Merge pull request #190 from ainblockchain/feature/platfowner/feature

Add isConnected() method for event handler channel connection

__tests__/event_manager.test.ts

@@ -29,6 +29,12 @@ describe('Event Handler', function() {
     ain.em.disconnect();
   });
 
+  describe('Channel connection', () => {
+    it('isConnected()', () => {
+      expect(ain.em.isConnected()).toBe(true);
+    });
+  });
+
   describe('BLOCK_FINALIZED', () => {
     it('Subscribe to BLOCK_FINALIZED', (done) => {
       eventFilterId = ain.em.subscribe('BLOCK_FINALIZED', {

src/event-manager/index.ts

@@ -28,6 +28,13 @@ export default class EventManager {
     this._eventChannelClient = new EventChannelClient(ain, this._eventCallbackManager);
   }
 
+  /**
+   * Returns whether the client in connection.
+   */
+  isConnected(): boolean {
+    return this._eventChannelClient.isConnected;
+  }
+
   /**
    * Opens a new event channel.
    * @param {DisconnectionCallback} disconnectionCallback The disconnection callback function.