merge development

1 files changed, 29 insertions, 0 deletions

diff --git a/packages/connect/src/orders_channel_factory.ts b/packages/connect/src/orders_channel_factory.ts
new file mode 100644
index 000000000..5986d2a77
--- /dev/null
+++ b/packages/connect/src/orders_channel_factory.ts
@@ -0,0 +1,29 @@
+import * as WebSocket from 'websocket';
+
+import { OrdersChannel, OrdersChannelHandler } from './types';
+import { assert } from './utils/assert';
+import { WebSocketOrdersChannel } from './ws_orders_channel';
+
+export const ordersChannelFactory = {
+    /**
+     * Instantiates a new WebSocketOrdersChannel instance
+     * @param   url                  The relayer API base WS url you would like to interact with
+     * @param   handler              An OrdersChannelHandler instance that responds to various
+     *                               channel updates
+     * @return  An OrdersChannel Promise
+     */
+    async createWebSocketOrdersChannelAsync(url: string, handler: OrdersChannelHandler): Promise<OrdersChannel> {
+        assert.isUri('url', url);
+        assert.isOrdersChannelHandler('handler', handler);
+        return new Promise<OrdersChannel>((resolve, reject) => {
+            const client = new WebSocket.w3cwebsocket(url);
+            client.onopen = () => {
+                const ordersChannel = new WebSocketOrdersChannel(client, handler);
+                resolve(ordersChannel);
+            };
+            client.onerror = err => {
+                reject(err);
+            };
+        });
+    },
+};