.Builder()
+                .dispatcher(dispatcher)
+                .pingInterval(20, TimeUnit.SECONDS)
+                .build();
+    }
+
     @SuppressWarnings("unchecked")
     private static final Converter<ResponseBody, BinanceApiError> errorBodyConverter =
             (Converter<ResponseBody, BinanceApiError>)converterFactory.responseBodyConverter(